document_title: Blue Line (CTA)

question_text: where does the blue line end at o'hare

question_tokens: where does the blue line end at o'hare

text: Blue Line (CTA)

text: History[edit]

text: The most vintage components of the Blue Line began as part of the Metropolitan West Side Elevated Railroad in 1895. The first section to be built by the Metropolitan extended west in the vicinity of Van Buren Street from an independent terminal at Canal and Jackson Streets to Marshfield Avenue, and then northward in the vicinity of Paulina Street to Damen and Milwaukee Avenues. Service on this section began on May 6, 1895.[2] The structure was completed from Damen Avenue to Logan Square on May 25, 1895.[citation needed]

text: The next stage in the development of the West Side 'L' came on June 19, 1895, when the Garfield Park Branch was added, extending west in the vicinity of Van Buren Street and Harrison Street from Marshfield Avenue to Cicero Avenue.[3]  An extension of service over the tracks of the Aurora, Elgin and Chicago Railroad to a new terminal at Desplaines Avenue was established on March 11, 1905. A subsequent extension to Westchester opened on October 1, 1926.[4] (Low ridership would prompt the CTA to discontinue service on the Westchester extension on December 9, 1951.[4])

text: Another branch line was added to the rapidly growing Metropolitan System on July 29, 1895, when trains began operating over the Humboldt Park Branch, paralleling North Avenue from Damen Avenue to a terminal at Lawndale Avenue. (The route was discontinued on May 3, 1952.[5]) This was followed by still another addition when the Douglas Park Branch was placed in operation as far south as 18th Street on April 28, 1896.[6]

text: As the southwest area of the city developed, the Douglas Park Branch was extended from 18th Street to Western Avenue in September 1896; to Pulaski Road in June 1902; to Cicero Avenue in December 1907; to Central Avenue in August 1912; to 62nd Avenue in August 1915, and to Oak Park Avenue in Berwyn on March 16, 1924. The Douglas Park branch was later cut back to 54th Avenue in Cicero, Illinois.

text: The Metropolitan West Side Elevated began service onto the Loop on October 11, 1897,[7] and a rush period stub terminal at Wells Street was added October 3, 1904. For much of the early 20th century and through the 1940s, service on the West Side Elevated lines went unchanged until the Chicago Transit Authority took control of Chicago's Rapid Transit System on October 1, 1947, initiating a series of massive service cuts and station closings (that would last until the 1980s).[citation needed]

text: On February 25, 1951, the CTA opened the Milwaukee-Dearborn Subway, connecting the Milwaukee Avenue elevated route (formerly Logan Square) with the Loop on a fast, efficient and more direct routing through the heart of the city.[8] With opening of the Dearborn Subway, the old elevated alignment between Evergreen and Marshfield Avenues was decommissioned, used only for moving out-of-service rail cars. The north section of this connection between Evergreen Avenue and Lake Street was subsequently demolished in the 1960s, leaving the Lake Street Branch-to-Douglas Branch section or the "Paulina Connector" still in existence.[citation needed]

text: The Garfield Park elevated was replaced by the Congress line on June 22, 1958,[9] pioneering the world's first use of rail rapid transit and a multi-lane automobile expressway in the same grade-separated right-of-way.[10] (Pacific Electric Railway "Red Car" tracks ran in the median of the Cahuenga Parkway in Los Angeles from 1944 until its expansion into the Hollywood Freeway in 1952, but the Pacific Electric service was an interurban streetcar rather than true rapid transit.) The new line connected with the Milwaukee-Dearborn Subway at the Chicago River and extended westward to Des Plaines Avenue in Forest Park. Loomis Ramp, built at this same time, permitted Douglas trains to operate through the subway as well combining the Logan Square, Garfield Park (now Congress) and Douglas routes into the second through service in Chicago, the West-Northwest route.[11]

text: A five-mile (8 km) extension of the route via the short subway connection and the Kennedy Expressway median from Logan Square to Jefferson Park opened on February 1, 1970. It was also built by the City of Chicago using federal money. From Logan Square, trains veer off of the old elevated structure and enter the subway under Milwaukee and Kedzie Avenues to a portal just south of Addison Street, then continue northwest in the median of the Kennedy Expressway to the temporary terminal at Jefferson Park. In March 1980, construction began on the O'Hare Airport extension of the Kennedy route between Jefferson Park and the airport. The first section between Jefferson Park and Rosemont was placed in service on February 27, 1983,[citation needed] and the final section to O'Hare on September 3, 1984.[12]

text: On February 21, 1993, the CTA adopted a color-coded naming system to the rapid transit system, and the West-Northwest route (OHare-Congress/Douglas) became the Blue Line. On April 26, 1998, the Douglas Branch lost its overnight (owl) and weekend service and began operating between 4 a.m. and 1 a.m. on weekdays only as a result of funding shortages requiring CTA to cut services. Congress (Forest Park) service was effectively doubled through much of the day since service frequency from O'Hare required shorter headways than what would have been left.

text: Reasons for the Douglas Branch service reduction were due to its low ridership, badly deteriorated infrastructure and funding problems, while many residents in the communities it runs through had claimed that it was just another attempt by the CTA to eliminate transit service on the West Side.

text: On September 10, 2001, the CTA began a historic reconstruction of the Douglas Branch to repair its aging stations and tracks. The work was officially completed on January 8, 2005 with new elevated structures, tracks, stations, new communication networks and an upgraded power system along the route. On January 1, 2005, weekend service was restored.

text: In January 2005, the CTA held hearings on a proposal to reroute much of the Douglas Branch service via the recently rebuilt Paulina Connector to the Lake Street Green Line, carrying Douglas trains to and around the elevated Chicago Loop (clockwise) for the first time since Douglas trains began using the Milwaukee-Dearborn Subway in downtown Chicago in 1958. It was the first stage of what became the Pink Line. This would have allowed a doubling of Blue Line trains to Forest Park on the Congress Branch, since service would no longer be divided between the Forest Park and 54th/Cermak terminals. Due to community fears that the Pink Line would not be enough, however, the CTA decided to retain limited Douglas Branch Blue Line service during weekday rush hours.

text: On February 15, 2006, the CTA approved the separate operation of the Douglas Branch plan. All non-rush hour trains would all be routed via the Loop, Green Line and Paulina Connector. During rush hour, service was available on the new route as well as the existing route via the Milwaukee-Dearborn Subway. These changes were scheduled to be implemented for a 180-day trial period beginning June 25, 2006 and after their evaluation in early 2007, the Pink Line remained in service.

text: Beginning April 28, 2008, the CTA began a six-month experimental ceasing of Blue Line operations on the Douglas[13] Despite maintaining that the service cut was an experiment, the CTA covered Blue Line stations' directional signage for trains to 54th/Cermak with paint rather than temporary covering, suggesting it was a permanent discontinuation instead of a temporary one. All Douglas Branch operations are now served by the Pink Line.[14] On December 4, 2008, CTA announced its decision to permanently discontinue Blue Line service on the Douglas branch and to make the Pink Line permanent.[15]

text: On October 15, 2015, the CTA announced that they now have full 4G wireless service on the Blue Line in between the Logan Square and Belmont stations. In the future this will mean that the CTA will be the largest rapid transit system with 4G coverage in subway tunnels and stations, this is targeted for the end of 2015.[16]

text: Route[edit]

text: O'Hare Branch[edit]

text: The O'Hare Branch is the longest section of the Blue Line (14.6 miles (23.5 km)) and comprises both the oldest and newest segments of the entire route. The line starts at O'Hare International Airport in an underground station below the main parking garage, servicing Terminals 1, 2, and 3. The line emerges in the median of the O'Hare main access road (Interstate 190) just northwest of Terminal 5, about a mile (1.6 km) west of Mannheim Road. The line runs in the median of Interstate 190 east through Rosemont. The line has a stop at River Road in Rosemont, which is also the location of one of the line's two storage yards, then tunnels beneath the Kennedy Expressway/Northwest Tollway interchange near the Des Plaines River. The line runs in the median of the Kennedy Expressway (Interstate 90) until a point southeast of Addison Street. South of Addison Street, the line exits the freeway and enters a subway under Kimball Avenue. The line travels under Kimball Avenue and Milwaukee Avenues through Logan Square. South of Logan Square, the line emerges above ground onto an elevated structure parallel to Milwaukee Avenue. This section of structure, built in 1895 as part of the Metropolitan Elevated's Northwest Branch, is the oldest portion of the Blue Line, and the sole section of the line on an elevated viaduct. The three stations on this section (California Avenue, Western Avenue, and Damen Avenue) are also the only three stations on the line to use side platforms instead of island platforms.

text: Milwaukee-Dearborn Subway[edit]

text: At the intersection of Ashland and Milwaukee Avenues, the Blue Line descends underground, swings over to Milwaukee Avenue, and continues southeast towards downtown under Milwaukee Avenue (with stops at Division Street, Chicago Avenue and Grand Street), east under Lake Street (crossing beneath the Chicago River) (with a stop at Clark/Lake Streets), south under Dearborn Street through the Loop (with stops at Washington Street, Monroe Street, and Jackson Boulevard) and west under Congress Parkway (with stops at LaSalle Street and Clinton Street). The tracks emerge from a portal near Halsted Street in the median of the Eisenhower Expressway (Interstate 290) and continue west. Jackson provides a transfer tunnel to the Red Line. Until October 2006, a transfer tunnel existed at Washington as well.

text: A downtown superstation has been proposed to provide express service from the Loop to both O'Hare and Midway Airports, via the Blue and Orange Lines respectively. The station would provide services such as baggage check. However, budget issues plague the operation and have prevented construction.[17]

text: Forest Park (Congress) Branch[edit]

text: After exiting the subway, the tracks continue west in the median of the Eisenhower Expressway generally known as the Congress Branch. Immediately west of the Racine station, the Congress tracks diverge to permit a ramp up to the Douglas Branch elevated structure. This ramp was formerly used in revenue service when the Blue Line operated over the Douglas branch as well as the Congress branch. With the replacement of Douglas branch Blue Line service with the Pink Line, the ramp is now non-revenue trackage, and the only connection between the Blue Line's tracks and the rest of the system. The Congress Branch remains in the median of the expressway through the west side of Chicago until it reaches a portal at Lotus. At this point the tracks tunnel beneath the eastbound expressway lanes and before emerging on the south side of the expressway next to the Baltimore and Ohio Chicago Terminal Railroad (CSX) tracks. The route passes through Oak Park and into Forest Park. In the vicinity of Desplaines Avenue the tracks rise and make an S-curve north over the expressway before terminating at a station on the west side of Desplaines Avenue.

text: Former routings[edit]

text: Cermak (Douglas) Branch[edit]

text: The Douglas Branch begins at 54th Avenue and Cermak Road in Cicero. The line runs east on street level right-of-way just north of and parallel to Cermak Road from the terminal to about a quarter-mile (400 m) east of Cicero Avenue, then diagonals northeast until it reaches a corridor parallel and adjacent to 21st Street at Kostner Avenue. It then continues east between 21st Street and Cullerton Street, climbing up from surface level to elevated structure, through the North Lawndale, Little Village, and Pilsen neighborhoods of Chicago, with stops at Kostner, Pulaski, Central Park, Kedzie, California, Western and Damen. The line turns north near Paulina Street stopping at 18th and Polk Streets then curves east over the Eisenhower Expressway (Interstate 290). The Douglas tracks ramps down to the surface of the median of the expressway and joins the Congress (Forest Park) Branch just before the Racine station. On April 28, 2008, the CTA eliminated Blue Line service on the Douglas branch, having been replaced by the Pink Line.[13] The Loomis ramp that connects the Congress Line to the Douglas Line remains intact for non-revenue equipment moves, as the only track connection between the Blue Line and the rest of the system.

text: Operating hours and headways[edit]

text: Like the Red Line, the Blue Line runs 24 hours a day.  Most trains run between O'Hare and Forest Park stations, but others terminate at a different station along the line.  On weekdays, service runs very frequently at three to ten minutes during rush hour (with some trains running between UIC-Halsted and Jefferson Park or Rosemont only), and seven to ten minutes during the midday and nighttime.  On Saturdays, service runs every eight minutes early morning, then increase to six minutes during the day, then seven to eight minutes at night.  On Sundays, service runs every eight to ten minutes early morning, then increase to six minutes all day, then ten minutes at night.  On the weekends, every other Blue Line train operates between O'Hare and UIC-Halstead only during the daytime, doubling the headways up to twelve minutes.  Between approximately midnight and 5:30 a.m., night owl service on the Blue Line ranges between fifteen and thirty minutes.[18]

text: Rolling stock[edit]

text: The Blue Line is operated with the 2600-series railcars. Trains operate using eight cars on weekdays and four cars on weekends, while four-car trains operate during late nights and early mornings. The 2600-series cars are to remain in service on the line until 2024 when the base order of 400 new 7000-series cars enter service to replace the entire fleet of the 2600-series cars.[19][20] The Blue Line currently uses the oldest cars in the CTA's fleet because the current power systems on the Blue Line is not sufficient to run a high number of trains using the 5000-series cars. The power systems are currently being upgraded. [21]

text: Accidents and incidents[edit]

text: On July 11, 2006, a derailment caused a smokey fire in the Blue Line's Milwaukee-Dearborn Subway. There were injuries from smoke inhalation, but no fatalities. The comparatively minor incident prompted heavy news coverage and a temporary stoppage of Chicago subway service because it occurred hours after train bombings in Mumbai earlier the same day.[22]

text: On September 30, 2013, two Blue Line trains collided at Harlem (Congress Branch), injuring 33 people, after an outbound train was hit by an out-of-service train going the opposite direction on the same track. Earlier, the train had arrived at Forest Park, and went out of service. However, after the train pulled into the Desplaines Yard, it was left on. There were no passengers on the out-of-service train; the number of workers on it at the time of the crash was also an unknown. Also unknown was the total number of passengers on the outbound, in-service train. The investigation started shortly thereafter. Though service soon went back to normal, trains did not stop at the Harlem station until the late evening on Tuesday, October 1 to avoid interference with the scene and congestion.[23]

text: In the early morning of March 24, 2014, a Blue Line train derailed at O'Hare at the end of its run. Initial reports said that 32 passengers on the train were injured, but none of the injuries were considered life-threatening.[24]  The station reopened on Sunday, March 30, 2014 at 2:00 p.m.[25]

text: Expansion[edit]

text: Line extensions[edit]

text: For the past twenty years, there had been talk of extending the O'Hare section of the Blue Line westward to Schaumburg, but this has recently been changed with the recent developments involving the planning of the Metra STAR Line and various other transportation projects.

text: However, in 2008, the Regional Transit Authority revealed a plan to possibly expand commuter rail and bus service to the RTA board, which included a 13.3 miles (21.4 km) extension of the Blue Line on an east-west route from its current western terminus at Forest Park to as far west as the Yorktown shopping center in DuPage County. Several feeder bus routes would also be implemented along the route in order to supplement ridership and increase usefulness. The prospect of this extension was also listed in the Chicago region's 2030 long-term master plan.[26]

text: In early 2013, the idea of an infill station at Nagle and Bryn Mawr Avenues was declined. For now such a station is strictly an idea but it may come to existence in the future since that particular stretch of the line between Jefferson Park and Harlem is the second longest on the 'L' system without a station (behind the gap on the Yellow Line between Oakton-Skokie and Howard).[27]

text: Extra tracks[edit]

text: The surface right-of-way for the Congress Branch, including overcrossings, undergrade bridges and two short tunnels under the expressway, contains space for one extra track between Forest Park and Kenton Avenue and two extra tracks from Kenton to the tunnel portals at UIC-Halsted. It was intended that the interurban Chicago Aurora and Elgin Railroad, which had utilized the Garfield Park Elevated until 1953 to reach its Loop terminal at Wells Street, would use these extra tracks. However, the CA&E ceased passenger service abruptly on July 3, 1957, never to resume, before track construction had started.[28] The CTA also considered plans of its own to add these as express tracks (and service) over the years, as well as a rerouting of the Lake Elevated onto the Paulina Elevated (today's Pink Line) into a new quadrant of the junction with the Douglas Line at Racine, but these plans also never came to existence.[29]

text: Stub tunnels[edit]

text: The dual portals of the Congress Branch at UIC-Halsted are actually quadruple; two extra portals also exist to the north of the Blue Line portals, which extend only a few hundred feet beyond the portals. These were intended to accommodate future expansion, including a new CA&E line to a new terminal, or for a variety of later CTA new line proposals which were never realized.[30] Among those plans were a loop subway system via Congress, Dearborn, Lake, and Clinton when the Milwaukee-Dearborn-Congress Subway was completed between 1951–1958; a shuttle subway route under Jackson Street to Grant Park (1958 New Horizons for Chicago Metropolitan Area, CTA); and more recently between 1968-1978 in the form the Distributor Subway system which was to be routed from UIC-Halsted Station through the north portals, then north under Desplaines Street to Monroe Street and east under Monroe Street to Grant and Millennium Park where it was to split into two branches: one north to Walton Street serving the North Michigan Avenue area and the other southeast to McCormick Place utilizing Metra Electric right-of-way. Though these portals are still not used, the Monroe Street Distributor Subway was never "officially" cancelled when the Crosstown and Loop Subway projects were deferred in 1979. It remains to this day an active program.

text: Between Grand/Milwaukee and Clark/Lake in the Milwaukee-Dearborn Subway, two more stub tunnels also exist, continuing straight while the current Blue Line heads in the northwest direction. This junction (actually a stacked junction), built in the 1940s along with the subway, was intended for a never-built connection to, or subway replacement of the Lake Street Elevated.[31] In the late 1960s through the mid-1970s, they were also proposed to be a service link between the Dearborn Subway and a high-speed subway route in Randolph Street to replace a portion of the Lake Street 'L' east of Damen Avenue (Transit Planning Study Chicago Central Area, April 1968).

text: Station listing[edit]

text:
Blue Line (O'Hare branch)

Station

Location

Points of interest and notes

O'Hare

1000 O'Hare Drive, Chicago

O'Hare International Airport

Rosemont

5801 N River Road, Rosemont

Rosemont, Des Plaines, Allstate Arena, Donald E. Stephens Convention Center, All Saints and St. Nicholas Cemeteries, Rivers Casino

Cumberland

5800 N. Cumberland Avenue, Chicago

Park Ridge, Niles

Harlem

5550 N. Harlem Avenue, Chicago

Norwood Park, Harlem Irving Plaza

Jefferson Park

4917 N. Milwaukee Avenue, Chicago

Jefferson Park, Gateway Theatre, Northwestern Business College, Transfer to Metra Union Pacific Northwest Line

Montrose

4600 W. Montrose Avenue, Chicago

Mayfair, Six Corners, Mayfair Pumping Station, Irish American Heritage Center, Transfer to Metra Milwaukee District North Line at Mayfair (Metra)

Irving Park

4131 W. Irving Park Road, Chicago

Irving Park, The Villa District, Transfer to Metra Union Pacific Northwest Line

Addison

3622 W. Addison Street, Chicago

Avondale, St. Wenceslaus, The Villa District

Belmont

3355 W. Belmont Avenue, Chicago

Avondale, St. Hyacinth Basilica

Logan Square

2620 N. Kedzie Avenue, Chicago

Logan Square, Illinois Centennial Monument, Logan Theatre

California

2211 N. California Avenue, Chicago

Congress Theater

Western

1909 N. Western Avenue, Chicago

Bucktown, All Saints Polish National Catholic Cathedral, St. Hedwig's Roman Catholic Church, Margie's Candies, Pulaski International School of Chicago

Damen

1558 N. Damen Avenue, Chicago

Bucktown, Wicker Park, Northwest Tower, St. Mary of the Angels Roman Catholic Church

Blue Line (Milwaukee-Dearborn Subway)

Station

Location

Points of interest and notes

Division

1200 N. Milwaukee Avenue, Chicago

Polonia Triangle, Wicker Park, Chopin Theatre, Holy Trinity Polish Mission, St. Stanislaus Kostka Noble Square

Chicago

800 N. Milwaukee Avenue, Chicago

St. John Cantius

Grand

502 N. Milwaukee Avenue, Chicago

Closed February 9, 1992; Reopened June 25, 1999

Clark/Lake

124 W. Lake Street, Chicago

James R. Thompson Center, Richard J. Daley Center, Chicago City Hall,
Transfer station for Orange, Green, Purple, Brown, and Pink Lines

Washington

127 N. Dearborn Street, Chicago

Richard J. Daley Center, Chicago Picasso, Cook County Administration Building, Goodman Theatre, WBBM-TV, Chicago Public Schools central office
Transfer station for the Red Line via the Pedway (as of May 19, 2013)

Monroe

30 S. Dearborn Street, Chicago

Inland Steel Building

Jackson

312 S. Dearborn Street, Chicago

Kluczynski Federal Building, Flamingo, Harold Washington Library Center, Everett McKinley Dirksen United States Courthouse
Transfer station for Red, Brown, Orange, Pink and Purple Lines via Harold Washington Library – State/Van Buren

LaSalle

150 W. Congress Parkway, Chicago

Metropolitan Correctional Center, LaSalle Street Station, Chicago Stock Exchange

Clinton

426 S. Clinton Street, Chicago

Union Station, Greyhound Terminal, Old Chicago Main Post Office

Blue Line (Forest Park "Congress" branch)

Station

Location

Points of interest and notes

UIC–Halsted

430 S. Halsted Street, Chicago

University of Illinois at Chicago, Greektown, St. Ignatius Historic landmark, Terminal during weekday rush hours

Racine

430 S. Racine Avenue, Chicago

UIC Pavilion, Little Italy, Whitney M. Young Magnet High School, Chicago Sun-Times Former transfer station for Forest Park and 54th/Cermak bound trains

Illinois Medical District

430 S. Damen Avenue, Chicago

Illinois Medical District, United Center- Home of the Chicago Bulls and the Chicago Blackhawks, Malcolm X College, Cook County Hospital, Jesse Brown VA Medical Center

Western

430 S. Western Avenue

Crane Tech Prep High School

California

430 S. California Avenue, Chicago

Closed September 2, 1973

Kedzie–Homan

530 S. Kedzie Avenue, Chicago

Our Lady of Sorrows Basilica, Former Sears, Roebuck and Company Headquarters, John Marshall Metropolitan High School

Pulaski

530 S. Pulaski Road, Chicago

Chicago Public Library Legler Branch

Kostner

530 S. Kostner Avenue

Closed September 2, 1973

Cicero

720 S. Cicero Avenue, Chicago

Central

720 S. Central Avenue, Chicago

Closed September 2, 1973

Austin

1050 S. Austin Boulevard, Oak Park

Columbus Park

Oak Park

950 S. Oak Park Avenue, Oak Park

Oak Park, Oak Park Conservatory

Harlem

701 S. Harlem Avenue, Forest Park

Ferrara Pan Candy Company

Forest Park

711 S. Desplaines Avenue, Forest Park

Forest Park, Forest Home Cemetery, Forest Park Public Library


document_title: List of The 100 characters

question_text: who plays maya's dad in the 100

question_tokens: who plays maya 's dad in the 100

root

text: List of The 100 characters

text: Characters[edit]

text: Sky people[edit]

text: Sky people (Also known as arkers, or "skaikru" in Trigedasleng) is a term used by the grounders to describe a person who came from the international space station known as The Ark. The sky people alive today are descendants of humans who survived the nuclear apocalypse 97 years before the show by living in space in the Ark. Within the sky people community, there is a subgroup known as The 100 (also known as the delinquents), a term used to describe one hundred juvenile delinquents who, after it became clear that the Ark was dying, were sent to Earth in order to determine if the planet had become habitable enough for the rest of the sky people to survive in exchange for being pardoned of their crimes. However, the name "The 100" is slightly a misnomer, since, along with the aforementioned hundred delinquents, there were also two additional young adults who came with them to Earth; one was a security guard who snuck aboard their ship to ensure the safety of his sister, and the other was a young engineer who came down to Earth in a pod shortly afterward to reassure the council that the delinquents survived their journey.

tag: p

text: Grounders[edit]

text: The "grounders" (or "outsiders", as they are known by the mountain men) is a term to describe a group of people who were born on Earth rather than in space or in Mount Weather. The grounders alive today are descendants of humans who survived the nuclear apocalypse 97 years ago due to their enhanced tolerance to nuclear radiation. Many of the sky people have negative views toward grounders, who they see as barbaric stone-age savages, just like a lot of grounders have a negative view of The 100, who they see as selfish colonizers, though relations between the two groups are slowly improving over time. The grounders speak a language called "Trigedasleng" which is a composite of various old and modern languages merged into one, although some of them have a knowledge of English. Grounders were the primary antagonists of the first season. There are at least twelve grounder clans on Earth, including the woods clan (also known as the tree people, or "trikru" in Trigedasleng), ice nation (also known as "Azgeda" in Trigedasleng), and the boat people (also known as "Floukru" or "Floudon kru" in Trigedasleng).

text: Mountain men[edit]

text: Mountain men (or "Maunon" in Trigedasleng) is a term used by the sky people and the grounders to describe the small colony of people who resided in Mount Weather. The mountain men were descendants of humans who survived the nuclear apocalypse 97 years before the start of the series by bunkering down inside Mount Weather, protecting them from the radiation caused by the bombing, but also preventing them from developing an immunity to the radiation as the grounders did. This not only forced them to remain inside the facility unless they wore protective suits, they also had no choice but to capture grounders and harvest their blood, which they used for transfusions to survive even the small amount of radiation exposure they received inside Mount Weather. The mountain men are responsible for creating the acid fog that has killed numerous outsiders, as well as the barbaric Reapers who helped them capture grounders for their blood harvesting program. Because so many grounder and arker lives were lost in the name of the mountain men's survival, both groups hold very negative views toward those residing in Mount Weather, although some people within the mountain actively reject treatment with the stolen bone marrow for moral reasons. In the second series, while holding forty-seven of the 100 "prisoner", the mountain men discovered that a transfusion of bone marrow from the former Ark residents could grant them permanent immunity from the radiation, but the potentially fatal consequences of this transfusion on the Ark residents drive Clarke to a point where she is forced to open the air filtration system of the mountain, killing every one of the Mountain Men in order to save her own people.

text: Main cast[edit]

text:
Character
Actor
Affiliation
Seasons

1
2
3
4

Clarke Griffin
Eliza Taylor
100 / Skaikru
Main

Abby Griffin
Paige Turco
Skaikru
Main

Finn Collins
Thomas McDonell
100 / Skaikru
Main

Wells Jaha
Eli Goree
100 / Skaikru
Main
Guest

Bellamy Blake
Bob Morley
100 / Skaikru
Main

Octavia Blake
Marie Avgeropoulos
100 / Skaikru
Main

Cece Cartwig
Kelly Hu
The Ark
Main[a]

Monty Green
Christopher Larkin
100 / Skaikru
Main

Jasper Jordan
Devon Bostick
100 / Skaikru
Main

Thelonious Jaha
Isaiah Washington
Skaikru
Main

Marcus Kane
Henry Ian Cusick
Skaikru
Main

Raven Reyes
Lindsey Morgan
Skaikru
Recurring
Main

Lincoln
Ricky Whittle
Grounders / Skaikru
Recurring
Main

John Murphy
Richard Harmon
100 / Skaikru
Recurring
Main

Roan
Zach McGowan
Grounders

Recurring
Main

tag: table

text: Jump up ^ Kelly Hu was credited as main cast only in the first episode.

tag: ol

text: Clarke Griffin[edit]

text: Portrayed by Eliza Taylor, Clarke Griffin[5] is the daughter of Dr. Abigail Griffin and Jake Griffin, and the leader of the 100. She was imprisoned as an accessory to the crimes of her father after attempting to inform their people that the Ark was dying. Down on the ground, she tries to ensure the 100's survival by assisting in the acquisition of food and resources, and she also continuously serves as their main medic before her mother and the other medical staff join them on Earth. She is portrayed as relatively benevolent, but has been shown to act ruthlessly to fight or kill in order to protect her people if there are no other options, and she possesses natural leadership qualities. Clarke has become gradually hardened and matured by her experiences on Earth, namely the acts she has been forced to commit to survive. This has transformed her into a strong heroine in the series as she continues to struggle to reunify humankind by maintaining the peace between the arkers and the grounders. On February 28, 2015, show creator Jason Rothenberg confirmed that Clarke is bisexual; this makes her the first openly bisexual lead character on the CW network .[7]

text: Abby Griffin[edit]

text: Portrayed by Paige Turco, Abigail "Abby" Griffin is Clarke's mother.[5] She is the chief medical officer of the Ark and the main proponent regarding the habitable status of Earth. Her husband was the chief engineer, Jake Griffin. She was a member of the Council led by Chancellor Jaha on the Ark before being stripped of her title, though she regained this position shortly afterward. Upon her arrival on Earth, Abby was Chancellor for a time when Marcus Kane gave her his pin. During this time she ruled autocratically, refusing to let Kane take over again on his return and betraying her former friend Jaha by putting him in prison. Abby becomes friends with Raven Reyes when she needs her mechanical expertise to try to get more information on what the 100 is dealing with on the ground. She begins to like the young engineer due to her reminding her of Clarke. Abby's relationship with her daughter became strained following Clarke's discovery of her mother's betrayal to her father which led to his execution. It only became more complicated once Abby and the rest of the people from the Ark joined the 100 on Earth, as they were both the leaders of their respective groups of people. Abby continues to work as the resident doctor in the newly established sky people colony known as Arkadia (formally Camp Jaha) and has supported Marcus Kane's campaign for peaceful cohabitation with the grounders, putting her at odds with the anti-grounder factions within their people.

text: Finn Collins[edit]

text: Portrayed by Thomas McDonell, Finn Collins (seasons 1–2)[5] is a caring teenager who is always looking for fun and a peaceful solution. He is more interested in helping others than seeking vengeance. He was arrested for being a spacewalker and wasting the Ark's limited oxygen supply, but it was revealed that he was innocent and had taken the fall for Raven, his girlfriend, to ensure she didn't ruin her engineering career or get floated. Originally Clarke's love interest, Finn's relationship with Clarke starts collapsing when she discovers his relationship with Raven. His romances with both girls ultimately end, but Finn and Clarke still love each other, and Raven still loves Finn. In season two, his fear that Clarke has been killed by her captors in addition to the hardships he has endured cause him to become unpredictable and violent. He murders eighteen unarmed grounders who he believed had taken Clarke hostage, and his was willingly going to leave several fellow arkers for dead in favor of continuing his search for her. As a result of his actions, the grounders demanded retribution before they will agree to a truce between them and the sky people, leading Commander Lexa to sentence Finn to death by a thousand cuts. However, he was mercifully killed by Clarke to prevent the grounders from slowly and painfully killing him, though he did appear one last time during Clarke's grief-induced hallucinations.

text: Wells Jaha[edit]

text: Portrayed by Eli Goree, Wells Jaha (season 1; guest, season 2)[5] was Clarke's childhood best friend and the son of Thelonious Jaha, who was the Ark's Chancellor at the start of the series. He is despised by some of the 100 upon landing on the ground because of his father. He intentionally committed a crime when he found out about the imminent launch of the delinquents to Earth so as to join the group in the hope to protect Clarke, for whom he harbors feelings. Clarke believed he was the reason her father is dead, only to find out later that her mother was the one who betrayed her father, and Wells willingly took the blame to prevent Clarke from hating her. On the ground, he is hardworking and thoughtful, volunteering to dig graves and collect rainwater to aid their newly established colony. It was his expert knowledge of botany that made him a valuable ally to Clarke, as she was tasked as the 100's medic due to her previous experience as the daughter of a doctor and needed herbal medicines to treat the ill and injured members of their community. He was murdered by Charlotte in the third episode, who wanted retribution for his father's execution of her parents on the Ark. He appears once again in season two, when a hypoxic Thelonious hallucinates that Wells is alive and with him on the Ark, when everyone else has left for the surface.

text: Octavia Blake[edit]

text: Portrayed by Marie Avgeropoulos (and by Olivia Steele Falconer as child) Octavia Blake[5] is Bellamy's younger sister – a rare relationship given the Ark's one-child rule. She was kept a secret by her family, living under the floor to avoid detection by authorities, but was eventually caught when Bellamy sneaked her out of her room to attend a masked ball. Once discovered, some of the detainees discriminate against her for being a second child and thus an outcast to the Ark's dystopian society. She is a fiercely independent girl who is constantly rebelling and getting attention from men, most notably the grounder Lincoln. However, just like Clarke, she is not exactly built for war so she is horrified at what she sees and experiences at first. In season two, she becomes more immersed in grounder culture and serves as Indra's second. Originally she felt hatred towards Clarke for being the daughter of someone in the same council who had her locked up. It is intensified when she discovers Clarke knew about the bombing of Tondc, did nothing about it, and allowed all those grounders to die after the events of Mount Weather (even telling Indra that she won't leave behind Bellamy and her friends). She remains in her grounder gear, and berates Lincoln for wearing an Ark jacket and for being naive as she still holds a grudge towards them. Eventually, Lincoln is brutally killed in front of her by Pike, causing a rift between her and Bellamy, In season 4 she shows more signs of being bloodthirsty after killing an ambassador who questions Roan's leadership, this new violent attitude granted her the nickname "Skairippa", after refusing to kill Illian and getting close with him she decides to drop the act and take him home, she later accepts the fact that she's a killer and will fight the grounder war for the bunker alongside Trikru, in which she's victorious after killing Luna, and becoming the acting commander of Trikru and Azgeda by telling them they will share the Bunker. She finally forgives Bellamy for Lincoln's death after he opened the bunker realizing that he would put his own life in danger just to save her and the grounders, she later protects Nilyah and further solidified her role as commander by saying if Skaikru doesn't choose the 100 people to stay in the bunker then she will kill every Skaikru member, in the finale she officially becomes Heda of the new grounder tribe consisting of Skaikru, Trikru and Azgeda regardless of her blood and what's in her head.

text: Bellamy Blake[edit]

text: Portrayed by Bob Morley, Bellamy Blake is Octavia's brother.[5] He professes a strong determination to protect his sister, spanning from her birth. He often says 'my sister, my responsibility'. He was the leader of the 100, although often loses focus and control over the group, and uses militaristic approaches. He develops from an antagonistic character to an antihero, realizing the 100 matter to him and showing compassion towards enemies and fallen comrades.

text: He initially clashes with Clarke over their opposing approaches to their respective responsibilities over their people, but ultimately both he and Clarke develop a mutual respect and learn to compromise for each other's methods. He still feels guilty for getting Octavia caught, which led to her lockup and his mother's death.

text: In the third season, he aligns himself with the new Chancellor after a grounder clan bombed Mount Weather, killing 49 people, including his girlfriend. In the process he betrays Marcus Kane and put the whole of The Ark at risk of death. The bombing was made possible because Bellamy trusted Echo, the grounder he saved in the previous season in Mount Weather, and listened to the false information she delivered. He helps to put in prison his sister's boyfriend Lincoln, which leads to Lincoln's execution. After Pike's election, Bellamy is one of the nine guards (along with Pike himself) that carry out the chancellor's orders to kill the 299 grounder warriors sent by Lexa.

text: Cece Cartwig[edit]

text: Portrayed by Kelly Hu, Callie "Cece" Cartwig (season 1)[5] is the best friend of Abigail Griffin as well as the Ark's communications officer. Callie is first seen talking to the people on The Ark about the 100 going down to Earth. She said that she can't confirm or deny anything at the moment. When Callie comes to know that Abigail Griffin is going to be executed she goes up to Marcus Kane to tell him that he is out of his mind and he can't kill everyone who disagrees with him. Callie says that Abigail is her friend leaving Kane to reply that he can't do anything to stop it. Kane and Callie share a close moment. She tries to implore him to give Abby amnesty, asking him to think of their own relationship. He answers by saying that no matter what he feels, he can't. When its time, Callie breaks into tears walking with Abigail to the place where she will be executed, embracing her and refusing to let go even at the behest of the guards. Abby asks that Callie watch out for her daughter before she dies. When the door is about to close Chancellor Thelonious Jaha demands the execution be stopped immediately. Callie is thrilled for Abigail, able to hold her friend again. Jason Rothenberg revealed that Hu was dropped after the first episode due to budget reasons.[8]

text: Monty Green[edit]

text: Portrayed by Christopher Larkin, Monty Green[5] is a smart and tech-savvy teenager who is a valuable asset to the teenagers on Earth due to his pharmaceutical and engineering knowledge. He and Jasper were arrested for making illegal substances. He is best friends with Jasper and is among the 48 held in Mount Weather, eventually escapes and reunites with his mother in season three. He tries to help Jasper recover from the traumatic events in Mount Weather. He eventually becomes part of Chancellor Pike's cause after his friend Monroe is killed by the grounders. In the process he gets Marcus Kane put in prison and Lincoln killed. He eventually betrays his mother and Pike in "Stealing Fire" by helping Kane, Octavia, Harper, Miller and Sinclair escape by feeding members of the Ark Guard faulty intel and distracting them. In "Nevermore", Monty is forced to kill his mother—who had taken A.L.I.E.'s key—after she nearly kills Octavia. In "Red Sky At Morning", Monty has sex with Harper in Arkadia, and is forced to delete and essentially kill his mother for a second time by wiping her memory from the city of light, In season 4 he comes up with the idea of protecting his people by shielding Arkadia with a hydrogen generator and recruits Bellamy, Harper and Miller to gather it when they do they blow it up to rescue the slaves taken by the ice nation, there he learns that the Chief killed his father and instead of killing him himself he allowed the slaves vengeance by freeing them, After realizing Harper chose to stay behind in Arkadia he decides to stay with her until she changes her mind, she is eventually convinced and they search for more people to recruit.

text: Jasper Jordan[edit]

text: Portrayed by Devon Bostick, Jasper Jordan is a goofy and geeky chemist. He is Monty's best friend. After his capture and subsequent rescue from grounders, he becomes traumatized by his near-death experience which he struggles to overcome. Early in the series, he has a crush on Octavia, even saving her life during an animal attack, but she offers her friendship in return instead. He was one of the delinquents' camp's gunners and is among the 48 held in Mount Weather, and becomes an acting leader of his surviving people in Clarke's and Bellamy's absences. Jasper later becomes romantically involved with a Mount Weather resident, Maya who was later killed. In grief, Jasper becomes an alcoholic and he is disgusted that his own people would steal from Mount Weather after the war with its inhabitants as well as hating Clarke. Monty and Octavia struggle to help Jasper to cope with his loss, but although Jasper was briefly tempted by the city of light tablets, when he realised that they erased all good memories relating to painful topics, he refused to take one, even breaking Raven out of Camp Jaha and taking her to Clarke and other escapees for medical treatment to remove the chip. It is revealed that he has been chipped while on Luna's oil rig and turns on the 100 under A.L.I.E.'s command. He is freed from her control once she's defeated. In Season 4, he attempts suicide only for Raven to tell him they only have six months to live. He eventually dies from an overdose.

text: Thelonious Jaha[edit]

text: Portrayed by Isaiah Washington, Thelonious Jaha, commonly referred to as "Jaha"[5] is Wells' father and the former Chancellor of the Ark. Jaha, along with Marcus, were best friends with Jake Griffin and his family. However, his and Marcus' friendship with the Griffins deteriorates after Jake's death and Clarke's subsequent arrest but he manages to maintain his friendship with Abby. He loses his power while on Earth as he clashes with Abby and Marcus over their views on the grounders in addition to the unconfirmed destination, the "city of light". Along with Murphy, he leads a small group of his followers from Camp Jaha to find the city. Having discovered A.L.I.E., the A.I. that controls the city of light, Jaha has become the delegated leader of A.L.I.E.'s cult, manipulating others into joining to escape the pain of daily life. Jaha is unconcerned about the side-effects even when presented with clear evidence that the city of light erases even good memories to spare the users from psychological pain, such as Jaha having lost all memory of his son, he is soon freed from A.L.I.E.'s control after her defeat. He becomes guilt ridden after he sees all the casualties in Polis due to him feeding everyone a chip. In season 4 he assists Clarke in being a leader for her people such as suggesting they find shelter in a lost bunker, only to discover it couldn't hold out radiation. Jaha tells everyone that if they want to survive the second nuclear explosion they must earn a lottery pick to ensure they will be on that list. He eventually comes to the realization the bunker was a decoy and the real one is in Polis, the grounder capital, so he decides to recruit Gaia on what she knows about the symbol on the token and eventually learns it's a key to open the bunker. He eventually finds it and successfully opens it.

text: Marcus Kane[edit]

text: Portrayed by Henry Ian Cusick, Marcus Kane[5] is one of the Councillors on the Ark. When Thelonious Jaha was Chancellor, he was second-in-command. He, along with Jaha, were friends with Jake Griffin and his family, but his friendship with them did not last after Jake's execution and Clarke's subsequent arrest. Though he initially supports population culls to extend life on the Ark, when Earth is shown to be survivable, he is guilt-stricken and works with everyone to survive in hopes of making amends of his past misdeeds. This, in addition to his mother's influence and death, affect his later actions of seeking peaceful and compromising solutions when governing his people after arriving on Earth. In the process he gains allies who respect his new approaches, rebuilds his friendship with Jake's wife Abby Griffin, and earns the grounders commander Lexa's trust. Kane aligns himself with Abby, who becomes Jaha's successor.

text: Raven Reyes[edit]

text: Portrayed by Lindsey Morgan, Raven Reyes (Recurring, season 1; regular, season 2–) is an ambitious zero-gravity mechanic when on board the Ark who isn't afraid of anyone or anything. She later collaborates with Abby Griffin in her escape from the Ark and launches herself in a pod to Earth, and occasionally advises Abby in the fields in electronics and mechanical engineering after she becomes chancellor on Earth. Brave and intelligent, Raven leads the camp in setting up communications and making bombs. She was childhood friends with Finn and was in a relationship with him until he fell in love with Clarke. It is revealed in season two, that Finn took the blame for Raven's crime because she was already 18 and would be floated. She was the first zero G mech student under the age of 18 in 52 years. In season 3, with Abby's help, Raven begins recovering from the injuries she sustained from last season. She joins Jaha's cause after reluctantly taking a tablet given to her by him, she does begin to fight the side effects after Jasper reminds her about Finn. She is soon saved by Clarke and freed of A.L.I.E.'s control. In season 4, she bonds with Luna for her loss and convinces her to help save everyone on Earth, she also forgives Murphy for shooting her in the spine. It is revealed while taking the chip she is able to use 90% of her brain but developed a tumor that could cause her to have a stroke, possibly leading to her death. She later hallucinates Becca who tempts her with the chance to spacewalk leaving her to stay behind. A Sinclair hallucination appears to tell her to continue living which gives her the motavition to fight off Becca by restarting her heart. Afterwards, Clarke rescues her and request she fly them to The Ark in which she agrees to do, and successfully able to fly them to space and finally was able to spacewalk again.

text: Lincoln[edit]

text: Portrayed by Ricky Whittle, Lincoln (recurring, season 1; regular, season 2–3) is a grounder who rescues Octavia. The pair develop a romantic relationship, and Lincoln helps the 100 multiple times, causing him to be viewed as a traitor to his people. He later is drugged to become a reaper, but with Clarke's and Abby's assistance, he is successfully rehabilitated from the drug. Having been viewed as a traitor by some of his people, Lincoln resides in Camp Jaha with Octavia. He is put in prison by Pike with the help of Bellamy and shot by Pike after surrendering to save his fellow grounders from execution.

text: John Murphy[edit]

text: Portrayed by Richard Harmon, John Murphy (recurring, season 1–2; regular, season 3) starts out as one of Bellamy's men and is generally disliked by the group due to his reputation of being a troublemaker and career criminal, making him one of the few members to actually have committed felonies and not petty misdemeanors. After being wrongfully accused by Clarke and nearly lynched, he tries to kill Charlotte. As a result of her suicide, he is banished from the camp. He later returns, surviving being tortured by the grounders. He seems to have forgiven the 100, but he kills two and attempts to hang Bellamy and successfully shoots Raven in the spine. In season two, he helps the 100 as they search for their lost members, even saving Bellamy's life when he could have let him drop. As he is still disliked in Camp Jaha, he accompanies Jaha to find the city of light. He eventually finds a lighthouse where he is trapped by Jaha and A.L.I.E. after watching something that horrifies him. He later leaves the island after not wanting to be a part of Jaha's insane missions, and gets a boat ride from Emori. After Emori transports him and Jaha across the sea, he refuses to take the key and flees with Emori. They start robbing people in the Commander's Forrest and he is eventually captured by grounder warriors and brought to Polis, as one of the captors discovers a chip in his pocket which has the "Sacred Symbol of the Commander". He is tortured for information by Titus and eventually tells him what he knows. Later on, Titus tries to murder him and frame Clarke but accidentally shoots and kills Lexa. After she dies he witnesses Titus remove the chip. After Titus gives Clarke the chip and commits suicide, Ontari makes him the new "Flamekeeper" since he is the only other person to have witnessed it being removed from another person. Ontari takes a liking to him and wants him to sleep with her; if he refuses, she will kill him. He later reunites with Emori who is under A.L.I.E.'s control, and A.L.I.E. implies to her that Ontari's had sex with him. After the city of light is destroyed and A.L.I.E.'s control over everyone dissolves, Murphy stays behind with Emori. When he finds out there's a nuclear disaster coming which will wipe out everyone on Earth, he and Emori decide to side with Clarke, who has a plan that might save 100 people. Murphy ends up helping Raven with another plan, and he is confronted with what he's put her through after he shot her. When Raven opts to stay behind, he has a rare emotional moment and shares a tearful goodbye with her.

text: King Roan[edit]

text: Portrayed by Zach McGowan, King Roan (recurring season 3; regular season 4): An ice nation fugitive who is tempted by Lexa to kidnap Clarke. He is the son of Queen Nia, he later becomes King of the ice nation after Lexa kills Nia for attempting to overthrow her. He supports Ontari as the new Commander and attempts to track down Clarke who has escaped with the Flame. Roan and Clarke instead form an alliance to give Ontari the Flame to help shut down A.L.I.E. but the plan fails and Roan is shot by Kane. He is rescued when Clarke and Abby take the bullet out of his chest. Echo tries to tempt him to kill Clarke for her crimes as well as secure his position as ruler of the 13 clans. However, Clarke gives him A.L.I.E. 2 in hopes that he will let her and her people live to save the planet from the nuclear explosion in 6 months which he accepts. Later, he learns that Skaikru seems to be protecting themselves thus ending the alliance. Clarke convinces Roan to share Arkadia until it explodes. He is killed by Luna, who drowns him.

text: Recurring cast[edit]

text:
Character
Actor
Affiliation
Seasons

1
2
3
4

Eric Jackson
Sachin Sahel
Skaikru
Recurring

Costa
Jojo Ahenkorah
Skaikru
Recurring

Bree
Alyson Bath
100 / Skaikru
Guest

Recurring

Harper McIntyre
Chelsey Reist
100 / Skaikru
Recurring

Nathan Miller
Jarod Joseph
100 / Skaikru
Recurring

Anya
Dichen Lachman
Grounders
Recurring

Atom
Rhys Ward
100 / Skaikru
Recurring

Charlotte
Izabela Vidovic
100 / Skaikru
Recurring

Connor
Josh Ssettuba
100 / Skaikru
Recurring

Dax
Victor Zinck Jr.
100 / Skaikru
Recurring

Guest

Diana Sydney
Kate Vernon
The Ark
Recurring

Fox
Genevieve Buechner
100 / Skaikru
Recurring
Guest

Jacapo Sinclair
Alessandro Juliani
Skaikru
Recurring
Guest

Jake Griffin
Chris Browning
The Ark
Recurring

John Mbege
Aaron Miko
100 / Skaikru
Recurring

Guest

Jones
Shane Symons
100 / Skaikru
Recurring

Guest

Kyle Wick
Steve Talley
Skaikru
Recurring

Myles
Brendan Meyer
100 / Skaikru
Recurring

Roma
Celia Reid
100 / Skaikru
Recurring

Guest

Shumway
Terry Chen
The Ark
Recurring

Sterling
Keenan Tracey
100 / Skaikru
Recurring

Tristan
Joseph Gatt
Grounders
Recurring

Zoe Monroe
Katie Stuart
100 / Skaikru
Recurring

A.L.I.E./Becca
Erica Cerra
City of Light

Guest
Recurring

Artigas
Cameron Roberts
Grounders

Recurring

Byrne
Kendall Cross
Skaikru

Recurring

Cage Wallace
Johnny Whitworth
Mount Weather

Recurring

Carl Emerson
Toby Levins
Mount Weather

Recurring

Chris
James Neate
City of Light

Guest
Recurring

Dante Wallace
Raymond J. Barry
Mount Weather

Recurring

David Miller
Chris Shields
Skaikru

Recurring

Echo
Tasya Teles
Grounders

Recurring
Guest
Recurring

Emori
Luisa D'Oliveira
Grounders

Guest
Recurring

Gustus
Aleks Paunovic
Grounders

Recurring

Indra
Adina Porter
Grounders

Recurring

Lee
Nick Hunnings
Mount Weather

Recurring

Lexa
Alycia Debnam-Carey
Grounders

Recurring

Lorelei Tsing
Rekha Sharma
Mount Weather

Recurring

Maya Vie
Eve Harlow
Mount Weather

Recurring

Nyko
Ty Olsson
Grounders

Recurring

Otan
Mik Byskov
City of Light

Guest
Recurring

Vincent Vie
Ian Tracey
Mount Weather

Recurring

Aden
Cory Gruter-Andrew
Grounders

Recurring

Bryan
Jonathan Whitesell
Skaikru

Recurring
Guest

Charles Pike
Michael Beach
Skaikru

Recurring
Guest

Gideon
John DeSantis
City of Light

Recurring

Gina Martin
Leah Gibson
Skaikru

Recurring

Hannah Green
Donna Yamamoto
Skaikru

Recurring

Luna
Nadia Hilker
Grounders

Recurring

Nia
Brenda Strong
Grounders

Recurring

Niylah
Jessica Harmon
Grounders

Recurring

Ontari
Rhiannon Fish
Grounders

Recurring

Titus
Neil Sandilands
Grounders

Recurring

Gaia
Tati Gabrielle
Grounders

Recurring

Ilian
Chai Romruen
Grounders

Recurring

Riley
Ben Sullivan
Skaikru

Recurring

text: The 100[edit]

text:
Jarod Joseph as Nathan Miller (season 1–): One of the 100. He was among the surviving 47 held in Mount Weather in season two. While in Mount Weather, it is revealed that Miller was arrested on the Ark for thievery. He is able to escape Mount Weather and is reunited with his father at the end of season two, who was the head security guard on the Ark. In the first episode of season three, Miller is reacquainted with Bryan, his boyfriend. He becomes a member of Arkadia's Guard but secretly sided with Kane alongside Harper as they tried to overthrow Chancellor Pike. He is one of the few Skaikru members who didn't take A.L.I.E.'s chip to join the city of light, and survives the battle in Polis in the season's finale.
Chelsey Reist as Harper McIntyre (season 1–): One of the 100. She had a crush on Jasper at the beginning of season one, although it ended up going nowhere. She is among the 47 held in Mount Weather in season two, and was the first to have her bone marrow forcibly extracted from her. She and Monty are the only two who survived having their bone marrow extracted. After escaping and returning to Arkadia, she joins Arkadia's Guard and secretly sides with Kane alongside Miller as they tried to overthrow Chancellor Pike. She is one of the few members of Skaikru who didn't take A.L.I.E.'s chip to join the city of light. She sleeps with Monty in season three, and is saved by him in the season finale when a chipped Jasper knocks her unconscious and takes her hostage in Arkadia, In season 4 after feeling she sacrificed one of her own for her own survival she decides stay behind with Jasper and Monty. She eventually comes to her senses and goes with Monty to recruit as many people to join them in the bunker.
Katie Stuart as Zoe Monroe (seasons 1–3): One of the 100 who suffocated to death in a grounder village after escaping a fire in season three.
Keenan Tracey as Sterling (seasons 1–2): One of the 100. He fell to his death trying to rescue his friend Mel, who was the sole survivor when her section of the Ark crash-landed.
Genevieve Buechner as Fox (seasons 1–2): One of the 100. She is among the 47 held in Mount Weather. She was nearly killed for her bone marrow in Mount Weather, but Bellamy saves her. She is killed shortly after anyway for her bone marrow.
Rhys Ward as Atom (season 1): One of the 100 who was an adviser to Bellamy and became romantically involved with Octavia. He was severely burned by the acid fog and Clarke killed him out of mercy.
Izabela Vidovic as Charlotte (season 1): One of the youngest members of the 100, who was arrested for attacking a guard. She has recurring nightmares about Chancellor Jaha executing her parents. She attempts to stifle the nightmares by killing his son, Wells, but later breaks down and confesses before jumping off a cliff to her death. Despite murdering her best friend, Clarke chose to protect Charlotte from the more aggressive members of the group who wished to kill to her, and banished Murphy because of her death.
Brendan Meyer as Myles (season 1): One of the 100, who was killed by John Murphy for his part in the attempted lynching against Murphy.
Josh Ssettuba as Connor (season 1): One of the 100, who was killed by John Murphy for his part in the attempted lynching against Murphy.

tag: ul

text: The Ark/Arkadia/Skaikru[edit]

text:
Sachin Sahel as Doctor Eric Jackson (season 1–): Abby's helper and confidant. In season 3, he is taken over by A.L.I.E.. He is freed from A.L.I.E.'s control once Clarke defeats her.
Alessandro Juliani as Sinclair (seasons 1–3): a technician who was a father figure and mentor to Raven. He was later killed in season 3 by Emerson.
Steve Talley as Kyle Wick (seasons 1–2): An engineer who was a coworker of Raven back on the ark. They later engage in a relationship. He also became friends with Marcus Kane after he saved him. It is mentioned in Season 3 that he and Raven have broken up.
Chris Browning as Jake Griffin (season 1): Abby's husband and Clarke's father who died prior to the beginning of the series. He was executed for attempting to release critical information regarding the Ark's swiftly deteriorating life-support systems; Clarke initially blamed Wells for telling his father, before learning that her mother was responsible and Wells took responsibility to save her relationship with her mother. Clarke was accused of assisting in his crime.
Terry Chen as Commander Shumway (season 1): Loyal to Diana Sydney. His plan to have Bellamy assassinate Jaha is later revealed, and Shumway is killed on Diana's orders.
Kate Vernon as Diana Sydney (season 1): A former Chancellor of the Ark. After Abby Griffin is stripped of her council seat, it is given to Diana. She and her team steal and launch the Exodus ship to Earth, Diana painting herself as a voice of the 'lower classes' who would otherwise not be given the chance to return to Earth as the Ark's resources are depleted. The ship crash lands and she is killed upon impact along with her accomplices. It is later revealed that Mount Weather caused the Exodus ship to crash.
Kendall Cross, as Major Byrne (season 2): Captain of Marcus Kane's guard at Camp Jaha. She is killed by a mutated species of carnivorous ape.
Michael Beach as Charles Pike (season 3): An Ark survivor from Farm Station. On the Ark he was a teacher, but on Earth he is a leader in the guard and later the chancellor of Arkadia. He is captured and sent to be executed for his crimes against the grounders. In the season finale, after assisting in defeating A.L.I.E., he is stabbed to death by Octavia, who wanted to avenge Lincoln's death.
Jonathan Whitesell as Bryan (season 3–): The boyfriend of Nathan Miller from Farm Station. He is one of the few Skaikru members who didn't take A.L.I.E.'s chip to join the city of light, and survives the battle in Polis in the season's finale.
Donna Yamamoto as Hannah Green (season 3): Mother of Monty and an Ark survivor from Farm Station, she is under A.L.I.E.'s control and shot by Monty while trying to rescue Octavia.

text: Grounders[edit]

text: Trikru (Tree people)[edit]

text:
Alycia Debnam-Carey as Lexa (seasons 2–3): The Commander of the allied grounder clans. She is willing to negotiate with the people of the Ark so they can save their people in Mount Weather and agrees to an alliance once Finn is dead. She views love as a weakness, and revealed that she previously had a girlfriend named Costia who was killed by the ice nation. Despite this, she allowed the ice nation into her coalition. She develops romantic feelings for Clarke, however after a kiss, betrays her and Skaikru to save the imprisoned grounders from the mountain men. She later sends Roan to find Clarke and bring her to Polis. She swears loyalty to Clarke after Skaikru are initiated as the thirteenth clan. Clarke goes to Lexa to say goodbye, where they confess their feelings for each other. Soon after, she is killed when she rushes into Clarke's room after hearing gunshots, only to get caught in Titus's crossfire. She returns via A.L.I.E. 2 to assist Clarke in defeating A.L.I.E. and says goodbye to her to help fight off A.L.I.E.'s henchmen so Clarke can find the kill switch.
Dichen Lachman as Anya (seasons 1–2): The leader of one of the grounder clans, and the main antagonist of the first season. Despite Clarke's awkward attempts to negotiate peace with her, she was killed by the guards of Camp Jaha after they both escaped from Mount Weather because the guards thought she was a threat.
Joseph Gatt as Tristan (seasons 1–2): A military leader of the grounders. He led the attack on the 100 and was killed by Kane in season two after surviving the ring of fire.
Adina Porter as Indra (season 1–): A leader of one of the grounder clans who considers Lincoln a traitor to her people. In season two she appoints Octavia as her second after being impressed by her bravery. In season four it is revealed she had a daughter named Gaia who refused to follow her mother's cause and learned to be a flamekeeper.
Ty Olsson as Nyko (seasons 2–4): A healer of the grounders and considered Lincoln's brother because of their true friendship. He is killed by a drone who guns him down while trying to protect Luna.
Jessica Harmon as Niylah (season 3–): A grounder who helps Clarke to escape the ice nation, and who later sleeps with her. Later, she helps Clarke to free Raven of A.L.I.E.'s control. Clarke thanks her and tells her to hide the time that A.L.I.E. is defeated. After A.L.I.E.'s defeat by Clarke, Niylah comes to Arkadia, but it was destroyed soon after by Ilian, who blames Skaikru for the death of his family killed by him while under A.L.I.E.'s control. However Ilian saves Octavia and Niylah from the resultant inferno, and Clarke resumes her relationship with Niylah and persuades her to remain in Arkadia. Later, Niylah goes with Clarke in The Second Bunker to be in safety. During the time where Clarke leads a group to save Raven, Niylah is attacked by some Sky People but is saved by Octavia who takes her on her protection.
Neil Sandilands as Titus (season 3); An Old Guard who serves as an advisor to Lexa. His official position is as the Flamekeeper until he passes the title on to Clarke. He kills himself in order to prevent Ontari from becoming the new commander.
Cory Gruter-Andrew as Aden (season 3); A Nightblood trained by Lexa. Aden is seen as polite and genuine when he speaks with Clarke about what should happen if he becomes Heda. He seems to care about Lexa, as seen in Watch the Thrones as he corrects her when she asks him to tell Clarke what will happen when he becomes Heda, Aden responds saying if he becomes Heda. He is killed by Ontari in his sleep.

text: Azgeda (Ice nation)[edit]

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Tasya Teles as Echo (season 2–): An ice nation grounder who was trapped at Mount Weather. She saves Bellamy's life, which leads him to trust her and he helps her escape. She later betrays him and helps act out a plan that led to the destruction of Mount Weather. After the events in the city of light she blames Skaikru for all the casualties and demands for Clarke's execution. She becomes a royal guard and the bodyguard of Roan, but is banished for her interference in the grounder war. She assists Octavia in trying to open the bunker, but Octavia will only help Azgeda and not her, as she is still angry about all the torment she put her through. She fights off grounders who tried to kill Clarke and provides protection onward in exchange for her safety when the death wave hits.
Brenda Strong as Queen Nia (season 3): The former Queen of the ice nation who killed Costia (former lover of Lexa) and attempted to overthrow Lexa, but was murdered at her hand.
Rhiannon Fish as Ontari (season 3); a nightblood who served as the bodyguard for Queen Nia and later King Roan of ice nation. She succeeded Lexa as the new Commander after murdering the other nightbloods. Due to her brutal nature Titus is hesitant to implant her with the Flame, which is actually an A.I. implanted in all commanders, and gives it to Clarke who escapes Polis. Due to the requirement of having the Flame implanted to be commander, Ontari conceals this from the grounder ambassadors with only Roan and Murphy aware of the truth. Later on she seduces Murphy to sleep with her under threat. Afterwards she takes the chip given to her by Jaha in the hope that it will grant the knowledge of the past commanders. Later A.L.I.E. decides that she cannot risk losing control of Ontari, the last of the nightbloods, and orders Jaha to kill her. Though she survives, Ontari suffers brain damage and is unable to accept the Flame. Instead she is used as part of a blood transfusion directly with her heart to allow Clarke to accept the Flame. She dies soon after Clarke destroys A.L.I.E., once Murphy stopped pumping her heart.

text: Other[edit]

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Luisa D'Oliveira as Emori (season 2–); A nomadic grounder who scours the wastelands in search of the city of light. Emori and her brother later rob Jaha and his group for their supplies, and later meets up with Jaha and Murphy at the city of light. When she returns to see Murphy, it is revealed that she is under A.L.I.E.'s control. She is freed from A.L.I.E.'s control once Clarke destroys A.L.I.E. and reunited with Murphy.
Chai Hansen as Ilian (season 4); a grounder who killed his family while under A.L.I.E.'s control, for which he blames Skaikru. He destroys Arkadia, though avoiding actually killing anyone, to the point of saving Octavia and Niylah from the conflagration. He is shot in the throat by Echo and mercifully killed by Octavia in the grounder war.

text: Mount Weather[edit]

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Raymond J. Barry as Dante Wallace (season 2): The leader and president of the Mount Weather colony, who favours more diplomatic attempts to use the blood of the 100 to cure his peoples' own vulnerability to radiation. He is eventually ousted from his leadership role. He is killed when Clarke shoots him in the chest.
Eve Harlow as Maya Vie (season 2): A resident at Mount Weather who develops romantic feelings toward Jasper. Though initially unaware of Mount Weather's true intentions, she eventually realizes what is going on and assists Bellamy in his attempt to rescue the 47. She eventually joins a rebel faction of her people in hopes of overthrowing the Mount Weather government and helping Jasper. While trying to help Octavia, she is killed when Clarke releases radiation on the fifth floor.
Rekha Sharma as "Dr. Lorelei Tsing[9] (season 2): One of the doctors at the Mount Weather colony. She uses the 47 to extract their bone marrow in order to get to the ground with no remorse. She is killed when Bellamy exposes her and several guards to radiation, and when she tries to escape via an elevator; Jasper, Monty, Miller, and Harper stop her from escaping and watch her die.
Johnny Whitworth as Cage Wallace (season 2): The son of Dante Wallace, and the main antagonist of the second season. He works on the Cerberus Project and plans to kill the 47 to save himself and everyone else. He later betrays his father when he tries to release the 47. When his people are dying of radiation, Lincoln cuts of his hand and injects him with the Cerberus Serum, killing him.
Ian Tracey as Vincent Vie (season 2): Maya's father who is with her on assisting the 47 and leads a rebel faction. He is killed by one of the Mount Weather guards.
Toby Levins as Carl Emerson (seasons 2–3): A Mount Weather guard. He is captured by Clarke for information on Mount Weather but is sent back to tell Cage that she and the grounders are coming. He is the sole surviving resident of Mount Weather, after Clarke and Bellamy irradiate the fortress and kill the rest of the mountain men to save the captive arkers. He aligns himself with the ice nation and provides the kill codes used to blow up Mount Weather. After Roan becomes King, Emerson is given to Clarke and Lexa as a peace offering. After long consideration Clarke spares him to show the other grounders vengeance is not the answer. He returns to seek vengeance against Clarke and her friends, but is killed by Clarke with the A.L.I.E. 2 chip.

text: City of light[edit]

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Erica Cerra as A.L.I.E. / Becca (seasons 2–4); The avatar of an artificial intelligence who guides Jaha and Murphy to the city of light and is the main antagonist of the third season. A.L.I.E. is responsible for causing the nuclear apocalypse 97 years ago. She was created by Becca, who returns to Earth to help other survivors, and became the very first Commander. As A.L.I.E. she uses chips to tempt others into doing her bidding such as Jaha wanting to lead his people, Raven wanting to stop feeling pain, and Ontari wanting to know the knowledge of previous commanders. She also tends to physically and psychologically harm them if they disobey. She is destroyed by Clarke once she pulls the kill switch on her, not before pleading to Clarke to reconsider. She appears briefly in flashbacks at the beginning of season four. Becca makes an appearance in Raven's hallucinations.
James Neate as Chris (seasons 2–3); One of the few who helped create A.L.I.E.