List of ''The 100'' characters

Main cast of The 100, from left to right: Thomas McDonell (Finn), Eliza Taylor (Clarke), Bob Morley (Bellamy), Devon Bostick (Jasper), Marie Avgeropoulos (Octavia), Lindsey Morgan (Raven), Ricky Whittle (Lincoln), Christopher Larkin (Monty), Paige Turco (Abby), Isaiah Washington (Jaha) and Henry Ian Cusick (Kane)

The 100 (pronounced The Hundred ^[1]) is an American post-apocalyptic drama television series that premiered on The CW during the 2013–14 American television season.^[2][3][4] The series is based on a book of the same name, the first in a series by Kass Morgan, and developed by Jason Rothenberg.^[5] The show premiered on Wednesday, March 19, 2014.^[6]

The following is a list of characters that have appeared on the television series. Although some are named for, or based upon characters from Kass Morgan's The 100 series, there are others created solely for the television series.

Characters

Sky people

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.

Grounders

The "grounders" (or "outsiders", as they are known by the mountain men or tricru) 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" or "Azgedakru" in Trigedasleng), and the boat people (also known as "Floukru" or "Floudon kru" in Trigedasleng).

Mountain men

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.

Main cast

Notes

Clarke Griffin

Eliza Taylor portrays the role of Clarke.

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]

Abby Griffin

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.

Finn Collins

Thomas McDonell portrays the role of Finn.

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.

Wells Jaha

Eli Goree portrays the role of Wells.

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.

Octavia Blake

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.

Bellamy Blake

Bob Morley portrays the role of Bellamy.

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.

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.

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 who saved his life in the previous season, 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.

Cece Cartwig

Kelly Hu

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]

Monty Green

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.

Jasper Jordan

Devon Bostick portrays the role of Jasper.

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.

Thelonious Jaha

Isaiah Washington portrays the role of Thelonious.

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.

Marcus Kane

Henry Ian Cusick portrays the role of Marcus.

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.

Raven Reyes

Lindsey Morgan portrays the role of Raven.

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.

Lincoln

Ricky Whittle portrays the role of Lincoln.

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.

John Murphy

Richard Harmon portrays the role of Murphy.

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.

King Roan

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.

Recurring cast

The 100

• 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.

The Ark/Arkadia/Skaikru

• 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.

Grounders

Trikru (Tree people)

• 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.

Azgeda (Ice nation)

• 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.

Other

• 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.

Mount Weather

• 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.

City of light

• 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.

References

External links

• Official website