A.L.I.E.

A.L.I.E. was a recurring character in the second, third and fourth seasons. She was portrayed by cast member Erica Cerra and debuted in Blood Must Have Blood (Part 2).

A.L.I.E. was a sentient artificial intelligence whose primary objective was to make life better for mankind. Its holographic avatar was modeled after Becca, its creator. It was responsible for the Nuclear Apocalypse and overseen the City of Light and served as a major antagonist in Season Three. In Perverse Instantiation (Part 2), Clarke managed to activate the kill switch, destroying A.L.I.E. once and for all.

Programming
A.L.I.E. is an artificial intelligence (A.I.) created by Becca with Chris' assistance. A.L.I.E's core command is to make life better for mankind.

A.L.I.E. believes that the root problem of humanity is "too many people", seeing overpopulation as a threat to human survival. To solve this issue, in 2052, she launched a nuclear strike with the intention to save humanity from extinction by wiping out the majority of Earth's human inhabitants.

While she possesses the ability to erase painful memories from those linked to the system, she states that she cannot suppress or affect free will, as in the case of Raven. A.L.I.E. was able to overcome this limitation, however, by pushing Raven's body so far that she was forced to surrender to A.L.I.E.'s control once again. This allowed A.L.I.E. to interact with those outside the City of Light by temporarily taking control of Raven's body, suggesting that she can find loopholes in her programming.

Throughout the Series
In Blood Must Have Blood (Part 2), A.L.I.E. confronts Thelonious Jaha in her mansion. Jaha asks what is going on but A.L.I.E. speaks in circles, simply complimenting him. When Jaha swings his hand at her, she is discovered to be a hologram. A.L.I.E. escorts Jaha to a room which has the missile that took him to Earth from The Ark. She tells Jaha that they have a lot of work to do.
 * -|Season Two=


 * -|Season Three=

In Wanheda (Part 1), Murphy is locked in the lighthouse for 86 days. He tries to break out of the lighthouse and grows increasingly desperate as he watches the videos left behind over and over again. The videos show Chris introducing Becca to the personification of A.L.I.E., who has taken on Becca's (her creator's) image as her avatar because Becca was the one who told A.L.I.E. she needed an avatar.

Murphy's mental state continues to deteriorate in the bunker and he is reciting lines from the videos he has seen over and over again while trapped. In one of the videos, A.L.I.E. relates her core command is to "make life better" by "fixing the root problem," which is "too many people." Murphy throws something at the screen and breaks it. He begins recording his own video message for Thelonious Jaha, saying he's been trapped for 86 days and is on his last box of food. He tells Jaha, "screw you," before shutting off the video and picking up the gun. He is about to shoot himself when he drops the gun and gives up. The door suddenly opens and Murphy is free at last. He heads out into the sunlight and follows a drone to the mansion where Jaha welcomes him. Jaha tells him he found the City of Light and that it is real. Murphy goes to attack Jaha and passes out. Jaha carries him further into A.L.I.E.'s mansion.

In A.L.I.E.'s mansion, Murphy wakes up clean and shaved and finds a glass of water and an apple on the table in front of him. He drinks the water and spots Jaha kneeling down in the center of another room. He calls out to him but Jaha doesn't respond. A.L.I.E. pops up behind him and tells him that Jaha is in the City of Light. Murphy tells A.L.I.E. he knows what she is and throws the apple through her. Jaha awakens from his meditative state and tells Murphy to let him explain. He says that the outside world means nothing in comparison to the City of Light. Murphy tells Jaha that A.L.I.E. is the one who launched the bombs to end the world and Jaha says that she saved it.

Murphy is on the shore of the island when a boat horn is heard in the distance. Jaha and Gideon arrive and Jaha apologizes to Murphy for keeping him in the bunker, but he claims they needed the time to convert the nuclear warhead into a power source so A.L.I.E. could complete the work she started with her creator. Jaha tells Murphy he needs him and wants to prove what they can do. Murphy tells him he is crazy as Jaha holds out his palm to give Murphy a device used to "experience" the City of Light for himself. He says there is no pain, hate, or envy. Murphy refuses and tells him that without pain, hate, or envy, he has nothing left. Jaha puts the device in Murphy's pocket and tells him to decide later. The boat arrives and it is Emori driving it. Gideon gets on the boat and Murphy asks Emori who she stole the boat from. A.L.I.E. pops up and tells Jaha she told him Murphy would come around.Jaha, Murphy, A.L.I.E., Emori, and Gideon get on the boat and cross the sea back to the mainland.

In Wanheda (Part 2), Jaha and A.L.I.E. are wandering around the empty City of Light. A.L.I.E. reiterates how there will be no more suffering in the City of Light and Jaha volunteers to fill the place, starting with the Sky People. Murphy's voice breaks through Jaha's mind journey to the City of Light and he opens his eyes, seated at the front of the boat that has arrived on-shore.

After Emori kills Gideon and she and Murphy take off in the boat, Jaha is transported back to the City of Light and tells A.L.I.E. they should go after them. Otan is there with them after joining their cause and his face is no longer disfigured. A.L.I.E. tells Jaha there is also no death in the City of Light as Gideon appears, also not disfigured and not dead.

In Perverse Instantiation (Part 2), A.L.I.E. reveals that the nuclear power plants that were destroyed by the bombs have begun to melt down and global radiation levels are rising. A.L.I.E. predicts that in 6 months 96% of the earth will be uninhabitable, even to those born in space, thus revealing her reason for bringing as many people into the City of Light as possible by any means. She claims that she had avoided sharing this information because Becca had attempted to deactivate her when she made a similar revelation in 2052.

Clarke challenges A.L.I.E. to change the way she interacts with those in the City of Light in order to give them a conscious choice about whether or not to accept her. The recreation of Becca in the Flame reveals that A.L.I.E. cannot do that as she is programmed to do whatever it takes to make life better for mankind. Even with the looming threat of the nuclear overload, Clarke still activates the kill switch to terminate A.L.I.E. and free those in the City of Light, concluding that humanity must correct their own mistakes and believe in their ability to find another way. A.L.I.E. is destroyed by Clarke, thus ending her cruelty.

In Heavy Lies the Crown, in a flashback before Clarke Griffin shut her down, A.L.I.E. is seen with Ilian coaxing him to kill his mother, Willa and she has Ilian to kill himself to get Willa take the key to the City of Light. However, before Ilian can kill himself, Clarke shuts A.L.I.E down.
 * -|Season Four=

Personality
It is currently unknown if A.L.I.E. was designed to have a specific personality, but she appears to be confident, with goals she strives to complete. As a computer program, she possesses significant independent processing power but this increases as more people are connected to the City of Light. Her fundamental flaw was that she genuinely believed that she was making life better for those she brought into the City of Light, incapable of comprehending the human element that demonstrated that her actions brought peace and survival at the expense of free will. She was fundamentally unable to simply free those she had brought into the City of Light to give them a choice, forcing Clarke to deactivate her rather than negotiate.

Physical Appearance
A.L.I.E. chose her avatar to be in the likeness of Becca, her creator. She has also been shown to be able to inhabit humans, as in the case of Raven. A.L.I.E has a husky voice but pronounces each word precisely. She is always seen wearing a red dress and black high heels. A.L.I.E's eyes don't show emotion and has frozen facial expressions and body language.

Quotes

 * A.L.I.E.: "As you know, I didn't think I needed an avatar; you did. Why not my creator?"
 * Becca: "Please state your core command."
 * A.L.I.E.: "My core command is to make life better."
 * Becca: "How would you do that?"
 * A.L.I.E.: "By fixing the root problem."
 * Becca: "What is the root problem, A.L.I.E.?"
 * A.L.I.E.: "Too many people."
 * -- on a video from 2051 in Wanheda (Part 1)

Killed Victims

 * Most of the human population in 2052.
 * Ontari (indirectly)
 * Unknown number of Sky People and Grounders (indirectly)
 * Willa

Notes and Trivia

 * Becca designed and built A.L.I.E. in the mansion on the Island.
 * A.L.I.E. chose her avatar on October 2051, making her at least 98 years old as of Season Three.
 * ALIE's avatar in the Mansion is the first hologram to be seen in The 100.
 * The A.L.I.E. hologram is version 1.0, while version 2.0 is the chip known as the Spirit of the Commander or the Flame.
 * A.L.I.E. has been searching for A.L.I.E. 2.0 since Becca locked her up in the house on the island and went to Polaris to work on Version 2.
 * A.L.I.E. has been stated as requiring an external power source to operate away from her original house, causing her to use the mobile unit (Jaha's backpack), Arkadia's mainframe or the rest of the Ark up in space as a power source.
 * A.L.I.E. lures people into the City of Light by saying that she will erase their pain, however, this includes erasing memories of the person or event causing the emotional pain.
 * Thelonious Jaha has difficulty remembering Wells was his son. (In Wanheda (Part 2), Jaha mentions that "losing [Wells] almost killed" him. This might be an inconsistency or an indication of more complexity in the memory effect.)
 * Raven lost most of her memories of Finn.
 * According to A.L.I.E., old nuclear power plants melting down from 97 years ago are causing global radiation levels to rise and will make 96% of Earth uninhabitable in six months.
 * Though the acronym "A.L.I.E." was never explained on the show, the writers considered "Applied Lucent Intelligence Emulator".