Atom

Atom was a minor character in the first season. He was portrayed by Rhys Ward and debuted in the Earth Skills.

Atom is one of the Delinquents sent to Earth to see if it can support human life. Atom is a close advisor to Bellamy Blake and is a love interest for Octavia Blake. He is euthanized by Clarke Griffin after he is trapped in the acidic fog and is found severely wounded.

Early Life
Not much is known about his life before coming to Earth. Because he was under 18, he could not be executed and was imprisoned instead. He was sent down with the rest of the prisoners to Earth to see if it was sustainable for life.

Throughout the Series
In Earth Skills, Atom makes his first appearance as one of Bellamy's guys who are extremely loyal to him. When Bellamy decides to go look for Jasper with Murphy accompanying him, Atom is requested to stay back at the camp and watch over things, specifically getting the task to watch over Octavia Blake and make sure she stays put. The day consists of Octavia consistently taunting him about always following orders and never doing what he wants to do. He locks her away in the ship with Monty Green for a little bit, before letting her out. He follows her to where the butterflies are and ends up kissing Octavia, finally not following orders anymore. They are later seen kissing again, only to have Bellamy catch them. The furious brother and his thugs Murphy and John Mbege tie him up to a tree and leave him alone in the dark.
 * -|Season One =

In Earth Kills, Atom searches with Jones for the two lost delinquents, Pascal and Trina with no luck. Atom later blows off Octavia when she tries to talk to him because Bellamy punished him when he first caught them kissing. While hunting with Bellamy and others, Atom trips and becomes trapped in an acid fog that blows through the forest and suffers badly; there are bumps all over his body from where the poison touched his skin and his eyes are a pale, gray color. He begs Bellamy to kill him to end his suffering but Bellamy can't bring himself to do it. Instead, Clarke comforts and hums to him, as she kills him by stabbing him in the neck with a knife. Octavia is deeply hurt when she sees his body and Atom is later buried.

Physical Appearance
Atom had short black hair and blue eyes. He is somewhat muscular and appears fit.

Personality
Atom has one of the more submissive and loyal personalities of the delinquents. He listens to Bellamy and does what he orders, but he also has a more compassionate and independent side that came out when he was with Octavia.

Relationships

 * -| Octavia Blake =

Octavia Blake
Atom and Octavia's relationship first started on the rocks, but it began to improve as it progressed. While Atom eventually viewed her as a brat and as an assignment, Octavia began to develop feelings for him and eventually convinced him to let loose and the two kiss several times. The relationship is halted when Bellamy discovers them. Atom proceeds to ignore Octavia in fear of getting punished again. Octavia is incredibly upset at his death, indicating she had strong feelings for him.


 * -| Bellamy Blake =

Bellamy Blake
Atom obeys commands from Bellamy, like a soldier and general. This eventually becomes strained when Atom is caught kissing Octavia, something Bellamy had ordered him not to do. This causes Bellamy to mistrust and punish him for the incident by hanging him from a tree for disobeying Bellamy. When Atom is dying from the Acid Fog, Bellamy is visibly upset and is unable to kill his friend. Clarke has to eventually euthanize Atom in order to end his pain.

Quotes
"I'm no one's bitch"- to Octavia

Notes and Trivia

 * Contrary to popular belief his name is Atom, not Adam.
 * Atom is the third victim killed in the Acidic Fog.
 * The first and second were Trina and Pascal.
 * Atom is the first Delinquent to be mercy killed (performed by Clarke).
 * He didn't appear in the Join or Die flashback when Pike was teaching "Earth Skills" to the Delinquents.
 * Earth Skills is also the title of the first episode he appeared in.
 * It is unknown how he got imprisoned on the Ark