Dylan O`Brien as Stiles Stilinski -Human-
Stiles Stilinski is Scott’s best friend, he and Scott consider each other brothers. “Stiles” is not his first name; creator Jeff Davis has stated that Stiles’ real name hasn’t been revealed. It is canon that Stiles’ first name was his maternal grandfather’s name. Stiles is very sarcastic, but has a very quick mind, being intelligent and clever if somewhat impractical. His intelligence is shown very early on when he figures out that Scott is becoming a werewolf and helps him adapt to his new life. Stiles is Scott’s sidekick and confidant, helping the young werewolf deal with the numerous threats that plague the town. The show alludes to him having attention deficit hyperactivity disorder through references to his Adderall use, which lends to his fidgeting gestures and frequent flailing. Stiles often provides comic relief to the otherwise dramatic events surrounding him and Scott. Stiles’ eagerness to help and caring nature have constantly put him in dangerous situations, nevertheless he continues to fight to protect his friends and loved ones.
Stiles shares a close and affectionate relationship with his father, Sheriff Stilinski, also being protective of him, partially due to the death of his mother, Claudia. Stiles is shown to be very emotional and insecure about his mother’s death; he was with her when she passed away, Stiles was 8 years old, and suffered panic attacks afterward. Stiles blames himself for it and fears it may come between him and his father, and that his father blames him. Stiles, throughout Seasons 1 and 2, has an intense, yet unrequited love for Lydia Martin, having harbored a crush on her since the 3rd grade. He has a simultaneously adversarial and allied relationship with Derek Hale. Stiles attempts to stand up to Derek, but the werewolf tends to scares him into submission. They help each other out and save each other’s lives multiple times throughout the series, and by Season 3, they are reluctant allies. In Season 3, Stiles is shown to be working alongside Lydia to figure out who is the culprit behind the Human sacrifices in Beacon Hills and they have a closer, but more equal, platonic dynamic that suggests Stiles’ love for her has become less intense. He also wishes to keep his father out of the supernatural occurrences out of fear that telling him could get him killed, not wanting to lose both his parents. This fear comes true after Jennifer Blake, the Darach, kidnaps his father for the Guardian sacrifice. He eventually sacrifices himself temporarily along with Scott and Allison to save their parents with Lydia as his tether to take his father’s place as a Guardian. He is finally reunited with his father at the end of the mid-season finale “Lunar Ellipse”, with the new burden of having a “darkness” forever shrouding his heart, like a tattoo, but with his father finally brought into the supernatural business, the two are now closer.
As a result of the Druid sacrifice, in “Anchors”, Stiles suffers from hallucinations, sleep paralysis and partial dyslexia, as well as the fact the sacrifice left a door in his mind open. Later, after using his natural intelligence to rescue Lydia from a steel jaw trap and helping his father reunite the werecoyote Malia Tate with her father, Stiles’ symptoms are cured. However, in the episode “Silverfinger”, Stiles is revealed to be possessed by the Nogitsune. In “Riddled”, Stiles comes face to face with the Dark Kitsune in his visions asking the riddle, “Everyone has it, but no one can lose it”, which Stiles, terrified, eventually solves as a “shadow”. Stiles comes to the realization he’s possessed when the Void Kitsune assumes his very face. Possessing Stiles, the Nogitsune causes a slew of attacks that leave innocents injured and dead but the Nogitsune’s hold over Stiles is temporarily broken when Deaton poisons Stiles with letharia vulpina or wolf lichen. In “Echo House”, Stiles, to prevent the Nogitsune from harming anyone else, has himself institutionalized at Eichen House. He’s shown around by his roommate Oliver. He sees that Malia is also interned there. With her help, Stiles searches for the connection between the Nogitsune and Eichen House. Stiles explains his situation to Malia where they bond over their horrific dilemmas. Eventually they kiss and sleep together. Oliver who is being controlled by the Nogitsune, knocks Malia out and binds Stiles. Stiles gives up his fight with the Nogitsune, letting the Kitsune back in so that he will spare Malia’s life. In “De-Void”, Stiles’ body is paralyzed with Kanima venom. Scott enters Stiles’s mind and using the roar of an Alpha, Stiles is finally separated from the Nogitsune, but the Void kitsune has taken on Stiles’ shape. Stiles is shown to be in constant internal pain and freezing, while the Nogitsune is growing stronger. As the fight against the Nogitsune continues, he gains control of the Oni and Allison is killed. Stiles is growing consistently weaker in “The Divine Move”, but he goes along with Scott, Lydia and Kira to the school to make a final stand against the Nogitsune. The Nogitsune traps them in an unfamiliar winter dimension at the school and are surrounded by the Oni. Stiles realizes that the winter reality is only an illusion. He has the foursome endure the Oni’s attacks until they escape the illusion the Nogitsune has trapped them in, pulling off a divine move that turns ‘the game’ around. Scott then Bites the Nogitsune, defeating the Dark Kitsune and winning the game, allowing Stiles to become whole again.
In Season 4, Stiles is in a romantic relationship with Malia, she regularly sneaks into the Stilinski house to sleep with him, he assists her in remaining restrained during the full moon and is helping her adjust to a regular human life after her eight years of living as a coyote. Stiles holds himself in deep regret, horror and guilt over the actions he committed during the Nogitsune’s possession of him, remembering everything while “feeling powerful”. He relates his horrors to Malia during one of her full moon episodes where he says he knows what it’s like to have hurt your loved ones as Malia holds herself guilty for what she did to her family, and this helps Malia perfect control. Upon learning of the Dead Pool, and that his friends are all on it, Stiles sets up a murder board in his room to learn who’s behind the money. Stiles is very reluctant to tell Malia about her true parentage to Peter because of the sociopathic werewolf’s past actions and manipulative ways, however she soon discovers the truth herself, straining their relationship. In ‘Perishable’, Stiles and Lydia follow clues leading to Eichen House, are almost murdered by Brunski, and discover Meredith has been the Benefactor all along. In ‘Monstrous’, Stiles and Malia make up and together, they locate and shut down the computer servers that house the Dead Pool, this terminates all the Benefactor’s contracts, subsequently saving their friends and the remnants of Satomi’s Pack. At the end of Season 4, Stiles helps Liam assert control during a full moon when they rescue Kira and Scott in Mexico, and starts a new investigation to find Malia’s biological mother, ‘the Desert Wolf’.