Stiles
Mieczysław Stilinski, better known as Stiles Stilinski, is one of the main characters and the deuteragonist of Teen Wolf. He is the son of Sheriff Noah Stilinski and the late Claudia Stilinski, the best friend and brother in all but blood with Scott McCall. He is also the boyfriend of Lydia Martin.
Stiles was first introduced as a curious, hyperactive, and sarcastic high school student whose decision to go out looking for a dead body in the woods led to him getting caught by his father, the Sheriff of Beacon County, and also led to his best friend Scott getting bitten by a Werewolf. From then on, Stiles has continued getting involved in the supernatural world despite having no powers of his own, doing his best to support his best friend and their growing pack while protecting the town from supernatural influences.By the end of Season 1, he became a hero in his own right by saving Lydia Martin from then-Alpha Peter Hale, and though Peter offered him the Bite as a reward for his help, he ultimately declined because he had no interest in being like Peter, no matter how tempted he was to have supernatural abilities of his own. Due to his knowledge of the law and investigations as a result of being the son of a police officer, Stiles takes great satisfaction in following the clues to lead him to supernatural threats such as the Kanima, the Alpha Pack, and the Darach.
In the second half of Season 3, Stiles was possessed by Dark Kitsune known as the Nogitsune, which caused him to commit several crimes that led to dozens of people getting hurt or killed, something that still causes Stiles immense guilt to this day. Once the Nogitsune was defeated, Stiles turned his attention back to investigations to take his mind off of it, and began to look into the supernatural hit-list known as the Deadpool, which caught his attention while he was also searching for the biological mother of his fellow packmate and then-girlfriend, Malia Tate, who is an assassin known only as the Desert Wolf.In Season 5, the relationships between the pack began to fracture due to the stress of fighting the Dread Doctors and the manipulations of Theo Raeken, causing Stiles to become estranged from Scott, Malia, and Lydia. However, upon learning of Theo's schemes and the revival of a terrifying creature known as La Bête du Gévaudan, Stiles reconciled with Scott and resumed working with his best friend to help reunite their beloved pack once again.
Upon the reunion of the pack, Stiles played a large role in the defeat of the Beast, Theo, and the Desert Wolf, something that helped Stiles heal from the guilt of accidentally killing Donovan Donati out of self-defense earlier in the season. Afterwards, his father informed him that these acts were a great first step in his career in law enforcement, insinuating that Stiles will be pursuing a career as a police officer like his father before him when he graduates from high school.
In Season 6, Stiles was erased from the memories of his loved ones by the Ghost Riders, causing his father, friends, and packmates to forget he ever existed. However, when Scott, Lydia and Malia began noticing the holes in their memories and realizing that someone was missing from their lives, they set off to force their minds to remember Stiles. After Scott, Malia and Lydia used various forms of hypnosis to trigger these repressed memories, a rift was created that allowed Stiles to escape the Phantom Train Station and help the pack defeat the Ghost Riders, led by Garrett Douglas. He has since graduated from Beacon Hills High School and is now a student in the pre-FBI program at George Washington University in Washington D.C.
Stiles returned to Beacon Hills at the end of Season 6 with Derek Hale in order to help their pack defeat the Anuk-ite (and, by extension, Tamora Monroe's Hunter Army); Stiles was instrumental in this defeat by stealing Mountain Ash from Argent Arms International's trophy room and using it to create a barrier around the Anuk-ite, causing its power of Petrification to rebound back onto itself and turn it to stone. In the two-year flash-forward at the end of the series, Stiles was shown to still be in a relationship with Lydia Martin and still a core member of the pack.