Tyler Posey

Biography
His family life was shaky as his father drank excessively and fought with Melissa constantly, if not cheated on her according to Elias Stilinski. One night, Rafael, in a drunken rage, he accidentally knocked Scott down the stairs. He came to with no memory of the incident. It was the last time his father took a drink and he left the family the next day leaving Scott hurt and angry for years.

He appeared to also have a dog named Roxy. While walking her, he and Roxy were attacked by another dog and Roxy appeared to protect at the cost of her life. At the hospital, he clings the bloody leash is looped around his arm and as Melissa breaks the news that she didn't make it. (EDITOR'S NOTE: Whether this is the reason for Scott's asthma is unknown.)

Scott lacked athletic skill and required a rescue inhaler to treat his asthma. When he is bitten by Peter Hale, the transformation into a werewolf made him into a superb athlete and also cured his asthma. Scott also had an after school job at the Beacon Hills Animal Clinic as an assistant to his mentor Dr. Deaton who also happens to be a Druid and advised him on how to handle threats as well as life.

With help from Stiles and Derek Hale Scott learned how to control his abilities and overcame Peter's bloody vengeance, Hunters and a Kanima before becoming an Alpha by force of will.

He developed a close relationship with Allison Argent even after the were no longer romantically involved with each other. Even after her death, Scott still cares for her and his memory of her saves her from the wrath of The Beast of Gevaudan.

True Alpha
Throughout Season 3, Scott seemed to possess physical characteristics beyond those of a Beta Werewolf although he was not a member of a traditional pack and was therefore technically an Omega.

Scott's eyes, on a number of occasions, turned from yellow to Alpha Red.

Dr. Deaton says this is because Scott is a "True Alpha" meaning he can attain the status by strength of character instead of taking the status by killing another Alpha. True Alpha's are exceptionally rare, only happening once in one hundred years.

In the Season 3 Mid-Season Finale, Scott fully attains the status of Alpha. A few months later, at the end of Season 4, he has mastered the monstrous strength that comes with it.