Liam Dunbar is a fictional character from the television series Teen Wolf, which aired from 2011 to 2017. He is portrayed by actor Dylan Sprayberry and is introduced in the show's fourth season. Liam is a high school student and a member of the Beacon Hills High School lacrosse team, known for his athleticism and determination. In the series, Liam becomes a werewolf after being bitten by Scott McCall, the main character. As a werewolf, he gains enhanced strength and agility, but also faces challenges related to his new identity. Throughout the show, Liam struggles with balancing his human life and his supernatural responsibilities.