But don't expect to see the same intense and broody Derek we all know and love today as Nelson plays Derek at 15 years old, when he was a popular and charming star athlete; this is Derek before disaster struck his family, turning him into a lone werewolf always in search of a new pack.

In the same episode, viewers will also be meeting Derek's mother Talia, who is a strong and deadly alpha werewolf, and his older sister Laura, a beautiful beta who has the potential to become an alpha.

Nelson is best known for his role as the tribute from District 3 in The Hunger Games.

Teen Wolf returns Monday, June 3 on MTV.