Teen Wolf's True Alpha will create his first Beta when the series returns for season 4.

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Scott McCall (Tyler Posey) needs to rebuild his pack following the death of Allison and the loss of Isaac, and the young werewolf will turn his first human when Teen Wolf returns to MTV.

A new Beacon Hills' lacrosse player named Liam (Dylan Sprayberry) has been the talk of the fandom over the last few months, but it was unknown just what form of supernatural powers the freshman would bring to the California town. According to series creator Jeff Davis, Liam and his friends Mason and Garrett will have major roles to play as the season progresses.

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"We also wanted to bring in these new characters to give Scott a new dynamic to play as well," Davis explained to Buzzfeed. "At the end of Episode 3, we reveal that Liam is Scott's first Beta. So, that's going to be quite a challenge for him."

Now that Scott has this new charge to look after, he and Stiles (Dylan O'Brien) will forge a brotherly relationship with him.

"What we really wanted to do was give Stiles and Scott a little brother," Davis continued. "They're not the same kids they were in the pilot, so we give them a little brother who is a pain in the ass. He's a little cocky kid, but he's not really Jackson (Colton Haynes in Season 1 and 2). That got generalized in the breakdown. Dylan (Sprayberry) is great. I think he's been such a great addition to the cast."

Find out more about Liam when Teen Wolf returns to MTV on June 23.