Pack (canine)
Animals which typically predominate over others are associated with the term "alpha". Among pack-living wolves, alpha wolves are the genetic parents of most cubs in the pack. Such access to mating females creates strong selective pressure for intra-sex competition.
Teen Wolf (season 2)
Kali, Ennis, Ethan and Aiden make a brief appearance in the season finale, "Master Plan", as the members of the Alpha Pack that kidnapped Boyd and Erica. As of Season 3, they become recurring characters, with their leader Deucalion introduced in "Tattoo", the first episode. These characters are played by Gideon Emery (Deucalion), Brian Patrick Wade (Ennis), Felisha Terrell (Kali), Charlie Carver (Ethan) and Max Carver (Aiden).