Daniel Sharman plays abused teen beta werewolf, Isaac Lahey, abused by his own father and he was the first member to join Derek's pack and was the only one who stayed in the pack when Erica and Boyd were kidnapped by the Alpha pack and was in a vault for 3 months and Erica was killed by the Alpha Pack and Boyd was accidentally killed by pack leader, Derek, and was a big help to Derek, Scott, and Chris by helping to defeat Gerard and the Kanima (Jackson). And he also helped Scott, Derek, Chris, and Allison to stop Boyd and Cora from attacking innocent people by trapping them in the school's boiler room, So three cheers for Isaac!