Derek

Derek is a Light werewolf/Hybird and Cassie's birth father.

History
Derek's history is unknown.He  was a werewolf before he met Selene. He suddenly falls in love with a nerd named Selene. He saw her as a beautiful women. Derek starts to express interest in her. He fell in love with her. They both went to college and make love together. Few weeks later, Selene became pregnant with a half werewolf. Derek wasnt ready to be father. He was excited. 9 months later, Selene finally gives birth to a girl. They named her Cassidy "Cassie". Derek discovers that the demons and ghost fear her. He learns that his daughter is not only a werewolf. When they wanted to kill her, the only way was to send Cassie somewhere. Selene's friend Lydia took Cassie safe while Derek and Selene handled the demons. It left him heartbroken.

Derek broke up with Selene over her change. After giving up his daughter, Derek founds a way to communicate with Cassie. He helps her while she was on her journey. Derek founds Cassie in Berlin.