Ackles plays two characters on the television show, Dark Angel. He plays, Alec (a.k.a X5-494,) and Alec’s twin, Ben. The first character he played was Alec, which was the residential bad-boy of the show. He was meant to be more rebellious and morally corrupt than the other characters. The first episode that Ackles appears in is called, Pollo Loco.