Cassidy Beaver Casablancas (Kyle Gallner)Cassidy Beaver Casablancas is a part of the affluent 09er group of students at Neptune High School.He is the younger brother of Dick Casablancas.Cassidy hates being called Beaver and is not a big fan of his brother who constantly torments him.Despite that, he still hangs out with Dick and his friends Logan Echolls and Duncan Kane quite frequently and is complicit in their sometimes cruel or illegal activities.Inexplicably, Dick is the favored child in the Casablancas household which leaves Cassidy feeling neglected.Dick and Cassidy's parents are divorced.