Barron is an ill-tempered, abusive, and cruel individual. Supremely self-centered and results oriented, Barron seems care little about how about his desired outcome comes about, as long as it does. Emotionally manipulating others to do his school work for him in order to stay on the school’s baseball team. When preying on nerds, he first feigns friendship with the target and asks them for help with his homework. And should that tactic lose it's effectiveness, he is not above resorting to physically and verbally assaulting them. During the latter stage, he escalates his abuses when they prioritize their work over his own, the work they do for him earns below an 80, or fails to make it to the deadline.

Voice Reference -

Biff (Back to the Future: Part 1)