Gelman is the school bully and is also the biggest kid in the school. In some episodes Mikey Blumberg can be a little bit taler but Gelman is bigger.

He is 11 years old and is mostly seen bullying other kids like Gus Griswald . In Gus Last Stand he has been bullying a guy named Stample for a year and then he looks for a new punching bag witch happends to be Gus. Gelman is voiced by Justin Shenkarow.