Mr. Jerk is a jerk. He is one of Joe's "friends". He has cousins named Mr. Bully and Mr. Mean. He is shorter than Mr. Bully but taller than Mr. Mean. He is also taller than Joe.

All four of them went on the Low-Budget 8th Grade Savannah Field Trip in 8th grade.

Mr. Jerk helped make the Edited Purple Bunny Show to scare Mr. Broque and Mr. Broquesupporter.