Jessica Pinkerton is a student at Greeley Elementary. She made her first appearance in "The Poor Kid", as a bully who was about to beat up Karen McCormick. Her attempts at bullying Karen were thwarted by Mysterion who severely beat her. Mysterion then declared to the rest of the school that Karen was "off-limits" before disappearing.
Jessica Pinkerton is Caucasian with long blonde hair. She wears a long, ripped orange shirt with a stretched-out collar and grass-green pants.