Jerry Rassic is a boy that lives on Bully Island, and supposedly creates the bullies there. Back in 1st grade, he was given a wedgie by Numbuh 4, so bad that doctors could not remove the underwear. Since then, Jerry has plotted his revenge. He lured Numbuhs 4 and 2 to Bully Island, pretending to like them, until he sent them to rescue his nonexistent sister, making them fall into a bully trap. He then explains his story, and claims that he and Hoagie could've been friends, had he not hung out with a bully (Numbuh 4). When Jerry got angry at the bullies for not attacking them, calling them names, they assisted the operatives and turned against Jerry. When Jerry tried to escape on his ship, the bullies pulled it back down and pulled him out, letting Numbuhs 2 and 4 go, then ganging up on Jerry.
- Jerry Rassic is definitely a parody of John Hammond, more particularly in the novel.
- Jerry Rassic's name is a reference to the word Jurassic, a period in the dinosaur era.