Harold was Entree's pet crab, who is regularly mistreated by Entree. Entree fed Harold to the Wunny Sharbit chasing him. Harold escaped through the Wunny Sharbit's mouth and made a disguise resembling a robot with a hat and cloak.

He then set out to take revenge on Entree for feeding him to the hungry mutant. He also wanted revenge on Two-Legs Joe and Peri for teasing him. (The Count Of Pinchy Crabbo)