Mr. Jimmy is a zero binome on the crew of the Saucy Mare under The Crimson Binome. He is the chief guard for the ship's brig. Mr. Jimmy wears a patch over his right eye. Mouse was once imprisoned in the Saucy Mare's brig and put under Mr. Jimmy's guard. She was the only person to escape from his cell, as only Mouse can do. She left her mouse symbol on the cell wall. They tried to leave the system but Dot Matrix convinced Captain Capacitor that commerce was more profitable than piracy. They became partners in intersystem commerce. Mr. Jimmy later attended Dot Matrix's failed wedding.