Jimmy the Accordion Player is a citizen of Halloween Town who performs in the town band. He plays the accordion, which has a fish head and tail on both ends.
Jimmy was first seen during This is Halloween and later reappears when Jack leaves town. The following morning, he tells the Mayor that Jack isn't home. Then, Jimmy was seen in the Making Christmas scene, pushing a wheelbarrow full of jack-o-lanterns. Jimmy was seen sad after Jack was blown up by the military army. He was holding his accordion when he greets Jack at the end.