He is a skinny olive-green robot fish with gray hair and a long gray beard who wears a light blue night gown. He lives in a barrel and constantly pops out non-stop.
Role in episode
He is one of the many animatronics in the Glove World!prison. He first pops out of a barrel in front of SpongeBob and Patrick and points out their breaking of the rules. Patrick assumes that he is a real old man and tells him he did not break any rules; he just broke a dummy head.
The old man then pops out a second time and says the same line again. Patrick gets angrily annoyed by him and tries to attack him until SpongeBob explains to him that he is just a robot like all the other animatronics in the prison.