Old Man Jenkins (The Life of SpongeBob SquarePants)

Old Man Jenkins is an elderly fish who is also a citizen of Bikini Bottom. He is skinny and has gray skin. He is a regular customer at the Krusty Krab.

Biography
Old Man Jenkins makes his first appearance in the series' first episode: "Our Temporary Manager, Mr. SquarePants!". He is shown being the only customer who likes Patrick's bad-quality Krabby Patties and is the last to leave the restaurant, eventually leaving only because he thinks the restaurant is closed.