He is usually a cyan fish with a dark blue dorsal fin. On the sides of his head, there are light reddish-purple spots. He has light salmon lips and black eyes. He is also shown with sharp teeth in earlier appearances.
In his early appearances, he doesn't wear any clothes. In later episodes, he usually wears a white shirt with a red speedo.
Role in series
He is seen eating a burger at the snack bar, and SpongeBob tells him that "ripped pants" would go good with a burger, much to his annoyance.
He is seen opening the Fry Cook Games by lighting a torch on a giant hamburger. A breeze blows off his torch at his first attempt. He successfully lights the burger on fire the second time, only for him to somehow get caught on fire himself.
He orders a milkshake at the Krusty Krab, however he became unsatisfied with his shake due to it being too hard and solid. After SpongeBob graduates from the Milkshake Academy, he gets another milkshake and claims it is the best one he ever had.