He is a light blue banana shaped fish with dark green fins and yellow eyes. He wears a red shirt. His nostrils appear to be on his forehead and he has thin black feet.
Role in series
Incidental 3 has made several cameos throughout the show as a silent background character who is usually seen deep in crowds with other incidentals. He has yet to have his own speaking role and he was firstly designed to be a Krusty Krab customer.
He and Fred are seen driving on a four way crossroad where they both stop in front of each other when SpongeBob's zooms through the crossroad.