Incidental 15 is a fish that can often be seen at Goo Lagoon and the Krusty Krab. He first appears in the episode "Ripped Pants."
He is a large green fish with dark green spots, and he wears orange shades with blue shorts with white flower-shaped spots on it. He has dark blue lips.
Role in series
He watches the weight lifters at Goo Lagoon.
He was surprised to hear SpongeBob swearing.
He is seen at the Court House.
He made fun of SpongeBob's wig and said it was uncool, but is later seen wearing one himself.
He walks out of the Krusty Krab along with other customers because the Krabby Patties weren't good for them.
He watches SpongeBob and Patrick, and later Squidward and Sandy play sports.