|| More seaweed medley, dear?
Incidental 12  is a fish who makes a lot of cameo appearances throughout the series, starting in the episode "Ripped Pants."
She is a light purple fish who has light blue eyes and black pupils. She also has an orange dorsal fin. She wears a red bathing suit and pink lipstick.
In the book adaptation of "Hall Monitor," she has a different appearance. Her eyes are both on the front of her head and she wears a curled wig and a ruffled shirt.
Role in series
She appears in the crowd watching Larry the Lobster and Sandy lift weights.
She appears as a student in Mrs. Puff's Boating School. She laters appears in her house with Incidental 13, eating seaweed medley until they get scared away by the "open window maniac," who is actually SpongeBob in disguise.
She appears as a member of Squidward's marching band. She is seen squeezing Incidental 27's eyes during the big fight.
She appears at a high class fancy restaurant with Fred. She gets her blonde wig ripped off when SpongeBob and Stickyfins Whiting come dashing through the restaurant.
- ^ Incidental Model Sheet 1