Incidental 93

Incidental 93 is an elderly fish and recurring character who appears in numerous episodes throughout in the series, beginning with "Mermaid Man and Barnacle Boy." She resides at Shady Shoals Rest Home.

Names

 * In "Party Pooper Pants," she was named Miss. Shell.

Description
She is lavender and has light bluish-white hair. She usually wears a light blue dress, oval-shaped glasses, black boots, and red lipstick. She can also be seen wearing a hearing aid.

"Mermaid Man and Barnacle Boy"
He is shown as part of the angry mob full of residents at Shady Shoals caretaker when summoned by Mermaid Man and Barnacle Boy.

"Neptune's Spatula"
She is asking for directions from at the Fry Cook Museum, but runs away when she sees  pulling out the Golden spatula from the grease.

"Fools in April"
SpongeBob pulls an April Fool's prank on her, when he pulls a spoon out when she asks for a fork at the Krusty Krab.

"Ghost Host"
She is one of the Bikini Bottomites the Flying Dutchman fails to scare.

Trivia

 * Her eyes are seen in the episode "Neptune's Spatula" and she has a male voice when she says "Holy smokes!"
 * She plays a major role in the short "Crossing the Street."
 * She was SpongeBob's kindergarten teacher, as revealed in "Party Pooper Pants."