Incidental 85

Incidental 85 is an orange elderly fish citizen of Bikini Bottom who makes cameos in several episodes, starring with "Mermaid Man and Barnacle Boy."

Description
He is an old light orange fish with light brown lips and wears a light blue shirt with a white collar.

"The Bully"
He is mistaken by Incidental 40 and the townspeople as the person who wants to kick SpongeBob's butt.

"Mermaid Man and Barnacle Boy V"
He is shown on TV when Man Ray, Dirty Bubble, and Barnacle Man ding-dong-ditch him, threatening to get them and calling them "crazy kids."

"Mid-Life Crustacean"
He is seen in line for ice cream with the other old Bikini Bottomites.

Trivia

 * He looks very similar to Old Man Jenkins' design.