Nat Peterson

Incidental 41 (named Peterson, Nat.), otherwise known as Nat Peterson, is a fish who has appeared in various episodes and is one of the most common fish characters in the series. He first appears in the episode "Ripped Pants" and plays his biggest role yet in "Plankton's Regular."

In When the Cold Breeze Blows Away, he will be mentioned in various wars that he didn't care about invasions.