This is the page about Sheldon (fish). If you were looking for the article about Plankton, then see Sheldon J. Plankton.

Sheldon is a fish who makes several cameo appearances throughout the series. He is usually seen at the Krusty Krab and Goo Lagoon.


He is a light gray colored fish with dark purple arms and a long dark purple dorsal fin and has several purple spots. He wears a red speedo.


He went to the Krusty Krab with Jennifer Millie in "Pickles" and with Tina in the episode "The Algae's Always Greener." Sheldon also appears in the episode "Walking the Plankton," jumping off the ship after Karen splits it in half. He is also a friend of Squilliam Fancyson. He also appears in the episode "The Nitwitting" as a member of the Empty Head Society.


Sheldon's model


  • According to the episode "Bubble Buddy," he has an object pal called "Funny Muffler."
  • He likes the Krabby Patties with snail slime.
  • His name is exactly the same as Plankton's first name.
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