|Spongebob SquarePants Characters|
|Sheldon J. Plankton|
|Skin Color:||Deep Green|
|Eye Color:||Yellow and red|
|Height:||2 inches (with his antennas lowered)|
|Interests:|| Crushing his enemies |
Feeding people chum
He operates a struggling restaurant called the, located directly across the street from the . His primary goal in the cartoon is to steal the Krabby Patty secret formula and put Mr. Krabs out of business. Plankton succeeds at stealing the recipe in the movie, but his goal of world domination is thwarted by . In "Friend or Foe," it was revealed that Mr. Krabs and Plankton were once were best friends, but a dispute over the Krabby Patty recipe ended their friendship.
Plankton has spent a long period of time trying to destroy the Krusty Krab by stealing the Krabby Patty formula, a franchise owned and operated by. He is married to a computer named . He always comes short of getting the Krabby Patty formula.