Sheldon J. Plankton
main antagonist in SpongeBob SquarePants
Sheldon J. Plankton is one of the ten main characters of SpongeBob SquarePants. He is a planktonic copepod who runs the Chum Bucket restaurant alongside with Karen, a waterproof robot who is Plankton's sidekick and wife.
| Sheldon J. Plankton | |
|---|---|
| 'SpongeBob SquarePants' character | |
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| First appearance | Plankton! (July 31, 1999) |
| Portrayed by | Mr. Lawrence Wayne Knight (The SpongeBob SquarePants Movie) |
| Information | |
| Species | Copepod |
| Gender | male |
| Occupation | Boss of the Chum Bucket |
| Relatives | Wife: Karen Plankton Son: Chip Plankton II Pet: Spot Parents: Gordon and Mrs. Plankton Grandparents: Grand Dad and Lily Plankton |
Plankton debuted in the episode "Plankton!", which aired on July 31, 1999.
Personality change
He gets a Krabby Patty and runs Mr. Krabs out of business. He went to college.