Sheldon J. Plankton
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. Plankton debuted in the episode "Plankton!", which aired on July 31, 1999.
|Sheldon J. Plankton
|'SpongeBob SquarePants' character
|Plankton! (July 31, 1999)
Wayne Knight (The SpongeBob SquarePants Movie)
|Boss of the Chum Bucket
|Wife: Karen Plankton
Son: Chip Plankton II
Parents: Gordon and Mrs. Plankton
Grandparents: Grand Dad and Lily Plankton
He gets a Krabby Patty and runs Mr. Krabs out of business. He went to college.