Sheldon J. Plankton

For the species, see Plankton.

Sheldon James 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
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

He gets a Krabby Patty and runs Mr. Krabs out of business. He went to college.