Sheldon J. Plankton

Sheldon J. Plankton is one of the ten main characters of SpongeBob SquarePants. Originally from Kengsinton, Prince Edward Island. Plankton moved to Bikini Bottom when he was 6 months old. He was to follow his dreams of 1: be a successful business owner (unrealised) and 2: Domination of his surroundings. (Partially realized). 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.

Personality
His greatest desire is the Krabby Patty formula and creates a lot of plans to steal it, all failing. He is not entirely evil, as he's shown to have a good side with Karen, Spot (his pet) and SpongeBob.

Category:SpongeBob SquarePants characters
Category:Anthromophic characters
Category:Fictional characters introduced in 1999
Category:Animated movie villains