Plankton

Plankton is the villain of the Sponge Bob television series. He is the owner of the chum bucket and constantly tries to steal the forula for the Krabby Patty, the delicious food that is sold by the Krusty Krab.

Plankton owns extremely advanced technology. His wife is a computer aptly named "Computer Wife" or "Cheryl." Plankton's full name is Sheldon J. Plankton.