Mr. Lawrence

Douglas Lawrence Osowski (born January 1, 1969), known professionally as Mr. Lawrence, is an American voice actor, screenwriter, animator and comedian. He is best known for his work as a writer and voice actor for the Nicktoons Rocko's Modern Life and SpongeBob SquarePants. On SpongeBob, he has provided the voice of Sheldon J. Plankton, Larry the Lobster, Fred, and various recurring characters since the show's debut in 1999.