Sheldon James Plankton, better known as Plankton, is a villain from SpongeBob SquarePants and Mr. Krabs' archenemy and former childhood friend. He was voiced by Douglas Lawrence, who also voiced Edward Platypus, Dave, Ping Pong, and Nurse Leslie in Camp Lazlo (2005-2008), and Filburt Shelbach in Rocko's Modern Life.
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