Plankton (character)

Sheldon J. Plankton, or simply Plankton, is a fictional character in the American animated television series SpongeBob SquarePants. He is voiced by actor Mr. Lawrence and first appeared in the episode "Plankton!" on July 31, 1999. Plankton was created and designed by marine biologist and cartoonist Stephen Hillenburg, the creator of the program, along with Lawrence.
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