Plankton and Karen 1 credits

Sheldon J. Plankton and Karen Plankton are a pair of fictional characters and the main antagonists of Nickelodeon's SpongeBob SquarePants franchise. They are voiced by Mr. Lawrence and Jill Talley, respectively. Their first appearance was in the episode "Plankton!", which premiered on July 31, 1999. They were created and designed by the marine biologist and animator Stephen Hillenburg, the creator of the series. Hillenburg named Karen after his wife, Karen Hillenburg (née Umland). Plankton and Karen are the married owners of the unsuccessful Chum Bucket restaurant. Plankton is an intellectual planktonic, cyclopic copepod, and Karen is a supercomputer. Plankton shares a rivalry with Mr.

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