what is its role in the series?
Plankton shares a rivalry with Mr. Krabs, who owns the far more profitable Krusty Krab restaurant and sells a fictional burger called the Krabby Patty. Plankton and Karen often devise schemes to steal the secret Krabby Patty recipe, but their efforts are always thwarted by Krabs and his employees.
Plankton and Karen
 Plankton shares a rivalry with Mr. Krabs, who owns the far more profitable Krusty Krab restaurant and sells a fictional burger called the Krabby Patty. Plankton and Karen often devise schemes to steal the secret Krabby Patty recipe, but their efforts are always thwarted by Krabs and his employees.
is plankton from spongebob a zooplankton or phytoplankton Plankton is an intellectual planktonic copepod and Karen is a waterproof supercomputer. they are voiced by whom in spongebob squarepants? Mr. Lawrence and Jill Talley
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Plankton and Karen [SEP] Introduction
Plankton and Karen often devise schemes to steal the secret Krabby Patty recipe, but their efforts are always thwarted by Krabs and his employees. Critics have praised the characters' voices and dialogue together. They began as minor characters, but Lawrence developed their personalities throughout the show's early seasons and they eventually became the franchise's main antagonists. The Planktons play central roles in the 2004 theatrical film, which promoted them both to main cast members in its credits, and the . They have also been featured in a variety of spin-off media, including tie-in publications, playsets and other merchandise.