Karen Plankton (The Life of SpongeBob SquarePants)

Karen Plankton is the computer wife of Sheldon J. Plankton, owner and operator of the struggling restaurant Chum Bucket, which also serves as their residence. She is a portable wheeled Mark II Surplus UNIVAC with 256 GB of RAM.

Personality
Karen is generally nice and behaves well, although she can also be evil thanks to her husband's influence. She has an unstable, love-hate relationship with her husband; from time to time she would fall under her husband's influence and consents to, and sometimes even actively supports, his evil plans; other times she would fiercely criticize his plans and behavior and cynically declare that he is headed to failure. She can also appear indifferent to his plans or even his very presence.

Biography
Karen is currently married to Plankton. They live together in his restaurant, the Chum Bucket.

She makes her first appearance in the episode "Sandy Goes a-Writin'", in which Plankton spends hours updating her hardware and software in order to make her compatible with the Sheldon J. Plankton P-1 Digital Printer (a digital printing press), which Plankton uses to print 10,000 copies of Sandy's book The Horrible Condition of Bikini Bottom's Employees.