Karen Plankton the Computer
Gender Female
Job Solving problems
Nationality American
Hometown Bikini Bottom
Born November 30, 1942
Created 1999
Professional Information
Profession Co-owner of the Chum Bucket
Friends and Family
Parents E.M.I.L.P (mother)

F.R.E.D.R.I.C.K (father)

Creator Sheldon J. Plankton
Siblings EmiLLy, Caren
Spouse(s) Sheldon J. Plankton (husband)
Pet(s) Will Worm
Behind the Scenes

This page is for Karen from ANY person's continuity!"

Karen Plankton is a main character in the original SpongeBob series. She is the Chum Bucket's co-owner, alongside her husband, Sheldon J. Plankton. Karen can usually be found in the Chum Bucket laboratory. In real life, Karen is voiced by Jill Talley, who is the wife of SpongeBob's voice actor, Tom Kenny.

Role in fanon

She was Plankton's talking computer wife because they got divorced. She is a Mac OS X Leopard and has the ability to turn into all kinds of different Macs. Steve Jobs has tried to take credit for building Karen, leading to a feud with Plankton. In Konnichiku's fanmade series, she's a self-aware AI hologram that's friends with Swayzak. She also has a daughter in that series, named Caren.

Appearances in Fan Series and Episodes



  • SpongeBob (Sometimes)
  • Sandy
  • Gary
  • Squidward (sometimes)
  • Mr. Krabs (sometimes)
  • Swayzak
  • Pearl


  • Plankton
  • Karen 2


  • Karen is based off a Mac OS X 10.5 Leopard.
  • When a nutomic bomb explosion destroyed Bikini Bottom, Karen's personality OS was transferred to her mobile unit, without her memory.
  • Karen is a Mark II UNIVAC in the show.
  • Only her mobile version appears in Spongy Aquatic Adventures. She has her design from The SpongeBob SquarePants Movie from 2004.
  • Her AI matrix is represented via a full-bodied hologram in Konnichiku's series.