Karen Plankton is a character in the SpongeBob SquarePants theme. The LEGO version of Karen was released in 2007 as part of the 4981 Chum Bucket set.


Karen's LEGO version consists of Part 4514398 (a bright blue, 4x6 plate with 12 knobs) and a unique, rectangular sticker representing her black screen and green facial features. Karen can be attached to the Chum Bucket wall using Part 4514398.


Karen is Plankton's wife and the main computer system of the Chum Bucket. She helps run the Chum Bucket alongside her husband and usually helps with Plankton's plans to steal the Krabby Patty secret formula from Mr. Krabs.