Karen Plankton is an ancestor of Karen Plankton and is the wife of the evil wizard Planktonamor.
She is a round shaped light emerald green crystal ball with Karen Plankton's lines on it. She makes a single appearance in the episode "Dunces and Dragons."
She has the personality of Karen Plankton the computer.
Role in episode
She is seen to show Planktonamor the location of SpongeBob
and what they are doing on her screen.