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|Interests:||Drinking virtual English tea|
|Children:||Karen Plankton (daughter)|
|Other relatives:||Sheldon J. Plankton (son-in-law)|
|Enemies:||Sheldon J. Plankton|
|Appearance:||December, 2009 issue of Nickelodeon Magazine|
|List of characters|
Fredrick is a gray and old fashioned computer. He has a black screen with green-yellow eyes and a green-yellow mouth.
His interests and hobbies include drinking virtual cups of English tea and saying, "I disapprove of this."
The character is disapproving and does not think Karen should have ever married Plankton.
- He was created by a fan and then redraw by the show's animators to the style of SpongeBob SquarePants.