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|William William Bo William Banana Fana Fo Filly Plankton|
|Color:||Green or blue|
|Siblings:||Possibly at least one of Sheldon's Other Cousins|
|Aunts:||Mrs. Plankton (by Marriage)|
|Cousins:||Sheldon J. Plankton|
Dead Eye Plankton
|Enemies:||Eugene H. Krabs|
|List of characters|
William William Bo William Banana Fana Fo Filly Plankton, more commonly known as Billy Billy Bo Billy Banana Fana Fo Filly, is one of Sheldon J. Plankton's cousins. His only appearance is in the episode "Plankton's Army."
He is taller than Plankton. He is a hillbilly, like the rest of Plankton's cousins.
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