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Doug Plankton
Sheldon, Clem, Doug, and other Plankton cousins
Interests: Root beer
Physical appearance
Gender: Male
Color: Light green
Eye color: Black
Classification: Plankton
Siblings: Possibly at least one of Sheldon's Other Cousins
Grandparents: Grandpa Plankton
Grandma Plankton
Aunts: Mrs. Plankton (by Marriage)
Uncles: Mr. Plankton
Cousins: Plankton
Ancestors: Planktonamor
Dead Eye Plankton
Series information
Appearance: "Plankton's Army"
List of characters

Doug Plankton is one of Sheldon J. Plankton's cousins. He only appears in the episode, "Plankton's Army."


He is a hillbilly like the rest of Plankton's cousins.

Villainous role

He helps Sheldon try to steal the Krabby Patty Secret Formula.


Relationship with Sheldon

He seems to have a pretty good relationship with Sheldon.


  • The name could be reference to the first name of Sheldon's voice actor, Doug Lawrence.

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