Cousin Marvin
If you were looking for the article about the fish, then see Marvin.
Character
Marvin[1] in one of the cousins of Sheldon J. Plankton. Unlike Sheldon's other cousins, it is unknown if he is a Plankton or if he is one of Sheldon's maternal cousins. He only appears in "Plankton. A Thank You Would Be Nice."
Description
Sheldon considers Marvin stupid. Marvin is notably smaller than some of Sheldon's other cousins.[1]
History
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