SpongeBob SquarePants


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Physical appearance
Gender: Male
Color: Green
Eye color: Red
Classification: Plankton
Siblings: Moe Bros and Ella Plankton
Parents: Seymour and Basia
Nephews: Gordon Plankton and Silas Plankton
Series information
Appearance: "A Plankton Family Tree"
List of characters

Alvin is the great uncle of Sheldon J. Plankton, and only appears in "A Plankton Family Tree."


He is the same shape as his mother, Basia Plankton, but sports a pink top hat with a red ribbon


All that is known about him is that "He dissapeared without a trace. All they found was his hat in a pool of ketchup."

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