SpongeBob SquarePants

Silas Plankton

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Silas Plankton
Silas Plankton
Physical appearance
Gender: Male
Color: Deep green
Eye color: Red
Classification: Plankton
Siblings: Gordon Plankton
Parents: Ella Plankton
Grandparents: Seymour and Basia
Uncles: Alvin
Nephews: Sheldon J. Plankton
Series information
Appearance: "A Plankton Family Tree"
List of characters

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


He is deep green in color and roundish, has two eyes, two antennae, buck teeth, and a faint tail.

Role in the comic

He is only in the comic as a picture and represantion of Plankton's family tree.

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