Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
If you were looking for the article about the fish, then see Marvin.
If you were looking for the article about the animal control officer, then see Marvin (animal control officer).

Marvin is one of Plankton's cousins. He appears in the short "Plankton. A Thank You Would Be Nice."


Marvin appears to be a much more primitive species of plankton. Marvin is notably smaller than some of Sheldon's other cousins.[1]


Cousin Marvin appears when Plankton is explaining how his species are the most important living creatures on the planet. He uses cousin Marvin, who he describes as stupid, as an example, but he then explains how Marvin has planktonic plant brains that make up half of the Earth's oxygen.

Plankton (VE)

Sheldon J. PlanktonClemRufusRainchildGordon PlanktonLily PlanktonBasiaAlvinSilas PlanktonPlanktonamorDead Eye PlanktonGrand Dad PlanktonGreen PlanKrabIdeal PlanktonCousin MarvinDream Lily PlanktonMama PlanktonMoe BrosPlanKrabPlankton zombiesPlanktonamorRed PlanKrabSeymourSheldon J. Plankton (Bikini Bottom 2)

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