(Clones aren't treated as biological children in the episode. PlanKrab is a clone, not a child of Krabs and Plankton.)
(Only appears in one panel, doesn't need a gallery)
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|name = Alvin
|name = Alvin

Latest revision as of 14:08, February 15, 2020

Alvin is the granduncle of Sheldon J. Plankton who appears in the comic A Plankton Family Tree.


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


He was born to Seymour and Basia in Bikini Bottom. He has three siblings: the Moe Bros and Lily Plankton.

At some point, according to Plankton, "he disappeared without a trace. All they found was his hat in a pool of ketchup."


  • Alvin looks similar to krill. Larval krill are considered planktonic.
Plankton (VE)

Sheldon J. PlanktonClemGenie the Wish GranterRufusRainchildDream PlanktonSheldon J. Plankton (Mr. Plankton's Universe)Gordon PlanktonLily PlanktonPlank-TonBasiaAlvinSilas PlanktonPlanktonamorDead Eye PlanktonKing PlanktonDr. Peter LanktonGolden KelpGrand Dad PlanktonGreen PlanKrabIdeal PlanktonConscienceCousin MarvinDream Lily PlanktonMama PlanktonMini Brain PlanktonMoe BrosPlanKrabPlankton zombiesPlanktonamorPlanktonellaProfessor PlanktonRainchildRay RayRed PlanKrabSeymourSheldon J. Plankton (Bikini Bottom 2)Sheldon R. ShellcleanerThe Amazing PlanktonThe Ghost of Plankton

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