Planktonamor was a medieval ancestor of Plankton and was just as evil. He lived in a castle with his wife, Karen the Crystal Ball, in a dark landscape and on somewhat of a hill, close to medieval Bikini Bottom. He is the main antagonist of the episode "Dunces and Dragons."


Planktonamor looks old-aged, considering that he has a grayish-white beard. He looks the same as Plankton, but he wears a big light purple cloak with a brown belt in the middle. He is also the same size as Plankton.

Role in series

After kidnapping Princess Pearl, he was found by SpongeBob, Patrick, Squidly Tentacles, and the Dark Knight, and was almost victorious, but was zapped by his own dragon jellyfish after it ate SpongeBob's Krabby Patty and became obedient to SpongeBob.


  • Planktonamor was one of the few characters that could actually use magic.
  • Like his descendant, he was enemies with the Mr. Krabs of his era.

Dunces and Dragons Credits Doppelganger Proof.png

  • Doug Lawrence provided the voice of Planktonamor; however, he is uncredited.
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)

Dunces and Dragons (VE)

Characters: MorrieMorrie's wifeSeahorsesKnightsDungeon MasterSquidly TentaclesDragon jellyfishKing KrabsPrincess PearlLeechExecutionersPlanktonamorBlacksmithKaren the Crystal BallDark KnightPlanktonamor's guards

Locations: Bikini BottomshireMedieval MomentsPlanktonamor's tower

Miscellaneous: DVDVHS SpongeBob SquarePants Special Collection, Vol. 1Season 4 Volume 1The Complete Fourth SeasonNick Picks Volume 5The First 100 EpisodesThe Best 200 Episodes EverThe Third & Fourth SeasonsCalling All Heroes!From the Beginning, Pt.2Simply PatrickTales of a Teenage WhaleSpongeBob and Friends: Patrick SquarePantsOn the RoadOnline gameBookGood Knight SpongeBobSquidly's SongsMonday Knight Slimetime

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