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."
Description
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.
Trivia
- 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.

- Doug Lawrence provided the voice of Planktonamor; however, he is uncredited.
Plankton (V • E) |
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Sheldon J. Plankton • Clem • Rufus • Rainchild • Gordon Plankton • Lily Plankton • Basia • Alvin • Silas Plankton • Planktonamor • Dead Eye Plankton • Grand Dad Plankton • Green PlanKrab • Ideal Plankton • Cousin Marvin • Dream Lily Plankton • Mama Plankton • Moe Bros • PlanKrab • Plankton zombies • Planktonamor • Red PlanKrab • Seymour • Sheldon J. Plankton (Bikini Bottom 2) |
Dunces and Dragons (V • E) |
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Characters: Morrie • Morrie's wife • Seahorses • Knights • Dungeon Master • Squidly Tentacles • Dragon jellyfish • King Krabs • Princess Pearl • Leech • Executioners • Planktonamor • Blacksmith • Karen the Crystal Ball • Dark Knight • Planktonamor's guards Locations: Bikini Bottomshire • Medieval Moments • Planktonamor's tower Miscellaneous: DVD • VHS SpongeBob SquarePants Special Collection, Vol. 1 • Season 4 Volume 1 • The Complete Fourth Season • Nick Picks Volume 5 • The First 100 Episodes • The Best 200 Episodes Ever • The Third & Fourth Seasons • Calling All Heroes! • From the Beginning, Pt.2 • Simply Patrick • Tales of a Teenage Whale • SpongeBob and Friends: Patrick SquarePants • On the Road • Online game • Book • Good Knight SpongeBob • Squidly's Songs • Monday Knight Slimetime |