The evil wizard Planktonamor is an ancestor of Plankton and is just as evil. He lived in a castle in a dark landscape on a somewhat of a hill, close to medieval Bikini Bottom. After kidnapping Princess Pearl he was found by SpongeBob, Patrick, Squidly and The Dark Knight and was almost victorious but was zapped by his own Dragon Jellyfish. He was the main antagonist of the Dunces and Dragons episode.
Planktonamor looks that he has old age considering having a white beard. He looks averagely the same as Plankton but he has a big purple cloak with a gold piece in the middle. He is still the same size as Plankton. His beady eye and antennae is also the same as Plankton's.
- "Dunces and Dragons" is the only appearance of Planktonamor and his wife, the Glass Ball Karen.
- He can use magic but it only tickles people. It would probably be more effective if he was bigger.
- He has two guards outside of his tower.
- There are obvious parallels to Lord of the Rings' Sauron and Sarumon.