|Sheldon J. Plankton|
|Title||Sheldon, Dr. Peter Lankton, Scientist, Evil Mastermind, Provider, Founder, And Owner of the Chum Bucket, Villain League Member|
|Faction|| The Chum Bucket
|Description||Evil and Cunning, But Always Being Bushed Around and Stepped On|
|Skills and Abilities||Ingenious, Cunning, Scientific Genius for the Villain League, but Tiny|
|Status||Alive and Married to a Computer, but miraculously survives being stomped on, Managing the Chum Bucket even with repulsive, unhealthy, and foul-tasting food products|
|Location|| Dragon Realms
Kingdom Hearts World
Plankton is the ultimate arch-nemesis of Spongebob Squarepants and is a super genius straigest. He is the business rival of Mr. Krabs (the owner of the restaurant where Spongebob works, the Krusty Krab). While the Krusty Krab is popular among the sea creatures of Bikini Bottom, Plankton's own restaurant, the Chum Bucket, has very few customers.
Plankton constantly attempts to steal the formula for the Krabby Patty, the delicious burger-like food that is sold in the Krusty Krab. Plankton believes that the Krabby Patty is the reason for the Krusty Krab's success, and that his Chum Bucket would be equally popular if it sold the Patties as well. However, ensuring the success of his business is only the first step in Plankton's plan, which will culminate in him ruling the ocean.
In The Spongebob Squarepants Movie, Plankton does manage to steal the formula from Krabs, and the Chum Bucket becomes just as popular as the Krusty Krab had been previously. He even comes close to his eventual goal of ruling the sea, by giving away mind-controlling bucket hats free with his Krabby Patties. He is eventually thwarted by Spongebob and Patrick using the song Goofy Goober to save their friends from Plankton.
Role in the Spongebob Adventures series
Plankton is one of the members of the Villain League and almost the least recuring one, cause he has made some appearences. in SpongeBob and Friends Find Atlantis, he worked with Gaspar for the ealrist part of the film, and nearing the climax, Dr. Facilier, Dr. Blowhole, and the Frog Hunters, who later appear to contand the heart of atlantis (Max Salmon was also mentioned to be involed, but ended up not appearing) they were however defeated, the rest of them retreated while Plankton was captured and became a national treasure, as a "talking spack", it is mentioned by Dr. Blowhole in Spongebob and friends and Alice in wonderland, that the villain leage is still trying to bust plankton out to make up their mistake of leaving him behind. he returns and excapes from atlantis in Spongebob and Friends meet Hercules in a camieo, only to be defeated again. Of course, Plankton also has a secret form that he can activate to become whenever he gains enough dark power. This form is the dark wizard, Planktonimor. In this form, Plankton has enough dark magic to rival Maleficent and Jafar. Scroopfan finally has the Spongebob Episode, "Dunces and Dragons", however, due to a current computer problem, the usage of this plankton form is TBA.