
Sheldon J. Plankton is the buisness rival of Mr. Eugene Krabs and owner of a low-budget restaurant called The Chum Bucket. His goal is to steal the Krabby Patty Recipe and later enslave the citizens of Bikini Bottom. He plays a secondary role in Cartoon Villains War.

Cartoon Villains War[]
Vs Dr. Heinz Doofenshmirtz[]
After his victory against Cyril Sneer, Mr. Burns continued to expand his business empire. This caught the attention of Sneer's former business partner, Dr. Heinz Doofenshmirtz, CEO of Doofenshmirtz Evil Incorporated, who decided to eliminate Burns himself. Hearing of this and fearing for his life, Burns decided to contact an old business associate, Sheldon J. Plankton, and tasked him with getting rid of the troublesome doctor. Plankton agreed, and attacked Doofenshmirtz's headquarters in a robotic battle suit. Doofenshmirtz immediately used his building's security measures to briefly stun Plankton, allowing him to retreat to the roof, followed by Plankton. Doofenshmirtz then prepared a large ray gun, threatening to obliterate Plankton. However, Plankton decided to use a new tactic, launching out a small scout robot from his suit. This briefly distracted Doofenshmirtz, giving Plankton the opportunity to knock him off the roof, leaving the doctor to fall to his death.
Vs Megavolt[]
Glomgold, having deduced that Mr. Burns and Plankton were behind the attempt on his life, sought to retaliate against them. To this end, he hired Megavolt (the only other member of the Fearsome Five that managed to escape after their defeat) to eliminate Plankton. Easily tracking the businessman down down, Megavolt broke into one of his factories, where Plankton had stayed late to finish some work. Shocked by the intrusion, Plankton activated his security system, mobilizing several robots to take Megavolt down. Unfortunately for him, Megavolt managed to easily overpower and destroy each of the robots However, Plankton still had one last ace in the hole, as he activated his newest and most powerful robot yet, Darrell. Making a dramatic entrance, Darrell quickly demonstrated how formidable he was by blasting Megavolt all the way across the room, winding the rat. However, Megavolt quickly recovered, and knocked Darrell back with a surge of electricity. Using a laser sword, Megavolt proceeded to slice Darrell's arm off, leaving the robot severely damaged. As Megavolt celebrated his supposed victory, however, the ever resilient Darrell got back up and punched the sword out of his hand. As Megavolt got tangled up in the wires connected to his sword, Plankton took the opportunity to plug it into a nearby outlet, electrocuting the rat. Darrell then proceeded to finish Megavolt off with several point-blank blasts of energy, knocking him unconscious and leaving him to be picked up by the police.
Creating Rob[]
Hoping to make up for the damage caused by Megavolt's attack, Mr. Burns hires a new assistant, Rancid Rabbit. However, the crime lord Fat Cat, annoyed by Burns and Plankton doing business with his competitors, uses experimental technology stolen from Xanatos Enterprises to create a glitch named Giffany and sends her to invade their company, where she begins taking over all of Plankton's robots. Unable to stop her, Plankton turns to Rancid, who extracts his own 'glitch', Rob, from a place called the Void and sends him to deal with Giffany.
Vs Glomgold[]
Glomgold informs Fat Cat that it is time to strike against their common enemies, Mr. Burns and Plankton. With Fat Cat's old friends, the Beagle Boys, piloting his newest prototypes, Glomgold attacks Plankton in his home. Although Plankton uses all the means at his disposal to mount a formidable defense, Glomgold's weapons are a little...bigger than he anticipated.
Plankton, having survived his battle with Glomgold, returns to Mr. Burns, informing him of the attempt on his life. Burns decides it is time to take more direct measures against their rivals.
Hiring New Allies[]
Mr. Burns and Plankton hire the services of the Gangreen Gang and Fuzzy Lumpkins (none the wiser to Burns's attempt on his life) in preparation for future conflicts with Glomgold.
With the war coming to an end, Burns and Plankton gather their allies to take down their rivals, with Plankton introducing a few of his relatives and a newly rebuilt Darrell as extra backup. Unfortunately, Glomgold has had a similar idea, and decides to hire the services of Don Karnage.
Vs Glomgold's forces[]
With the Beagle Boys dealt with, the rest of Burn’s forces charge in, catching Glomgold and his allies off guard. Glomgold, Fat Cat, Karnage, and his pirates face off against Burns, Rob, Fuzzy Lumpkins, Rancid, Darrell, and the Gangreen Gang, with Plankton aiding them remotely and waiting with backup...
With his forces defeated, Glomgold mounts one of his robots with the intent to wipe out his rival for good. Plankton and the others are overwhelmed by the arsenal of Glomgold’s robot.
Cartoon Villains War - Part Two[]
Meeting with other business leader[]
Xanatos and Fox hold a meeting of various powerful business leaders, where they explain that Skeletor’s regime poses a threat to them all, and proposes that they use their combined resources to unseat him.
New Rival[]
Mr. Burns and Plankton discover a possible rival to their business in the form of the Black Hat Organization, and decide to take measures to maintain their monopoly.
Vs Black Hat[]
With their minions having failed to return from their mission, Burns and Plankton head out to assassinate Black Hat themselves. Amused by their persistence, Black Hat goes out to meet them personally, intending to show his rivals just how far out of their depth they really are…Mr. Burns and Plankton retreat back to Xanatos’s side, while Lex Luthor introduces his new ally, Norman Osborn. Meanwhile, Xanatos is contacted by a secret ally of his own…
Cuphead Bosses vs Non Disney Villains War[]
Trying to kill Cala Maria[]
Fearing that Cala Maria might hunt him next, Plankton decided to turn his most trusted customer named Tritannus into a monster that can destroy Cala for good. However,this plan failed as Tritannus was defeated and eaten by Cala Maria.The next plan of Plankton was to hire the pirate known as Captain Brineybeard to go and hunt for Cala Maria.Plankton arriveed on Brineybeard's ship to make a deal with the pirate to kill Cala Maria. Brineybeard accepts, but with one condition....
Vs Jelly The Octopus[]
Plankton decided to help Brineybeard to clearing his path to rid of Cala by killing another octopus that somehow represents a threat for the pirate. Plankton uses his warfare plane to destroy Jelly's creature.However,in doing so,the creatures bodies managed to barely have the plane intact.Then Plankton uses the robot to give a hit to Jelly The Octopus source power.The scientist decides to end the fight by using a jar of tart sauce to destroy Jelly for good....
Disney vs Cartoon Villains War[]
Trying to impress Mr. Burns[]
Plankton meets the famous gang named The Gangreen Gang and asked them to help him to destroy The Fearsome Five to impress his new boss. Interested, The Gangreen Gang accepted Plankton's request if he lets them to join his boss.Plankon agrees with the offer.After The Gangreen Gang succeded with their mission,Plankton revealed to his boss, Mr. Burns,the fact that he had weakened Cruella and Ratigan allies,leaving Mr.Burns to promote Plankton.
Hearing Mr.Burns plan[]
Mr. Burns finally arrives home and reveals to Plankton the next part of the plan.Nom Nom visited the Chum Bucket and tells Plankton that he agrees to join Mr. Burns, much to Plankton's happiness as he knowns that Mr. Burns plan began to work.
Recruting more allies[]
Burns and Plankton have decided to hire another popular gangster who wears a chicken outfit to join them as a way to replace the loss of Fuzzy and The Amoeba Boys.After them,Plankton also managed to gather another two fellow animal criminals who have worked together before known as Katz and Le Quack into Burns faction.
Villains War:The Age of Animation[]
Teaming with Joe The Fish[]
In the ocean, a zooplankton and a cleaner fish managed to devour some mysterious liquid, only to gain sentience from it. Now with far more than just food to hunt for, the two decide to work together and rule over the seas.
Non Disney Heroes Vs Villains War[]
TV Villains War[]
In the "TV Villains War", Plankton was the first to fight with his opponet, Mandark. After a harsh rejection, Plankton over-powered the control of DeeDee, Mandark's love interest, giving him the chance to destory his laboratory. Later in Round 2 Epilouge Plankton is so far Closing in The War and has His Army Of Himself but they look like HillBillys, After the Discussings Plankton,Karen,And Their Army is about to Defeat the Villains.
Death[]
Karen Told Plankton that Someone is coming to destroy him she Picks 3 Ladies but Plankton picks the Wrong one and His minions wanted to come with him but Plankton thinks he can take his own, He goes to Camp wakanawa to have 'Chat with Heather" Heather insulted Him but Plankton Transform in to A Cockcroch to scare everybody only He was Killed by Duncan.
Rebirth[]
Or Was It!? It seemed the Evil Scientist Dr. Robotnik found the Dead cockroach and Tranform back to Plankton but He was Killed buy Heather's Friend Duncan, Dr. Robotnik revive him and Form an alliance with him and Plankton says Yes and He want to get his Revenge on Heather leaving Dead more than Mandark.
War of The Villains[]
In "War of The Villains", Plankton feels like he will never accomplish ANYTHING in his life. His computer wife, Karen, suggested that he seeks the help of Bob The Killer Goldfish, ruler of La Planeta De Agua (ARRIBA!).
Plankton then flew to the planet, but was quickly swatted by Bob's Cat Drone, #4, leaving him knocked out and unconsious. Once awaking, Plankton offered an alliance with Bob, who only laughed at his proposition. An angered Plankton then put a Chum Bucket Bucket Helmet on the tretorious Goldfish, turning him into one of Plankton's Servants.
Pokemon Heroes vs Disney and Non Disney Villains-Part Two[]
New members[]
Plankton discovers the very powerful Plan Z and decides to make his move bringing in two members of his alliance: the Evil Manta and Merman.
Sending his allies[]
To begin Plan Z, Plankton sends the Evil Manta and Merman on a dangerous trip to locate a talisman that could create a Bucket Helmet Fish Army to destroy Ash and his friends for good.
His army[]
The Evil Manta and Merman, despite losing to Squirtle and Bulbasaur, give Plankton the talisman. Now, Plankton has a giant Bucket Helmet Fish Army ready to take down Ash and his friends personally.Plankton, ready to put Plan Z into action, prepares his army, including his henchman, the Evil Manta and Merman, to take down a big threat: Lugia!
Vs Lugia[]
Preparing Plan Z fully charged, Plankton and his forces set out to take out to dangerous rare Pokemon known as Lugia. But he, the Evil Manta, and Merman as well as the Bucket Fish Army discover that Lugia has some other forces like Articuno, Zapdos, and Moltres. As a massive fight occurs, which forces will prevail?
Continue Plan Z[]
With the success of their assault against Lugia, Plankton and his forces are ready to move on to continue Plan Z.
Teaming with Tiburon[]
Elsewhere, Tiburon approaches Plankton and his allies for his newest secret plan.
Hunting May[]
Tiburon's plan is revealed when he tells about a rare Pokemon known as Mew. Hearing about this, Plankton and his forces set off to defeat the rare Pokemon for good.Plankton and his forces have arrived at Mew's mountains. However, Mewtwo is already prepared to attack, with the help of Blastoise. Thus, a massive fight begins, as Blastoise deals with Tiburon and Merman, while Mew decides to deal with Plankton and Evil Manta.
Animated Heroes vs Villains War[]
An opportunity[]
Shere Khan who survived his fight with Littlefoot goes to Plankton with the knocked out Sharptooth for him to use at his will, Plankton decides to use this opportunity to take out his enemy Krabs once and for all.
Animated vs CGI Villains War (Saverio Gamba)[]
Joining Buzz Buzzard[]
Infamous criminal Buzz Buzzard has recruited new allies for the war against the invaders from the other dimension.

In CGI Universe
Villains War (Legion of Darkness)[]
Soyuzmultfilm Villains vs Non Disney Villains War - Part 2[]
Animated Movies vs Cartoon Villains War[]
Global Threats[]
Episode 22: Replenishment in Fractions[]
CGI Villains War[]
Fictional Heroes vs Villains War[]

Disguise as one of his ancestors