He first appeared in the episode "Plankton!". He is bent on getting the Krabby Patty formula, and to a lesser extent, world domination. Plankton is one of the smallest characters in the show.

Plankton uses mind stuff to make spongebob kill mr krabs Plankton (full name Sheldon James Plankton ) is the main villain of SpongeBob SquarePants.
Spongebob Squarepants - Plankton Wins is the 1st Pamtri video involving Spongebob and Pamtri's first video overall. Sheldon J. Plankton is a main character in SpongeBob SquarePants.

Mr. Krabs: Not that part!
Plankton is the ultimate arch-nemesis of Spongebob Squarepants and is a super genius straigest. While the Krusty Krab is popular among the sea creatures of Bikini Bottom, Plankton's own restaurant, the Chum Bucket, has very few customers. Spongebob: Plankton, stop right there!

Plot synopsis Edit.

is an episode from Season 1. Plankton is one of the main characters and main antagonist in SpongeBob SquarePants. Plankton's goal is to steal The Krabby Patty Secret Formula and rule the fast food world. He is colored a shade of green.

Spongebob: Yes sir! uh, yea.

It chronicles the story of Plankton's first victory against the Krusty Krab. Plankton should really learn to control his temper.

Plankton is the smallest character in the show. I think that's cousin Sheldon you want, and I ain't him. There's another key!

Mr. Krabs pulls Plankton off of the burger and sends him back to the Chum Bucket. Seems like it has been more than 26 times now.

After making the patty, it begins to "move" and makes its way towards the front door. Al Sheldon James Plankton, ciamê anc sōl Plankton, 'l è 'n personâǵ di cartòun animê dla séri SpongeBob SquarePants, un microb verd escûr cun 'n ôć sōl e du antèni, padròun dla tèvla chelda Chum Bucket concoràinta dal Krusty Krab.Al Plankton 'l è sàimp'r in serca ed rubèr, dala só casafòrta, la risèta di krabby patty, i delisiōś hamburger ch'a s magna a 'l Krusty Krab. He is the business rival of Mr. Krabs (the owner of the restaurant where Spongebob works, the Krusty Krab). Clem: Uh ,excuse me? At the Krusty Krab, Squidward gives SpongeBob an order for a Krabby Patty. I'm a Plankton, but not the Plankton you want. "Plankton!" C'mon! As seen in The SpongeBob SquarePants Movie, Plankton tried every plan from A to Y, well, now Z to steal that formula. Mr.Krabs and Plankton used to be very great friends. He only has one eye, a feature that sets him apart from the others (besides his size). We need to get there and beat him to it!

He is known is stealing the secret formula from Mr.Krabs to save his run-of-the-mill restaurant, the Chum Bucket.