Sheldon J. Plankton/Appearances (Season 14-Present)

This is a list of appearances of the character Sheldon J. Plankton in all seasons of SpongeBob SquarePants since season 14. In total, Plankton has appeared in over hundreds of SpongeBob-related products. On the main series, he has appeared in some form in 159 (not counting Welcome to Binary Bottom) episodes so far.

Bold means Plankton was the main character of and/or played a major role in that episode.

Italic means Plankton appears in a feature-length movie, a book, a video game, or a musical. It is also used for the titles of television shows that he appears in.

Episodes where Plankton cameos, appears in a deleted scene, appears as an entirely different character not related to him or appears in a time card or title card, as well as episodes where only his voice is heard, also count. However, episodes where he is an entirely different character that is nonetheless related to him (e.g. PlankBot in "Welcome to Binary Bottom") do not count on this page. Exceptions to this rule are if both Plankton himself and an entirely different character that’s nonetheless related to him appear in the same episode or episodes that parody fairy tales, whereupon the characters essentially "play" otherwise entirely different characters (e.g. Plankton and the Beanstalk).

All episodes are listed by production order unless an episode has only one segment broadcast at the moment (upcoming episodes with available screenshots are acceptable).

Season 14

Appearances in this season: 7

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
294		Single-Celled Defense	November 2, 2023	Danny Giovannini	Sick of being stepped on, Plankton learns self-defense from Sandy.
297		Blood is Thicker Than Grease	February 21, 2024 (Nicktoons) July 15, 2024 (Nickelodeon)	Luke Brookshier	Plankton’s family open their own restaurant...directly next to the Chum Bucket.
299		Tango Tangle	February 20, 2024	Mr. Lawrence	Plankton and Karen take dance lessons and quickly become top of the class.
300		PL-1413	July 15, 2024	Danny Giovannini	Plankton travels two thousand years into the future and finds a few unfamiliar faces.
302 + 303		Kreepaway Kamp	October 10, 2024	Mike Bell Bobby Gaylor	While at Kamp Koral for a reunion, SpongeBob and the gang are stalked by a mysterious figure lurking in the shadows as campers start disappearing one by one!
305		The Dirty Bubble Bass	July 22, 2024	Luke Brookshier	Bubble Bass and the Dirty Bubble team up to become Bikini Bottom’s nastiest nefarious nuisance.
305		Sheldon SquarePants	July 23, 2024	Andrew Goodman	Plankton joins the SquarePants family in the hope of becoming closer with SpongeBob (and the secret formula).

Season 15

Appearances in this season so far: 5

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
307		Sammy Suckerfish	July 24, 2024	Mr. Lawrence	When the Krusty Krab is left filthy, a magical fish teaches SpongeBob how to keep surfaces look spiffy, lickety split.
312		Dome Alone	February 14, 2025	Andrew Goodman	While stuck in her dome, Sandy suspects Plankton’s up to no good and recruits Patrick to investigate.
314		A Taste of Plankton	February 28, 2025	Luke Brookshier	Plankton tries to get a taste of the secret formula by attaching himself to SpongeBob’s tongue.
315		Firehouse Bob	March 7, 2025	TBA	SpongeBob, Patrick, and Squidward feel the heat when they become volunteer firefighters.
316		Pablum Plankton	March 14, 2025	TBA	Plankton wins a "cutest baby" contest and becomes the face of a baby food brand.