Sheldon J. Plankton

Sheldon J. Plankton, more commonly known as Plankton (born November 30, 1942, original planned August 21, 1961) is one of the ten main characters of the *SpongeBob SquarePants* franchise. He is a planktonic copepod who runs the Chum Bucket restaurant alongside Karen, a waterproof computer who is his sidekick and wife. The Chum Bucket is highly unpopular in Bikini Bottom because it serves chum, a type of bait made from fish meat.

## SpongeBob SquarePants

Season One:

* Plankton!
* Culture Shock
* F.U.N
* Sleepy Time
* Valentine's Day (Non-speaking cameo)
* Walking Small

Season Two:

* Imitation Krabs
* Life of Crime (Mentioned)
* Christmas Who? (Cameo)
* Welcome to the Chum Bucket
* Band Geeks
* The Fry Cook Games

Season Three:

* The Algae's Always Greener
* Mermaid Man and Barnacle Boy IV (Cameo)
* Snowball Effect (Cameo)
* Krusty Krab Training Video
* Party Pooper Pants
* Plankton's Army
* The Sponge Who Could Fly
* SpongeBob Meets the Strangler (Cameo)

Season Four:

* Fear of a Krabby Patty
* Krabs vs. Plankton
* Dunces and Dragons (Ancestor appears instead)
* Eenemy In-Law
* Mermaid Man & Barnacle Boy VI: The Motion Picture
* Patrick SmartPants (Cameo)
* Wishing You Well
* New Leaf
* Best Frenemies

Season Five:

* Friend or Foe
* Spy Buddies
* Krabs a la Mode
* Bucket Sweet Bucket
* Goo Goo Gas
* Atlantis SquarePantis
* Mermaid Man vs. SpongeBob
* 20,000 Patties Under the Sea
* Banned in Bikini Bottom
* Stanley S. SquarePants

Season Six:

* Krabby Road
* Spongicus
* Patty Caper
* Plankton's Regular
* The Krabby Kronicle
* Komputer Overload
* Chum Bucket Supreme
* Single Cell Anniversary
* Truth or Square
* Chum Caverns

Season Seven:

* Tentacle-Vision
* Someone's in the Kitchen with Sandy
* The Inside Job
* Greasy Buffoons
* SpongeBob's Last Stand
* One Coarse Meal
* The Play's the Thing (Cameo)
* Rodeo Daze
* Gramma's Secret Recipe
* Welcome to the Bikini Bottom Triangle
* The Main Drain
* The Great Patty Caper
* That Sinking Feeling (Cameo)
* Buried in Time
* Shellback Shenanigans
* Perfect Chemistry

Season Eight:

* The Other Patty
* Drive Thru
* Frozen Face-Off
* Squidward's School for Grown-Ups (Cameo)
* Sweet and Sour Squid
* A SquarePants Family Vacation (Cameo)
* Walking the Plankton
* Plankton's Good Eye
* The Krabby Patty That Ate Bikini Bottom
* Fiasco!
* Free Samples
* Karen 2.0
* For Here or to Go
* It's a SpongeBob Christmas!
* Super Evil Aquatic Villain Team Up is Go!
* Chum Fricassee
* The Good Krabby Name (Cameo)
* Move It or Lose It
* Hello Bikini Bottom! (Cameo)

Season Nine:

* Squirrel Record
* Eek, an Urchin!
* Jailbreak!
* Evil Spatula
* It Came from Goo Lagoon
* Plankton's Pet
* Company Picnic
* Married to Money
* CopyBob DittoPants
* Lame and Fortune
* Goodbye, Krabby Patty?
* Pineapple Invasion
* Salsa Imbecilicus
* Mutiny on the Krusty (Non-speaking cameo)

Season Ten:

* Mimic Madness
* House Warming
* Plankton Gets the Boot
* Burst Your Bubble
* Plankton Retires
* The Incredible Shrinking Sponge
* Feral Friends (Deleted scene)

Season Eleven:

* Spot Returns
* Spin the Bottle
* The Legend of Boo-Kini Bottom
* No Pictures Please
* Krabby Patty Creature Feature
* Teacher's Pests
* Fun-Sized Friends (Mentioned)
* Grandmum's the Word
* Bottle Burglars
* Shopping List
* Patnocchio
* Plankton Paranoia
* Call the Cops
* Surf N' Turf (Cameo)
* Appointment TV
* Karen's Virus
* The Grill is Gone
* Girl's Night Out

Season Twelve:

* Gary & Spot
* The Krusty Slammer
* King Plankton
* Plankton's Old Chum
* The Krusty Bucket
* Sandy's Nutty Nieces (Likeness only)
* Karen's Baby
* Senior Discount
* SpongeBob's Big Birthday Blowout
* Handemonium
* The Ghost of Plankton
* My Two Krabses
* Hiccup Plague
* The Hankering
* Who R Zoo?
* Kwarantined Krab
* Plankton's Intern
* Dream Hoppers (Non-speaking cameo)

Season Thirteen:

* A Place for Pets
* Lockdown for Love
* Goofy Scoopers (Mentioned)
* Something Narwhal This Way Comes
* C.H.U.M.S
* SpongeBob's Road to Christmas
* There Will Be Grease
* Sea-Man Sponge Haters Club
* Say Awww!
* Captain Pipsqueak

## Kamp Koral: SpongeBob's Under Years

Season One:

* The Jellyfish Kid
* Quest for Tire
* Kitchen Sponge
* The Treasure of Kamp Koral
* Midnight Snack Attack
* What About Meep?
* Camp SpongeBob
* Game Night
* Gimme a News Break
* Wise Kraken
* Squatch Swamp
* The Ho! Ho! Horror!

## The Patrick Star Show

Season One:

* Late for Breakfast

## Shorts

* How The You-Know-Who Stole You-Know-What
* Plankton's Holiday Hits
* Can't Swim
* Remodeling
* Loop dee Loop
* Plankton Pays
* SpongeBob's Legendary Dance Party
* Plankton's Color Nullifier

## Sheldon J. Plankton

### Aliases

Plankton The Amazing Plankton

Mr. Plankton

Clay

Dr. Peter Lankton

Man Ray

Professor Plankton

Plankton SquarePants

Plankton Star

Great-grammyma

Sheldon R. Shellcleaner

Gary the Snail

Planktonella

Plank-Ton

Cashina

Genie the Grant Wisher

Ray Ray

Patrick's conscience

King Plankton

The Ghost of Plankton

Sandy Cheeks

Plankton Lou Who

Dream Plankton

Mr. Plankton

Captain Pipsqueak

### Relatives

Planktonamor (Ancestor) Karen the Crystal Ball (Relative)

Dead Eye Plankton (Ancestor)

Karen Plankton (Wife)

Clem Plankton (Cousin)

Rupert Plankton (Cousin)

Zeke Plankton (Cousin)

Rufus Plankton (Cousin)

Jeke Plankton (Cousin)

Billy Bob Plankton (Cousin)

Billy Jim Plankton (Cousin)

Billy Billy Bo Willy Banana Fana Fo Filly Plankton (Cousin)

Toad Plankton (Cousin)

Enis Plankton (Cousin)

Doug Plankton (Cousin)

Leisha Plankton (Cousin)

Joe Plankton (Cousin)

Rainchild Plankton (Cousin)

Marvin (Cousin)

Papa Plankton

Mama Plankton

Grand Dad Plankton

Lily Plankton (Grandmother)

Fredrick (Father-in-law)

E.M.I.L.P (Mother-in-law)

Chip Plankton II (Son)

Alvin (Granduncle)

Moe Bros

Basia (Paternal great grandmother)

Seymour (Paternal great-grandfather)

Silas Plankton (Paternal uncle)

### Affiliation

Chum Bucket Krusty Krab (Chum Caverns)

League of E.V.I.L (Formerly)

### Occupation

Co-owner of Chum Bucket Founder of Chum Bucket

Worker at Krusty Krab (Chum Caverns)

## Biographical information

### Date of birth

November 30, 1942 August 21, 1961 (Original plan)

## Appearances

### Appears in

SpongeBob SquarePantsKamp Koral: SpongeBob's Under Years

The Patrick Star Show

The SpongeBob Movie

The SpongeBob Movie: Sponge Out of Water

The SpongeBob Movie: Sponge on the Run