Encyclopedia SpongeBobia


Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
Spoiler alert!
Warning! This article contains spoilers of an episode that has recently aired in the United States. Do not continue reading if you wish not to be spoiled.

Plankton was first created by Stephen Hillenburg as a potential villain for the show and was included in his series bible in 1996. However, he later feared that Plankton's stories would get tedious and predictable. During the production of season 1, Hillenburg demoted Plankton from a main character to a minor one; he insisted that Plankton would work better as a one-time guest star.[1] However, Doug Lawrence loved the character. He used his writing and acting skills to prove that Plankton could work as a major antagonist. If Lawrence did not have a dual role as both the voice and writer for Plankton, his character would never have become a major villain.[2]


Interview with Mr. Lawrence about Plankton's origins

Doug Lawrence summarized Plankton's origins in 2015, saying that he "was only supposed to be in one or two episodes, but I was a writer on the show and I really liked this character."[1] Following his first voice recording as Plankton, Lawrence wrote some of his own ideas for the character and passed them to Hillenburg.[1] From then on, Plankton began to appear more often. Lawrence's most notable contribution was giving a personality to Plankton's "waterproof computer," named Karen after Stephen Hillenburg's wife.[3]

Doug Lawrence decided that Plankton and Karen should be an inseparable duo, with Karen as the brains of the operation, always supplying Plankton with evil plans. Lawrence said: "I want more Karen on the show ... The married life of an evil genius is the funniest thing to me, so in that regard [Karen] definitely enhances Plankton’s stories making him more than just your typical bad guy."[4]

The SpongeBob SquarePants Movie 844

Plankton and Karen promoted to the "Main Cast" section.

Doug Lawrence says that Plankton and Karen finally became main characters after the third season. The credits of the 2004 movie were the first time that the SpongeBob franchise ever billed a "Main Cast" in its credits. Both Plankton and Karen were both officially promoted to main characters in the film's credits. Since then, their stories have been one of the show's most popular and important elements. Plankton has also appeared in numerous tie-in books, comics, and video games.


SpongeBob SquarePants[]

Note: In the first three seasons, Plankton and Karen were not main cast members yet.

Image # Episode Role in episode
Season 1
Plankton! 194
"Plankton!" (trga) Major/Debut; he takes control of SpongeBob's brain to attempt to steal the Krabby Patty secret formula.
Culture Shock 131
"Culture Shock" (trga) Minor; he does a magic act for a talent show in the Krusty Krab, attempting to steal a Krabby Patty.
F.U.N. 079
"F.U.N." (trga) Major; he acts like he is lonely to get close to SpongeBob, so he could eventually steal a Krabby Patty.
Sleepy Time 190
"Sleepy Time" (trga) Supporting; he wakes up from a dream where SpongeBob came in and stopped him from terrorizing Bikini Bottom.
Valentine's Day 015
"Valentine's Day" (trga) Non-speaking cameo; he is given a tiny heart.
Walking Small 040
"Walking Small" (trga) Major; he trains SpongeBob to become assertive so he can build his Mega Bucket.
Season 2
Imitation Krabs 110
"Imitation Krabs" (trga) Major; he disguises himself as a robot version of Mr. Krabs.
Life of Crime 024
"Life of Crime" (trga) Mentioned; SpongeBob mentions Mr. Krabs "borrowing" his lawnmower.
Christmas Who 174
"Christmas Who?" (trga) Cameo; Mr. Krabs gives him a fruit cake.
Welcome to the Chum Bucket 117
"Welcome to the Chum Bucket" (trga) Major; he forces SpongeBob to work at the Chum Bucket after winning a bet with Mr. Krabs.
Band Geeks 172
"Band Geeks" (trga) Supporting; he is part of Squidward's band.
The Fry Cook Games 087
"The Fry Cook Games" (trga) Major; he coaches Patrick who competes against SpongeBob in the Fry Cook Games.
Season 3
The Algae's Always Greener 061
"The Algae's Always Greener" (trga) Major; he switches lives with Mr. Krabs.
Mermaid Man and Barnacle Boy IV 200
"Mermaid Man and Barnacle Boy IV" (trga) Cameo; he returns to Bikini Bottom and sees that everyone is much smaller than him.
Snowball Effect 031
"Snowball Effect" (trga) Cameo; he is covered by snow.
Krusty Krab Training Video 154
"Krusty Krab Training Video" (trga) Supporting; he is stealing a Krabby Patty during one of the training exercises.
Party Pooper Pants 184
"Party Pooper Pants" (trga) Supporting; he is at SpongeBob's party.
Plankton's Army 049
"Plankton's Army" (trga) Major; he enlists his relatives to steal the Krabby Patty secret formula.
The Sponge Who Could Fly 261
"The Sponge Who Could Fly" (trga) Minor; he is saved by SpongeBob, and later asks him to help him spread the word of evil.
SpongeBob Meets the Strangler 151
"SpongeBob Meets the Strangler" (trga) Cameo; seen at SpongeBob's 100% on-time average surprise and birthday party.
Season 4
Fear of a Krabby Patty 129
"Fear of a Krabby Patty" (trga) Major; he plots to get the Krabby Patty secret formula from an exhausted SpongeBob.
Krabs vs. Plankton 112
"Krabs vs. Plankton" (trga) Major; he sues Mr. Krabs in a plot to run him out of business.
Dunces and Dragons 238
"Dunces and Dragons" (trga) Major, medieval ancestor appears instead
Enemy In-Law 062
"Enemy In-Law" (trga) Major; he falls in love with Mr. Krabs' mother.
Mermaid Man & Barnacle Boy VI The Motion Picture 110
"Mermaid Man & Barnacle Boy VI: The Motion Picture" (trga) Minor; he is part of the crew of SpongeBob and Patrick's Mermaid Man and Barnacle Boy movie.
Patrick SmartPants 062
"Patrick SmartPants" (trga) Cameo; studied by Patrick who became smart after falling off a cliff.
Wishing You Well 189
"Wishing You Well" (trga) Supporting; he throws a coin into the wishing well and makes a wish, which ends up coming true.
New Leaf 188
"New Leaf" (trga) Major; he turns the Chum Bucket into a gift shop.
Best Frenemies 161
"Best Frenemies" (trga) Major; Plankton and Mr. Krabs team up to try and steal the Kelp Shake recipe.
Season 5
Friend or Foe 249
"Friend or Foe" (trga) Major; the story of his and Mr. Krabs' past and their rivalry is told.
Spy Buddies 069
"Spy Buddies" (trga) Major; Mr. Krabs hires SpongeBob and Patrick to spy on him.
Krabs à la Mode 163
"Krabs à la Mode" (trga) Major; he freezes the Krusty Krab by turning down the thermostat, which ends up going the opposite of what he intended.
Bucket Sweet Bucket 018
"Bucket Sweet Bucket" (trga) Major; he gets SpongeBob, Patrick, and Squidward to fix up the Chum Bucket.
Goo Goo Gas 145
"Goo Goo Gas" (trga) Major; he creates a gas that turns adults into babies.
Atlantis SquarePantis 698
"Atlantis SquarePantis" (trga) Major; he journies to Atlantis with the gang.
Mermaid Man vs. SpongeBob 074
"Mermaid Man vs. SpongeBob" (trga) Major; he takes control of the minds of Mermaid Man and Barnacle Boy by using Professor Plankton's Mind Control Shampoo.
20,000 Patties Under the Sea 085
"20,000 Patties Under the Sea" (trga) Major; he tries to go around Bikini Bottom and sell chum.
Banned in Bikini Bottom 099
"Banned in Bikini Bottom" (trga) Major; he turns Mr. Krabs in to the police.
Stanley S. SquarePants 200
"Stanley S. SquarePants" (trga) Minor; Stanley is hired by him at the Chum Bucket and it gets destroyed.
Season 6
Krabby Road 145
"Krabby Road" (trga) Major; he starts a Band with SpongeBob, Patrick, and Squidward in an attempt to figure out the Krabby Patty secret formula.
Spongicus 091
"Spongicus" (trga) Major; he builds a coliseum and holds a gladiator show.
Patty Caper 076
"Patty Caper" (trga) Minor; he is interrogated by SpongeBob and Patrick about stealing the Krabby Patty Secret Ingredient.
Plankton's Regular 046
"Plankton's Regular" (trga) Major; he gets a customer that visits the Chum Bucket on a daily basis.
The Krabby Kronicle 134
"The Krabby Kronicle" (trga) Minor; he is mad that the Chum Bucket shut down due to a newspaper article published by SpongeBob.
Komputer Overload 060
"Komputer Overload" (trga) Major; he tries to replace Karen with new computer inventions.
Chum Bucket Supreme 149
"Chum Bucket Supreme" (trga) Major; he hires Patrick as the advertising director of the Chum Bucket.
Single Cell Anniversary 145
"Single Cell Anniversary" (trga) Major; SpongeBob helps him with an anniversary gift for Karen.
Truth or Square 481
"Truth or Square" (trga) Major; he attempts to sneak in the Krusty Krab and steal the Krabby Patty secret formula amid the distractions of the eleventy-seventh anniversary celebrations.
Chum Caverns 137
"Chum Caverns" (trga) Major; After falling into an underground cave, he opens a new restaurant there.
Season 7
Tentacle-Vision 148
"Tentacle-Vision" (trga) Minor; he crashes Squidward's TV show, causes some destruction, and advertises the Chum Bucket.
Someone's in the Kitchen with Sandy 070
"Someone's in the Kitchen with Sandy" (trga) Major; he steals Sandy's fur, disguises as her, and tries to get the Krabby Patty secret formula.
The Inside Job 050
"The Inside Job" (trga) Major; he explores SpongeBob's brain and tries to steal the Krabby Patty secret formula.
Greasy Buffoons 131
"Greasy Buffoons" (trga) Major; he serves greasy foods at the Chum Bucket.
SpongeBob's Last Stand 313
"SpongeBob's Last Stand" (trga) Major; he tries to run the Krusty Krab out of business by having a highway built over it.
One Coarse Meal 053
"One Coarse Meal" (trga) Major; Mr. Krabs has Pearl scare him, since he is severely afraid of whales.
The Play's the Thing 187
"The Play's the Thing" (trga) Non-speaking cameo; he is thrown among many other objects at SpongeBob and Squidward.
Rodeo Daze 127
"Rodeo Daze" (trga) Minor; he carries dynamite to the Krusty Krab, which goes off before he is able to get inside.
Gramma's Secret Recipe 105
"Gramma's Secret Recipe" (trga) Major; he pretends to be SpongeBob's great grandmother in an attempt to figure out the Krabby Patty secret formula.
Welcome to the Bikini Bottom Triangle 190
"Welcome to the Bikini Bottom Triangle" (trga) Minor; he is trapped in a jar after trying to steal the Krabby Patty secret formula.
The Main Drain 187
"The Main Drain" (trga) Supporting; him and Mr. Krabs try to discourage SpongeBob and Patrick from pulling the plug of the main drain.
The Great Patty Caper 375
"The Great Patty Caper" (trga) Major; he steals the key to the safe deposit box where the Krabby Patty Secret Formula is being held.
That Sinking Feeling 180
"That Sinking Feeling" (trga) Cameo; he gets excited that the Chum Bucket is the only restaurant still standing, but it ends up going underground as well.
Buried in Time 199
"Buried in Time" (trga) Supporting; he tries to get to the time capsule where a copy of the Krabby Patty secret formula is being held.
Shellback Shenanigans 038
"Shellback Shenanigans" (trga) Major; he impersonates Gary.
Perfect Chemistry 105
"Perfect Chemistry" (trga) Major; him and Sandy converse about their inventions, he tries to use as a way to steal the Krabby Patty secret formula.
Season 8
The Other Patty 077
"The Other Patty" (trga) Major; he teams up with Mr. Krabs to try and steal the Flabby Patty secret recipe.
Drive Thru 073
"Drive Thru" (trga) Minor; he tries to order a Krabby Patty from the drive thru at the Krusty Krab. After being run over, he resorts to selling chum nuggets.
Frozen Face-Off 057Frozen Face-Off 041
"Frozen Face-Off" (trga) Major; he orchestrates a sled race as a distraction so he can get into the Krusty Krab alone and break into the safe.
Squidward's School for Grown-Ups 027
"Squidward's School for Grown-Ups" (trga) Cameo; annoyed by SpongeBob and Patrick's game.
Sweet and Sour Squid 126
"Sweet and Sour Squid" (trga) Major; he tries to become friends with Squidward in an attempt to learn the Krabby Patty secret formula.
A SquarePants Family Vacation 019
"A SquarePants Family Vacation" (trga) Minor; he is at SpongeBob's home watching him present his vacation slides.
Walking the Plankton 080
"Walking the Plankton" (trga) Major; he takes Karen on a luxury cruise under the guise of a second honeymoon, while trying to intercept Krabs and SpongeBob's vacation.
Plankton's Good Eye 117
"Plankton's Good Eye" (trga) Major; he grows a second eye from SpongeBob's DNA, and finds himself unable to be evil.
The Krabby Patty That Ate Bikini Bottom 127
"The Krabby Patty That Ate Bikini Bottom" (trga) Minor; he worships the giant Krabby Patty that is running rampant through Bikini Bottom, before being swallowed by it.
Fiasco! 101
"Fiasco!" (trga) Major; he swipes a plate of Krabby Patty and condiment remains, not knowing that it is a priceless piece of art.
Free Samples 049
"Free Samples" (trga) Major; he sells Chum Burgers disguised as Krabby Patties to ruin the Krusty Krab's reputation.
Karen 2.0 133
"Karen 2.0" (trga) Major; he replaces Karen with an upgrade, Karen 2.
For Here or to Go 103
"For Here or to Go" (trga) Major; he wins a free Krabby Patty from a contest, which Mr. Krabs is determined to not let him have.
It's a SpongeBob Christmas! 179
"It's a SpongeBob Christmas!" (trga) Major; he gives his Jerktonium filled fruitcake to SpongeBob, who feeds it to everyone in Bikini Bottom, turning them into jerks.
Super Evil Aquatic Villain Team Up is Go! 154
"Super Evil Aquatic Villain Team Up is Go!" (trga) Major; he joins forces with Man Ray.
Chum Fricassee 042
"Chum Fricassee" (trga) Major; he gets Squidward to work at the Chum Bucket where he share's his grandmother's special recipe.
The Good Krabby Name 071
"The Good Krabby Name" (trga) Minor; SpongeBob's Krabby Patty suit falls on him.
Move It or Lose It 008
"Move It or Lose It" (trga) Major; him and Mr. Krabs try to get people to sign their petitions to determine which of their restaurants is to be bulldozed.
Hello Bikini Bottom! 397
"Hello Bikini Bottom!" (trga) Minor; he tries to buy the Krusty Krab from a pawn shop.
Season 9
Squirrel Record 061
"Squirrel Record" (trga) Minor; Sandy and SpongeBob get raw chum from him.
Eek, an Urchin! 138
"Eek, an Urchin!" (trga) Major; SpongeBob enlists his help in an effort to try and catch a sea urchin.
Jailbreak! 072
"Jailbreak!" (trga) Major; When he is imprisoned, he joins forces with his cellmates to break out of jail and steal the Krabby Patty secret formula.
Evil Spatula 075
"Evil Spatula" (trga) Major; he gives SpongeBob a spatula that secretly spied on him in an attempt to steal the Krabby Patty secret formula.
It Came from Goo Lagoon 294
"It Came from Goo Lagoon" (trga) Major; he tries to harness the power of a giant purple goo bubble in an attempt to steal the Krabby Patty secret formula.
Plankton's Pet 200
"Plankton's Pet" (trga) Major; he gets a pet amoeba named Spot.
Company Picnic 155
"Company Picnic" (trga) Major; he hosts his own company picnic in direct competition with the Krusty Krab picnic.
Married to Money 044
"Married to Money" (trga) Major; he disguises himself as Cashina to get the secret formula.
CopyBob DittoPants 097
"CopyBob DittoPants" (trga) Major; he makes clones of SpongeBob in an attempt to learn the Krabby Patty recipe.
Lame and Fortune 157
"Lame and Fortune" (trga) Major; he makes fortune cookies that come true.
Goodbye, Krabby Patty 228
"Goodbye, Krabby Patty?" (trga) Minor; he tries to steal the Krabby Patty secret formula. SpongeBob does not stop him, revealing they're blank souvenirs.
Pineapple Invasion 137
"Pineapple Invasion" (trga) Major; he tries to steal the Krabby Patty secret formula, which is being hidden in SpongeBob's home.
Salsa Imbecilicus 047
"Salsa Imbecilicus" (trga) Major; His Salsa Imbecilicus makes most of the town, including himself, dumb.
Mutiny on the Krusty 112
"Mutiny on the Krusty" (trga) Non-speaking cameo; SpongeBob throws him out of a cupboard.
Season 10
Mimic Madness 068
"Mimic Madness" (trga) Supporting; SpongeBob imitates him.
House Worming 102
"House Worming" (trga) Minor; he tries to help SpongeBob with his worm problem.
Krusty Katering 035
"Krusty Katering" (trga) Cameo as piñata
Plankton Gets the Boot 082
"Plankton Gets the Boot" (trga) Major; Karen kicks him out of the Chum Bucket, so SpongeBob teaches him how to be nice.
Burst Your Bubble 082
"Burst Your Bubble" (trga) Minor; he has his own bubble boat.
Plankton Retires 146
"Plankton Retires" (trga) Major; he shuts down the Chum Bucket and moves to another town, which makes Mr. Krabs suspicious.
The Incredible Shrinking Sponge 146
"The Incredible Shrinking Sponge" (trga) Minor; A tiny SpongeBob is flung to the Chum Bucket and lands on him.
"Feral Friends" (trga) Deleted scene; In the scene, Plankton is waiting for Karen to bring his dinner, but Neptune's Moon turns him into a feral copepod. When Karen brings his food over, she mistakes Plankton for a bug and squashes him with a flyswatter. She then flicks the splattered remains away.[5]
Season 11
Spot Returns 016
"Spot Returns" (trga) Major; he tries to use Spot's puppies to steal the Krabby Patty secret formula.
Spin the Bottle 007
"Spin the Bottle" (trga) Major; he disguises himself as a genie in a bottle, in a plan to steal the secret formula, but instead has to grant SpongeBob's friends' wishes.
The Legend of Boo-Kini Bottom 114
"The Legend of Boo-Kini Bottom" (trga) Supporting; Plankton and Karen are doing the haunted tour of the Krusty Krab. SpongeBob finds this funny as well, which deeply annoys Plankton and Karen. He joins forces with the Flying Dutchman where he becomes his ghoulish servant.
No Pictures Please 106No Pictures Please 189
"No Pictures Please" (trga) Supporting; Patrick, Rube, and some Krusty Krab customers step on Plankton. Later, he is seen hiding inside Rube's camera.
Krabby Patty Creature Feature 137Krabby Patty Creature Feature 156
"Krabby Patty Creature Feature" (trga) Supporting; he and Karen become Krabby Patty creatures, and SpongeBob climbs a tower of chum to get away from them.
Teacher's Pests 099
"Teacher's Pests" (trga) Major; he goes to Mrs. Puff's Boating School with Mr. Krabs.
Dialogue mention
"Fun-Sized Friends" (trga) Mentioned; he is mentioned when Patrick thinks that Mini SpongeBob and Mini Patrick are going to steal the Krabby Patty secret formula but SpongeBob tells him that he is thinking of Plankton.
Grandmum's The Word 103
"Grandmum's the Word" (trga) Major; he tells his grandma that he owns the Krusty Krab, but must keep the lie going when she comes to visit.
Bottle Burglars 043
"Bottle Burglars" (trga) Major; he gets the formula, but struggles to open the bottle.
Shopping List 195
"Shopping List" (trga) Major; he follows SpongeBob and Sandy as they collect Krabby Patty ingredients.
Patnocchio 073
"Patnocchio" (trga) Major; he acts as Patrick's conscience to steal a Krabby Patty.
Plankton Paranoia 122
"Plankton Paranoia" (trga) Supporting; he celebrates the anniversary of the first time he tried to steal the Krabby Patty secret formula.
Call the Cops 014
"Call the Cops" (trga) Major; he goes to jail for stealing the Krabby Patty secret formula.
Surf N' Turf 042
"Surf N' Turf" (trga) Minor; he steals the Krabby Patty secret formula but SpongeBob takes it back.
Appointment TV 117Appointment TV 162
"Appointment TV" (trga) Supporting; he helps SpongeBob after he misses the Mermaid Man and Barnacle Boy long-lost episode.
Karen's Virus 016
"Karen's Virus" (trga) Major; he gives SpongeBob directions on how to find the virus inside Karen.
The Grill is Gone 123
"The Grill is Gone" (trga) Minor; he joins the race down Murder Hill for the grill in order to obtain the Krabby Patty secret formula, but his cart is easily destroyed by Mr. Krabs.
Girls' Night Out 081Girls' Night Out 198
"Girls' Night Out" (trga) Supporting; Karen, Sandy, and Mrs. Puff prank him by dressing up as Mr. Krabs and telling him that they will give him the formula. Later, he and Mr. Krabs fight as amoebas.
Season 12
Gary & Spot 042
"Gary & Spot" (trga) Minor; he is sleeping when Gary sneaks into his and Karen's bedroom to pick up Spot.
The Krusty Slammer 133The Krusty Slammer 199
"The Krusty Slammer" (trga) Major; he gets arrested and goes to the jail at the Krusty Krab, but he gets released not long after. Later, Mr. Krabs is imprisoned at the Chum Bucket as Plankton throws chum at him.
King Plankton 101
"King Plankton" (trga) Major; he declares himself the king of SpongeBob's aquarium.
Plankton's Old Chum 180
"Plankton's Old Chum" (trga) Major; he tricks SpongeBob into hiding his rotten Chum all over Bikini Bottom.
The Krusty Bucket 052
"The Krusty Bucket" (trga) Major; he creates a hybrid clone of himself and Mr. Krabs, PlanKrab, who takes over their restaurants. Plankton and Krabs team up to get rid of PlanKrab.
Sandy's Nutty Nieces 083
"Sandy's Nutty Nieces" (trga) Likeness only; Macadamia, Hazelnut, and Pistachio spray, ketchup, mustard and relish on Mr. Krabs to make him look like Plankton.
Karen's Baby 034
"Karen's Baby" (trga) Major; him and Karen have a son named Chip.
Senior Discount 191
"Senior Discount" (trga) Minor; Mr. Krabs and Old Man Jenkins stay at the Chum Bucket, which he is not happy about.
SpongeBob's Big Birthday Blowout 447
"SpongeBob's Big Birthday Blowout" (trga) Supporting; he helps plan a surprise party for SpongeBob's birthday.
Handemonium 111
"Handemonium" (trga) Major; he brings the Chum Bucket glove to life.
The Ghost of Plankton 018The Ghost of Plankton 040
"The Ghost of Plankton" (trga) Major; he becomes a ghost to try and steal the Krabby Patty secret formula, but he needs training from the Flying Dutchman before doing so.
My Two Krabses 087
"My Two Krabses" (trga) Minor; SpongeBob and Patrick buy chum from him.
Hiccup Plague 116
"Hiccup Plague" (trga) Minor; he catches a case of the hiccups.
The Hankering 131
"The Hankering" (trga) Supporting; he gives Mr. Krabs chum in exchange for the Krabby Patty secret formula.
Who R Zoo 163
"Who R Zoo?" (trga) Minor; he and Karen try to avoid the bubble penguins that have invaded the Chum Bucket.
Kwarantined Krab 045
"Kwarantined Krab" (trga) Minor; when the Krusty Krab is under lockdown due to a flu being detected in the Krusty Krab, Plankton escapes via the restaurant's funnel, but is immediately vaporized by a hazmat fish, prompting everyone to stay inside.
Plankton's Intern 116
"Plankton's Intern" (trga) Major; he hires Pearl as an intern in an attempt to have help stealing the Krabby Patty secret formula.
Dream Hoppers 082
"Dream Hoppers" (trga) Non-speaking cameo; he is seen in the dream where he appears to have obtained the the formula with Mr. Krabs working for him.
Season 13
A Place for Pets 096A Place for Pets 172
"A Place for Pets" (trga) Minor; he gets inside Spot's body in an attempt to sneak into the Krusty Krab and steal the Krabby Patty secret formula. Later, he is shown during the Pets Are People Too song, where Spot is licking his eyeball, and Plankton is not happy.
Lockdown for Love 029
"Lockdown for Love" (trga) Major; After ruining a date with Karen, she puts the Chum Bucket on lockdown until he can prove his affection for her.
Goofy Scoopers 038
"Goofy Scoopers" (trga) Mentioned; name seen on the back of Patrick's head.
Something Narwhal This Way Comes 147
"Something Narwhal This Way Comes" (trga) Supporting; he calls his family to come help drive the Nearwhals away.
C.H.U.M.S 070
"C.H.U.M.S" (trga) Major; Plankton finds that he is worshipped by a group of living chum, and trains them to attack the Krusty Krab.
SpongeBob's Road to Christmas 273
"SpongeBob's Road to Christmas" (trga) Major; he travels to the North Pole with SpongeBob and Patrick.
There Will Be Grease 130
"There Will Be Grease" (trga) Major; he teams up with Mr. Krabs to sell Dr. Krabton's Miracle Everything Juice.
Sea-Man Sponge Haters Club 108
"Sea-Man Sponge Haters Club" (trga) Major; he is a member of the 'We Hate SpongeBob Club' and tells a story where he and Karen try to shoo SpongeBob out of the Chum Bucket.
Say Awww! 026
"Say Awww!" (trga) Major; in lieu of frustration over being seen as cute instead of evil, he builds a robot named Q.T.-π to punish anyone who says 'awww!', and he ends up getting trapped in it himself.
Captain Pipsqueak 153
"Captain Pipsqueak" (trga) Major; he joins the league of E.V.I.L.
Welcome to Binary Bottom 118
"Welcome to Binary Bottom" (trga) Likeness only; he appears as a wind-up robot named PlankBot.
You're Going to Pay...Phone 137
"You're Going to Pay...Phone" (trga) Minor; he owns the Krusty Krab after Mr. Krabs is hypnotized into giving him the deed.
Karen for Spot 113
"Karen for Spot" (trga) Supporting; he goes on a trip to the Doomsday Device Expo in Shell City and leaves Spot in the care of Karen.
The Flower Plot 103
"The Flower Plot" (trga) Major; he disguises as a flower shop owner named Petunia to steal the Krabby Patty secret formula.
SpongeBob on Parade 166
"SpongeBob on Parade" (trga) Major; he crashes the Bikini Bottom Parade in an attempt to steal the Krabby Patty secret formula from the Krusty Krab's float.
Delivery to Monster Island 085
"Delivery to Monster Island" (trga) Major; he and SpongeBob try to survive on Monster Island together.
Dialogue mention
"Friendiversary" (trga) Mentioned; Mr. Krabs fears that Plankton will scan his mind and know the combination to the safe that the secret formula is in.
Dopey Dick 026
"Dopey Dick" (trga) Likeness only; he appears as a parrot named Planky.
Plankton and the Beanstalk 004
"Plankton and the Beanstalk" (trga) Cameo; He narrates the beginning and a storybook version of him named Jack appears instead.
My Friend Patty 122
"My Friend Patty" (trga) Minor; the living Krabby Patty disturbs Plankton by trying to force him to eat it.
Season 14
Single-Celled Defense 128
"Single-Celled Defense" (trga) Major; he takes self-defense lessons from Sandy after being stepped on too many times.
Blood is Thicker Than Grease 146
"Blood is Thicker Than Grease" (trga) Major; he tries to sabotage his family's business.
Tango Tangle 175
"Tango Tangle" (trga) Major; he and Karen take tango lessons.
PL-1413 056
"PL-1413" (trga) Major; he gets stuck in a time capsule and travels 2,000 years into the future.

Kamp Koral: SpongeBob's Under Years[]

Image # Episode Role in episode
Season 1
The Jellyfish Kid 084
"The Jellyfish Kid" (trga) Minor; he is seen working at the kitchen.
Quest for Tire 023
"Quest for Tire" (trga) Minor; he tells the campers about a food truck delivery.
Kitchen Sponge 101
"Kitchen Sponge" (trga) Major; he hires SpongeBob, leading to try to steal the formula.
The Treasure of Kamp Koral 121
"The Treasure of Kamp Koral" (trga) Minor; he is seen serving food to the campers.
Midnight Snack Attack 149
"Midnight Snack Attack" (trga) Major; when SpongeBob and Patrick eat a secret snack experiment, Plankton must reverse the monstrous side effects.
What About Meep 034
"What About Meep?" (trga) Minor; he is seen serving food.
Camp SpongeBob 130
"Camp SpongeBob" (trga) Minor; he is the only staff member to be at camp.
Game Night 112
"Game Night" (trga) Major; he, Mr. Krabs, and Mrs. Puff sneak away to play a board game, but they have to hide from SpongeBob.
Gimme a News Break 105
"Gimme a News Break" (trga) Minor; he is accused of being an alien.
Wise Kraken 006
"Wise Kraken" (trga) Major; Plankton hates comedy and tries to stop the performances.
Squatch Swap 135
"Squatch Swap" (trga) Minor; he is eaten by Stompy.
The Ho! Ho! Horror! 200
"The Ho! Ho! Horror!" (trga) Minor; Santa Claus steps on him at the end of the episode.
Dialogue mention
"Outhouse Outrage" (trga) Mentioned; Patrick dumps Plankton's chili in the outhouse.
Help Not Wanted 158
"Help Not Wanted" (trga) Supporting; Cecil takes over his job as chef, and Plankton teams up with Mr. Krabs and Mrs. Puff to get him out.
Camp Spirit 098
"Camp Spirit" (trga) Minor; Maisey Manes steals his eclairs.
Hill-Fu 139
"Hill-Fu" (trga) Cameo; Patrick accidentally crushes him.
Sun's Out, Fun's Out 177
"Sun's Out, Fun's Out" (trga) Minor; he is able to withstand the heat by hiding in the camp's freezer, but when it breaks, he goes to Mr. Krabs' cabin.
Helter Shelter 052
"Helter Shelter" (trga) Cameo; SpongeBob, Patrick, and Sandy annoy him after being kicked out of their cabin.
The Switch Glitch 084
"The Switch Glitch" (trga) Supporting; he is frustrated by Patrick, in Karen's body, messing up his experiments, and helps SpongeBob and Sandy swap their bodies back.
Prickly Pests 199
"Prickly Pests" (trga) Cameo; he is left behind at the old Kamp Koral after a new one is built, and Urnie walks in on him using the bathroom.
Are You Smarter Than a Smart Cabin 200
"Are You Smarter Than a Smart Cabin?" (trga) Minor; S.A.L. helps him cook a stew.
Deep Sea Despot 020
"Deep Sea Despot" (trga) Minor; he cooks food that gives the counselors food poisoning.
The Perfect Camper 069
"The Perfect Camper" (trga) Minor; he is one of the judges for the Kamp Koral Summer Games.
Eye of the Hotdog 144
"Eye of the Hotdog" (trga) Minor; he unknowingly uses expired hot dogs for the eating contest.
The Taste of Defeat 156
"The Taste of Defeat" (trga) Major; he tries to sabotage Narlene and Nobby's new restaurant.
Scaredy Squirrel 017
"Scaredy Squirrel" (trga) Cameo; his picture appears on the "Meet the Counselors" board.
In a Nut's Shell 083
"In a Nut's Shell" (trga) Minor; he gets pranked by Karen, and suggests taking revenge on Mr. Krabs for skipping out on Skylarking Day.
Season 2
Mad Science Squirrel 099
"Mad Science Squirrel" (trga) Major; he gets Sandy to fix his mayhem machine.
To Pop a Bubble 065
"To Pop a Bubble" (trga) Minor; he nearly gets hit by a javelin.
Low Falutin' 072
"Low Falutin'" (trga) Minor; he hires and promptly fires Roh and Rea from his canteen.
Calling Some Monsters 029
"Calling Some Monsters" (trga) Minor; he refuses to sell SpongeBob and Patrick his transformation-inducing cupcakes.
Krabsy the Klown 009
"Krabsy the Klown" (trga) Two cameos; he is the sword swallower at Pearl's party and later suggests he make an electric eel balloon animal.
Patrick's Star 149
"Patrick's Star" (trga) Cameo; Gunther lights him on fire.
A Finful of Sand Dollars 012
"A Finful of Sand Dollars" (trga) Minor; he serves root beer for Western Day.
Parasite Pals 171
"Parasite Pals" (trga) Supporting; his food gives SpongeBob a parasite, and near the end of the episode, he has to hunt it down.
End of Summer Daze 061
"End of Summer Daze" (trga) Minor; he celebrates the end of summer.

The Patrick Star Show[]

Image # Episode Role in episode
Season 1
Late for Breakfast 066
"Late for Breakfast" (trga) Minor; he is in a commercial advertising the Chum Bucket.
Just in Time for Christmas 145
"Just in Time for Christmas" (trga) Cameo; he appears at the carnival as the "World's Largest Plankton."
The Patrick Show Sells Out 045
"The Patrick Show Sells Out" (trga) Major; he fights Mr. Krabs over who gets to advertise on Patrick's show.
Get Off My Lawnie 184
"Get Off My Lawnie" (trga) Cameo (non-speaking); he appears on The Granny Tentacles Show.
Season 2
Chum Bucket List 042
"Chum Bucket List" (trga) Supporting; he takes Patrick's order and serves him chum.
Is There a Director in the House 062
"Is There a Director in the House?" (trga) Minor; he is one of Patrick's replacement directors.
Best Served Cold 060
"Best Served Cold" (trga) Minor; he kicks Patrick's enemies out of the Chum Bucket for not ordering anything.


Image Short Role in short
How The You-Know-Who Stole You-Know-What! 022 "How The You-Know-Who Stole You-Know-What!" (trga) Minor; he appears as "Plankton Lou Who" and asks Angelica what she's doing.
PHH9 "Plankton's Holiday Hits" (trga) Major; he sings parodies of Christmas songs.
Can't Swim 008 "Can't Swim" (trga) Supporting; he saves Mr. Krabs from drowning when they were younger.
Remodeling 004 "Remodeling" (trga) Supporting; him and Mr. Krabs build a sandcastle, which gets destroyed by a bully.
Loop dee Loop 04 "Loop dee Loop" (trga) Minor; he almost gets run over by a steam roller, but Mr. Krabs saves him when they were younger.
Plankton Pays 017 "Plankton Pays" (trga) Major; he gets injured, taken to the Bikini Bottom Jellyfish Trauma Center, and gets stung by a ton of jellyfish.
SpongeBob's Legendary Dance Party 006 "SpongeBob's Legendary Dance Party" (trga) Cameo; he likes a dance that SpongeBob does.
Plankton's Color Nullifier 022 "Plankton's Color Nullifier" (trga) Major; he tries to stop SpongeBob from making a new colorful Krabby Patty.


Image # Movie Role in movie
The SpongeBob SquarePants Movie 066The SpongeBob SquarePants Movie 386
The SpongeBob SquarePants Movie (trga) Major; he frames Mr. Krabs for stealing King Neptune's crown and takes over Bikini Bottom, turning everyone into his minions.
The SpongeBob Movie Sponge Out of Water 454The SpongeBob Movie Sponge Out of Water 789
The SpongeBob Movie: Sponge Out of Water (trga) Major; he teams up with the gang and becomes a superhero to get the Krabby Patty secret formula back from Burger Beard.
The SpongeBob Movie Sponge on the Run 106The SpongeBob Movie Sponge on the Run 249
The SpongeBob Movie: Sponge on the Run (trga) Major; he learns from Karen that SpongeBob is the one who keeps foiling his plans. Later, he embarks on a journey to free SpongeBob and Patrick.