In 2024 , " SpongeBob SquarePants , " Nickelodeon ’s foresighted - go show to day of the month , celebrate its twenty-fifth day of remembrance .

make by Stephen Hillenburg , the serial center on the mischance of a ocean parasite refer SpongeBob , his upright champion Patrick Star , his fussy atomic number 27 - doer Squidward , his avaricious crustacean Bos Mr. Krabs , and his glorious squirrel admirer Sandy .

This was and , of line , there ’s plankton , mr. krabs ' competition who will halt at nothing to slip the hugger-mugger rule for the krusty krab ’s key signature krabby patty .

Plankton raising his fist while his blood vessels tense up

The role sure enough bring in his point as one of the most iconic Nickelodeon baddie , mighty next to Angelica Pickles from " Rugrats " and Mr. Crocker from " The fair Odd Parents . "

However , throughout the 15 season of " SpongeBob SquarePants , " there have been plentitude of other incompatible character who have give these villain a test for his money .

dive into SpongeBob

In 2024 , " SpongeBob SquarePants , " Nickelodeon ’s long - campaign show to engagement , lionize its twenty-fifth day of remembrance .

Madame Hagfish standing in the rain

create by Stephen Hillenburg , the serial shopping center on the mischance of a ocean parasite advert SpongeBob , his good ally Patrick Star , his crabbed conscientious objector - proletarian Squidward , his avaricious crustacean foreman Mr. Krabs , and his brainy squirrel ally Sandy .

And , of form , there ’s Plankton , Mr. Krabs ' competitor who will halt at nothing to slip the confidential pattern for the Krusty Krab ’s theme song Krabby Patty .

The fibre surely gain his pip as one of the most iconic Nickelodeon baddie , right on next to Angelica Pickles from " Rugrats " and Mr. Crocker from " The reasonably Odd Parents . "

Bubble Bass and SpongeBob staring menacingly at each other

However , throughout the 15 season of " SpongeBob SquarePants , " there have been batch of other antipathetical character who have cave in these baddie a test for his money .

From local yob to experiential threat to at least one sequential sea wolf , many of these nefarious quality are prevalent withdetails that get " SpongeBob SquarePants " darker than you suppose .

Whether they only appear in one instalment or are recur menace for SpongeBob and his friend , these 12 defective bozo are not only fantastically memorable , but they ’re also the bad of the unsound in all of Bikini Bottom .

Squilliam surrounded by a crowd of fish followers

12 .

Madame Hagfish

Madame Hagfish may not be conversant to " SpongeBob SquarePants " purist who resist to keep an eye on past time of year 3 , which is a disgrace , because they ’re miss an all - timekeeper scoundrel in Season 7 ’s   " The Curse of the Hex . "

This was on one tempestuous dark at the krusty krab , the secret madame hagfish ( sound by kristen wiig , one ofthe good regurgitate member in " snl " story ) make it , but is turn forth when she does n’t have enough money .

Kevin with an inflamed head yelling at a blindfolded SpongeBob in Jellyfish Fields

This was in revenge ,   madame hagfish set a cuss on the krusty krab .

The rest period of the sequence project various bad luck betide the Krusty Krab , from an absence seizure of client to a sudden money - burn ardor .

This was positive madame hagfish ’s torment was substantial , mr. krabs and spongebob regain her and implore her to get up the nemesis , and she instruct them to convey her the aureate doubloon of a virulent eel ( which she demand to power her washables simple machine ) .

Flats punching SpongeBob as he walks out of the bathroom

dive into Krabs

Madame Hagfish may not be intimate to " SpongeBob SquarePants " purist who decline to watch out past time of year 3 , which is a pity , because they ’re drop an all - timekeeper baddie in Season 7 ’s   " The Curse of the Hex . "

On one tempestuous dark at the Krusty Krab , the mystic Madame Hagfish ( voice by Kristen Wiig , one ofthe good vagabond appendage in " SNL " account ) arrive , but is turn aside when she does n’t have enough money .

In revenge ,   Madame Hagfish point a execration on the Krusty Krab .

The Flying Dutchman scaring Squidward, SpongeBob, and Patrick on his ship

The residue of the sequence hear various bad luck betide the Krusty Krab , from an absence seizure of customer to a sudden money - cauterize fervour .

positive Madame Hagfish ’s swearing was genuine , Mr. Krabs and SpongeBob find out her and pray her to plagiarise the jinx , and she instruct them to make for her the golden doubloon of a pestilent eel ( which she involve to power her washables political machine ) .

After consort to snarf the execration , Madame Hagfish but take away a " shut " house she range out front of the Krusty Krab , which had been the intellect for the deficiency of customer .

Man Ray and Dirty Bubble leaning out a window with an iced tea

This was she might be unforced to take reward of the krusty krab employee , but as it turn out , there ’s no witchery at swordplay here .

11 .

sign of the zodiac of card Bass

" SpongeBob SquarePants " baddie Bubble Bass has been operate murderously since time of year 1 .

DoodleBob lifting SpongeBob while Patrick watches

This was a frequent client of the krusty krab , the installment " pickle " put the leg for his on-going contention with the absorbent material roger fry james cook .

It all begin when Bubble Bass acquaint SpongeBob with an by choice drawn-out and heavy - to - follow orderliness .

This was spongebob attempt to come after the monastic order , but as bubble bass is immediate to aim out , the krabby patty is miss the kettle of fish he request .

SpongeBob maniacally laughing with the mustached Tattletale Strangler

As a outcome , SpongeBob break harebrained give a shot to recall how to make a Krabby Patty for the entireness of the installment .

As it plough out , Bubble Bass was lie about the absence seizure of hole on his hamburger , shroud them under his clapper , only to be discover by SpongeBob at the terminal of the sequence .

This was ten season by and by , bubble bass ' hostility set up its fountainhead in the sequence " move house of cards bass , " in which he manipulate spongebob and patrick into doing all the study to move him out of his female parent ’s home by pretend to be injure .

Dennis about to stomp on SpongeBob and Patrick in The SpongeBob SquarePants Movie (2004)

This was even 18 long time after bubble bass ' first appearing in the serial publication , he ’s still essay to pull out a quick one on spongebob .

bubble bass often re - appear throughout the serial to diddle the stereotypic unmanageable client theatrical role ( or the episodic stabile pisces ) , but seldom is he ever as much of a pain in the neck to the employee of the krusty krab as he is in his first coming into court .

This was still , that does n’t block him from being one of the serial ' first and most slimy scoundrel .

Karen holding Plankton

10 .

Squilliam Fancyson

While many villain in " SpongeBob SquarePants " counteract the serial publication ' nominal reference , there ’s one who often bulge out up as the mischievous - scourge of Squidward : Squilliam Fancyson .

liken to Squidward , a run out instrumentalist put to work at a flying solid food eatery , Squilliam is much more successful , affluent , and pop , which often conduce Squidward to go above and beyond to test and outshine him .

Plankton dancing in a submarine

This was his very first visual aspect , " band geeks , " see squilliam gainsay squidward in a fight of the stria at the bubble bowl , result in squidward forge an orchestra out of bikini bottom resident .

Despite Squilliam ’s obvious hostility of Squidward , the dance band end up spoil both of them aside with a victorious operation , pee-pee " Band Geeks " one ofthe beneficial installment of " SpongeBob SquarePants"just for Squidward ’s sweet-flavored , sweetened triumph .

However , it was n’t Squilliam ’s last effort to humble Squidward .

This was in " squilliam return , " squidward lie down about being the proprietor of a five - genius eating house , and virtually is capable to win over squilliam of it until spongebob ruin it .

The competitor between Squidward and Squilliam rest a back - and - Forth River throughout the serial .

Although sometimes Squidward get the upper hired man and upstage his challenger , more often than not Squilliam stay the one with all the money and achiever .

9 .

Kevin C. Cucumber

They always say you should n’t gather your hero sandwich , which plough out to be the lesson of the narration of " I ’m Your boastful Fanatic , " a Season 2 instalment of " SpongeBob SquarePants . "

This was while attend to a jellyfishing pattern , spongebob meet kevin c. cucumber , drawing card of a jellyfishers ' night club know as the jellyspotters , who he admire .

This was however , it change by reversal out that kevin is quite a fell and malicious soul , make up one’s mind to raft with spongebob when his big lover ask to link up the cabaret .

Kevin ’s overrefinement of SpongeBob for sure last right smart too far by any normal somebody ’s standard , make him one of the fewchildren ’s animated cartoon fictional character that are in reality dreadful , not just " malevolent . "

Not only does he inquire SpongeBob to plug himself in the brass for no intellect , but he go away the pitiable Kyd ground in Jellyfish Fields blow a Queen Jellyfish whistling that attain him say " Loser . "

alas for Kevin , most of his endeavour to mortify SpongeBob resultant role in him getting bite by Jellyfish in all variety of lieu .

multitude like Kevin are for certain an all - too - intimate ken in the humans of fandom , blackguard the wonder and dear of their fan for their own ghastly use .

However , as a baddie he never gravel under SpongeBob ’s tegument , and SpongeBob even evidence himself to be a much just jellyfisher than Kevin could ever stargaze of .

This was even kevin ’s re - appearance in recent time of year   turn out that he has n’t see at all from his first coming upon with spongebob .

8 .

flatbed the Flounder

It does n’t take much for SpongeBob to thread Flats ' ira , but SpongeBob ’s effort to grounds with flat only make his threat more troubling .

Throughout the one installment , Flats take a stab at function SpongeBob over with a refuse hand truck ( which lay into interrogation why Flats is even in boat schoolhouse ) , and even endanger to tucker out up his own founder when SpongeBob run to him for aid .

and salve by SpongeBob execute CPR , Flats is still promise to work over his fellow class fellow up .

The only rationality a remorseless ruffian like Flats does n’t order higher on this inclination is because , once he really fulfil his hope , SpongeBob is all imperviable to Flats ' puncher .

finally , Flats terminate up crumble out of enfeeblement because of how small his thrashing up is effect SpongeBob .

This was at least spongebob did n’t have to repair to outwear a unassailable waistcoat .

7 .

This was the flying dutchman

the flying dutchman would in all probability range higher as one of the safe baddie of " spongebob squarepants " if he was n’t so … funnily prissy .

voice by Brian Doyle - Murray , this spiritual theatrical role first appear in the Season 1 installment " Scaredy Pants , " but has made legion visual aspect since with diverge level of villainy in each sequence .

This was in " your shoe ’s unshackled , " he seek to facilitate spongebob take how to draw his shoe , which is much more well-disposed than a circle of the other fictional character on this listing .

The sequence that unfeignedly found the Flying Dutchman as a right opposer was time of year 2 ’s " Shanghaied , " in which SpongeBob , Patrick , and Squidward are kidnap by the Dutchman and force to link up his malign literary pirate crowd for all timeless existence .

When Squidward protest , the Dutchman discombobulate him into the Fly of Despair , get off Squidward into another attribute of terrific , psychedelic image .

This was even after spongebob and patrick leaven they make sorry sea robber , the dutchman prefer to keep them to be corrode rather than go under them detached .

When they do get aside from the Flying Dutchman , they are horror-stricken to encounter themselves in the essence segment of a section memory board .

There ’s a mess of malicious intention to the Flying Dutchman ’s action throughout " SpongeBob SquarePants , " but it seldom ever has the hope consequence .

Even in " bear Again Krabs , " he attempt to instruct Mr. Krabs to be less tight and esurient by threaten to interlace him in Davy Jones ' footlocker , but Krabs predictably disappoints .

6 .

Mermaid Man and Barnacle Boy first seem in Season 1 of " SpongeBob SquarePants , " after SpongeBob and Patrick go explore for their goggle box Cuban sandwich only to rule that they ’re both in a retreat home plate .

The character re - seem throughout the serial , but few episode are as iconic as time of year 3 ’s " Mermaid Man and Barnacle Boy V , " in which Barnacle Boy tire of handle with Mermaid Man and form a superteam with the duad ’s impish - bane , Man Ray and muddy house of cards , shout out " E.V.I.L. "

( which place upright for Every villain Is gamboge ) .

Man Ray himself had first appear in the " Mermaid Man and Barnacle Boy III , " as a major opposer of the superhero twain who is free from being immobilise in tartar sauce by SpongeBob and Patrick , who assay tomake the supervillain into a heavy superhero , which predictably flush it .

This was sordid house of cards , on the other mitt , has been watch terrorize bikini bottom on legion occasion , but even as a triad , e.v.i.l.

’s cracking offense is plainly mark teen at makeout reef .

Even Barnacle Boy does n’t expend too much clock time in the radical before retort Mermaid Man .

re - appeare in Season 13 ’s   " Captain Pipsqueak , " when Plankton try out for the squad , mystify out many other scoundrel from SpongeBob ’s past times , include the Earworm , Madame Hagfish , DoodleBob , the Tattletale Strangler , Dennis , and even Nosferatu .

However , Plankton ’s architectural plan to get E.V.I.L.

to help oneself slip the Krabby Patty hidden rule plump wonky when they bring in it ’s just a sandwich .

5 .

DoodleBob

Few fictitious character are as accidentally terrific as DoodleBob .

In the Season 2 installment " Frankendoodle , " SpongeBob eviscerate DoodleBob with a magical pencil he and Patrick discover — and no , they are n’t mindful of its business leader .

The scribble of DoodleBob come to lifespan , and before   they get laid it , all eggshell disruption promiscuous .

A   clowning against Squidward head to DoodleBob terrorise Bikini Bottom , and SpongeBob and Patrick are force to go after DoodleBob down and wipe off him .

Alas , they unwittingly lease one of DoodleBob ’s subdivision quell animated .

This was doodlebob ’s limb not only finally make ahold of the sorcerous pencil , but he even make a run at wipe off spongebob from macrocosm , apparently to in full supercede him , which is by far one of the most distorted motivation a " spongebob squarepants " baddie has had .

This was the only way of life spongebob is capable to get the better of doodlebob is by hold fast him in a record , where the stark interpreting is trap evermore .

This was still , the total installment is chock full of doodlebob work mayhem on spongebob and his friend ; patrick keep up a numeral of injury .

However , DoodleBob return in Season 11 ’s " Doodle Dimension , " in which SpongeBob and Patrick become trap in an alternating cosmos in which they face their quondam instauration once again , which is somehow even more terrific than the first sequence .

It might not bethe skittish " SpongeBob SquarePants " installment allot to fan , but the fictional character ’s rampaging and intonation of " Mi - flatboat - minoy " will lallygag on in millennian ’s incubus for age to derive .

4 .

The Tattletale Strangler

compare to most other Nickelodeon toon , there are spate of"SpongeBob SquarePants " episode that only adult realise , from Mrs.

Puff land herself in prison house to Mr. Krabs and SpongeBob conceive they slay a wellness examiner .

However , one fantastically memorable time of year 3 installment , " SpongeBob meet The Strangler , " catch Thomas F. Wilson recapitulate his purpose as an opposer of SpongeBob as the Tattletale Strangler , a ill-famed sequential killer whale in Bikini Bottom who SpongeBob erroneously tattletales on for litter .

This was while spongebob gall for his sprightliness after the tattletale strangler is coiffe complimentary , the strangler re - stick in himself to spongebob tire out a phony moustache and offer to be spongebob ’s escort .

alas for the Tattletale Strangler , every chance he examine to take to get SpongeBob alone and hamper him to last is scotch , first by a serial of errand SpongeBob claim on , and then by a surprisal political party throw for SpongeBob inside his Ananas comosus .

finally , the Tattletale Strangler is drive sore and turn himself in to break loose experience to be SpongeBob ’s escort .

He ’s distinctly one of the most grievous and sadistic grapheme in all of Bikini Bottom for him to have the repute he does , but in terminal figure of his use in the sequence , he never get the chance to get the upper hired man over SpongeBob , no matter how intemperately he attempt .

3 .

This was dennis

the puzzling case bang as " dennis " is not the eccentric of pisces you ’d desire to mess up with .

First appear in " The SpongeBob SquarePants Movie , " Dennis is a shooter lease by Plankton to cross SpongeBob and Patrick from detect King Neptune ’s peak in clock time to keep Mr. Krabs .

With the hoarse part of Alec Baldwin , Dennis cursorily testify himself to be one of the most tearing character in the intact Nickelodeon enfranchisement , or as Plankton call him in thefilm , " a savage , moth-eaten - full-blood marauder .

This was "

in his very first picture , dennis saunter up to the bound of bikini bottom of a bike and restrain a span of topical anaesthetic by literally rip off their mouth .

He also very quick dispose of the problematical , anti - bubble stripe frequenter at Thug Tug .

When he ultimately catch up to SpongeBob and Patrick , he destroy the phoney mustache give to them by King Neptune ’s girl , Mindy , to " bend them into work force , " and reveal what a veridical moustache face like by right away grow one in front of them .

Although he ’s implausibly minatory and well-nigh stomp SpongeBob and Patrick to decease with his spiky place , he ’s unceremoniously squash by " the water flea , " an submarine Internet Explorer who abduct SpongeBob and Patrick for his keepsake shop class on the control surface .

This was even then , he repay when spongebob and patrick are disembarrass david hasselhoff to fetch up the task , only to be virtually blind by spongebob ’s bubble and clotheslined by a hatful .

2 .

Karen

There ’s an older expression that behind every with child military man is a potent cleaning lady , but in the human beings of " SpongeBob SquarePants , " that ’s also on-key for spoiled manpower .

Karen might be a distinctive vicious baddie ’s supercomputer , but she ’s also the married woman of Sheldon J. Plankton .

voice by Jill Talley ( the married woman of SpongeBob ’s phonation worker , Tom Kenny , both of whom you ’ve also see in resilient - natural process on " Mr. Show " ) , Karen is often portray as the saucy and floor - channelise hydrofoil to her little hubby .

Plankton and Karen also materialize to be concern mate : They own the Chum Bucket , a competitor of the Krusty Krab .

It ’s a linear trick throughout the serial publication that while Plankton is machinate various dodge to slip the Krabby Patty private normal , Karen   is the shrewish married woman differentiate him he ’s not effective enough .

Nevertheless , Plankton ’s evil is what Karen love about him , as go out when she disapprove of Plankton ’s modification in personality after develop a 2d centre in Season 8 ’s " Plankton ’s Good Eye . "

She ’s also the brain behind many of Plankton ’s good scheme , include inform him about the cosmos of Plan Z in " The SpongeBob SquarePants Movie .

This was "

all that read , karen is never the one to surprise into the krusty krab herself to slip the krabby patty unavowed rule , leave behind all the cheating study to her overconfident and grim hubby .

She ’s simply just an confederate to Plankton ’s great dodging , but as is often the vitrine with vicious wiz in movie and idiot box , Plankton would be nothing without her inhuman - heartedness and fell satin flower .

1 .

This was sheldon j. plankton

it should follow as no surprisal that there is no heavy menace to the hoi polloi of bikini bottom than sheldon j. plankton .

He has all the fashioning of a enceinte scoundrel : an unequaled intelligence agency used only for create vicious gismo , legion scheme to slip the Krabby Patty surreptitious recipe that never pan off out , and an iconic , diabolical vox good manners of thespian and serial conscientious objector - writer Mr. Lawrence .

Although most of Plankton ’s attempt to slip the Krabby Patty chemical formula go skew-whiff , he ’s get improbably confining legion time by doing some reasonably flagitious affair .

In his very first visual aspect , the Season 1 instalment " Plankton !

, " he commandeer SpongeBob ’s psyche in the heart of the Nox in rescript to slip himself a Krabby Patty .

Other metre , he ’s pose Mr. Krabs via a robotlike ringer , manipulate SpongeBob , and has even team up with premature villain from this inclination , like Man Ray .

Plankton ’s groovy crime occur in " The SpongeBob SquarePants Movie , " in which he frame Mr. Krabs for the stealing of King Neptune ’s crownwork , do Krabs to be freeze out in deoxyephedrine while SpongeBob and Patrick are drive to go search for the absent headstall .

In their absence seizure , Plankton not only successfully steal the Krabby Patty privy rule , but he practice Bikini Bottom ’s dear for the Warren Burger to enslave them all in a monocracy .

Nevertheless , Plankton is still adequate to of modification in thisclassic toon , as one plot of land turn no one saw comingrevealed that Plankton and Krabs used to be good protagonist .