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* ''WesternAnimation/AladdinTheSeries'':
** [[PosthumousCharacter Destane]], the previous ruler of the Land of the Black Sand before Mozenrath usurped him, was apparently so vicious and powerful that, according to Iago, even Jafar himself steered clear of him. Mozenrath then takes over as TheDreaded when he overthrew Destane and turned him into one of his zombie-like slaves.
** Genie is terrified of the Mukhtar, and rightfully so, as they are a species whose very purpose is hunting and killing ''jinn''.
** Both Genie and Mirage are terrified of Chaos, a feline being who lives up to his name by causing chaos and mischief wherever he goes. He hates when things get too boring and predictable, and punishes anyone who dares to give him the slightest order.
* ''WesternAnimation/TheAmazingWorldOfGumball'':
** Tina is this to the students and faculty of Elmore Junior High. Understandable, considering she's a ''Tyrannosaurus rex'' in a school where many students could be easily killed or maimed even by a normal human. Though "The Fight" gives her the FreudianExcuse in which people only fear her because of her father, who is much scarier than her. She eventually began to grow out of it.
** Jamie is one as of Season 3, due to her being a BarbaricBully: her mere presence will make many of the students run away so they won't be beaten up.
** Gumball is terribly afraid of Ocho and is scared to tell him about his big intensity.
** Nicole is this to her family. She's by no means a bad person. She's actually one of the nicest characters on the show, [[BewareTheNiceOnes as long as you don't push her too far, in which case she's TERRIFYING]]. And if there's one thing her family is good at, it's pushing people too far.
* In the ''WesternAnimation/AmericanDad'' episode "Ricky Spanish", Roger's alternate persona Ricky is the most evil of his characters and everyone in town wants him dead. Even ''[[EvenEvilHasStandards Roger himself]]'' is [[EvilMeScaresMe freaked out about him]].
** Stelios Kontos, Stan's childhood bully who he's still terrified of, even as a grown man and member of the CIA.
** Played for laughs in the episode where a hadron collider had caused an apocalypse. As Stan was wandering post-apocalypse America, he kept hear about "The Two Hundred" that were feared to the point that everyone just ran away from them without question. It turned out The Two Hundred was really just [[Characters/AmericanDadRogerSmith Roger Smith]] roaming around with a fog machine, ominously calling out "The Two Hundred are coming," and [[MakesJustAsMuchSenseInContext stealing the spoons]] of those who fled in terror. [[spoiler: Turns out The Two Hundred was actually real. Rodger had been goofing off IN the hadron collider when it was activated, and in addition to causing an apocalypse, it caused 200 of his personalities to split into their own bodies.]]
* ''Franchise/AvatarTheLastAirbender'':
** [[Characters/AvatarTheLastAirbenderPrincessAzula Princess Azula]] from the original ''WesternAnimation/AvatarTheLastAirbender''. Being a Machiavellian [[TheChessmaster tactical genius]], she deliberately goes out of her way to [[HeroKiller solidify this image of herself]], believing in power and manipulation through fear and might. For much of the series, it works spectacularly, with even her Uncle Iroh showing fear of being in her clutches, and leading to her turning an entire GovernmentConspiracy group against their leader through sheer intimidation and force of personality alone. [[spoiler:Unfortunately for her, it stops working when Mai's love for Zuko, and Ty Lee's friendship with Mai, become stronger than their fear of her.]]
** Of course, even Azula cowers in the presence of her father, [[Characters/AvatarTheLastAirbenderFireLordOzai Fire Lord Ozai]].
** In ''WesternAnimation/TheLegendOfKorra'':
*** [[Characters/TheLegendOfKorraAmon Amon]], the leader of the Anti-bending Equalists, is this, thanks to a combination of his creepy masked appearance, his even creepier ([[EliteMooks and very competent]]) minions, and [[spoiler:his ability to permanently remove a person's bending.]] Korra is ''terrified'' of him and sees him in her nightmares.
*** To say nothing of the GodOfEvil of the franchise, [[SatanicArchetype Vaatu]], who becomes the BigBad of the second season. Of course, he last showed up so many millennia ago that few actually know who he is. Once they do, though, it's pretty clear Korra's the only one who can do anything and the world can only stare and go OhCrap at the final confrontation. Even his herald [[spoiler:Unalaq]] fears his retribution if the Avatar isn't brought to him, and Varrick acknowledges Vaatu as the greatest evil of all existence.
*** Everyone takes [[Characters/TheLegendOfKorraZaheer Zaheer]] and his cronies ''very'' seriously, even characters who are quite badass themselves. Once Zaheer himself escapes, the leaders of the other nations ''immediately'' put everyone they can trust on the job of guarding the other three. Also, Tenzin's reluctance to let Korra go to Republic City at the beginning of the series (which means she'd been stuck on Air Temple Island until her late teens!) proves to be because of these guys. Everyone was so worried about protecting her from their conspiracy ''even though they'd been in {{Tailor Made Prison}}s for some time'' that she had to ''really'' fight for the right to get out and start Avatar-ing.
*** [[Characters/TheLegendOfKorraKuvira Kuvira]], the BigBad of Book 4. During the TimeSkip between Books 3 and 4, she was tasked with restoring the Earth Kingdom and has quickly become someone to both respect and fear, earning the monkier of "The Great Uniter". This is most evident in the first episode where a group of bandits attack her train. One CurbStompBattle later, they realize exactly ''whose'' train they tried to rob and they're pratically soiling themselves and begging for mercy. [[spoiler: Bolin and Varrick later exploit this by threatening to report a guard to Kuvira if he didn't let them and a group of prisoners pass.]]
** The Avatars themselves qualify. ''Everyone'' runs from an Avatar in the Avatar State, even a comet-enhanced Ozai or Vaatu himself (who was imprisoned by the first Avatar using the Avatar State).
* [[Characters/DCAUBatman Batman]], as in virtually all incarnations, is this to the Gotham City underworld in ''WesternAnimation/BatmanTheAnimatedSeries'' and the rest of the Franchise/DCAnimatedUniverse.
** An episode of ''WesternAnimation/JusticeLeague'' set in the ''WesternAnimation/BatmanBeyond'' future where Bruce is in his 80's shows that he still has it and then some as an old man. After his present-day self attempts and fails to interrogate Ghoul Bruce casually remarks he can't believe he was ever that green and takes over. [[NothingIsScarier One cut to commercial later]] and Ghoul is a trembling mess who's telling Bruce everything, including that he [[TooMuchInformation wet the bed until he was 14]]. Yes, he without his costume or gadgets can even casually out-dread his younger tougher self!
** The latest Batman cartoon, tellingly enough, is titled ''WesternAnimation/BewareTheBatman''.
** An episode of ''WesternAnimation/JusticeLeague'' displays this beautifully. In "[[Recap/JusticeLeagueUnlimitedS3E5FlashAndSubstance Flash and Substance]]", Batman and [[ComicBook/NewGods Orion]] show up with Flash in a BadGuyBar... and without saying a word, the mere ''sight'' of Batman clears the entire place out in less than thirty seconds. ''Including'' the bartender, who sheepishly hides under his own counter just to not be in Batman's line of sight.
* ''WesternAnimation/{{Ben 10}}'':
** In a universe filled with Eldritch Abominations, Evil Sorcerers, Alien Invaders with Death Rays available on a large scale, Ghost Aliens, Evil Overlords, Monster Clowns and psychotic mutants amongst other things, [[Characters/Ben10Vilgax Vilgax]] is ''still'' considered the most dangerous being. Known for having conquered ten worlds, five others and created a black hole, he was in fact so feared in the Original Series that no organic life form was willing to work for him, forcing him to use MechaMooks as his personal army.
*** However, back on his home planet, he is actually a very beloved leader, and he has many PetTheDog and LickedByTheDog moments; Ben was utterly flabbergasted by this. It's to the point that a newer villain attacks in force, he decided to try to take out Vilgax to demoralize his people. (Spoiler alert: Vilgy kicked the assassins' asses. ''Without'' any of his usual weaponry.)
** Ma Vreedle. A heaping dose of crazy, mixed in with a deceptive streak of cunning and a mean punch. ''Nobody'' wants to mess with her. Even ''Vilgax'' is sent screaming off planet at the sight of her.
* ''ComicBook/BuckyOHareAndTheToadWars'': The toads are genetically pre-disposed to have a BringMyBrownPants moment whenever they see a Betelgeusian Berserker Baboon. When that vulnerability is neutralized... the toads still crap themselves at the thought of actually having to ''fight'' Betelgeusian Berserker Baboons.
-->'''Air Marshal:''' Wait a minute! Now, the goggles are a neat trick, but the Betelgeusian Berserker Baboons are our most formidable foes in the Aniverse!
* Just about everyone in ''WesternAnimation/BumpInTheNight'' is afraid of the Closet Monster, an animate pile of dirty clothes that often tries to harm the main characters.
* ''WesternAnimation/CodenameKidsNextDoor'':
** In the earlier seasons, Numbuh 86 serves as this to the KND as a whole, as her position as Head of Decommissioning means she can mindwipe anybody who crosses her, and her irrational temper is legendary. Her influence and reputation wanes in later episodes after being successfully outwitted too many times.
** In TheMovie, [[GreaterScopeVillain Grandfather]] was wildly feared by all kids during his reign, with only his younger son Numbuh 0 being the only one who stood up to him. When he's recommissioned, even the adult supervillains are utterly terrified of him including [[BigBad Father]]_his other son who recommisioned him, no less_ and spread his terror among the KND.
** Negative Numbuh 4 was initially this to the DNK in the MirrorUniverse episode, as they were all too scared of him to oppose his rule. However, once they find out he's a DirtyCoward who can't defend himself, they immediately turn against him.
* In WesternAnimation/DannyPhantom, Pariah Dark was the king of ghosts. He was so powerful, that when he was released, every ghost flees the Ghost Zone.
* Considering he had no issues with dropping Gosalyn off a building, one of those times when it wasn't PlayedForLaughs, there's a valid reason ''WesternAnimation/DarkwingDuck'' doesn't brush off Taurus Bulba.
** Negaduck is this to the other Fearsome Five members, using his ferocity and ruthlessness to keep them in line even though he's debatably the weakest member of the team - Bushroot and especially Liquidator have no reason to fear a chainsaw.
* Princess Fang, one of the protagonists of ''WesternAnimation/DaveTheBarbarian'', is known only as "the Great Destructor" to all bugs, ranging from small cockroaches to hordes of car-sized Blugelbeetles.
* In the ''WesternAnimation/EdEddNEddy'' episode "Ed, Pass it On", Eddy starts a rumor that his brother is coming home. While the younger kids are merely annoyed and/or curious, the older kids (namely Kevin and Rolf) react with ''abject terror''. [[spoiler:[[WesternAnimation/EdEddNEddysBigPictureShow The movie]] proves that there is a ''damned good reason'' for this.]]
** The Kanker sisters fill this role throughout the majority of the series proper; whenever they show up, the general reaction most of the kids have is to [[ScrewThisImOuttaHere get the hell out of Dodge]]. While the Eds are the target of their "affection" most of the time, they've proven repeatedly that the other kids are fair game, ''especially'' when their BerserkButton gets pressed. UnstoppableRage doesn't even ''begin'' to describe the carnage when that happens.
* ''WesternAnimation/TheFairlyOddParents'':
** Vicky, being a BabysitterFromHell, has this reputation to the kids she tortures, so much that any episode that ends with Vicky being arrested leads to celebration. Even [[AdultsAreUseless her own parents are utterly terrified of her.]]
** Timmy becomes this to the Yugopotamians because to them, GoodIsBadAndBadIsGood. Acts like skipping across a field of flowers, eating chocolate, and hugging a teddy bear are forms of torture for them, so Timmy being able to do all of them in succession makes him some kind of HumanoidAbomination to them.
* The ''WesternAnimation/FamilyGuy'' episode "A Fistful of Meg" has Mike Pulaski, a psychopathic bully capable of killing anyone who slights him. It's said that he once knifed a kid on the playground (then beat up the knife) and that he can watch ''Series/FridayNightLights'' without crying.
* Breach from ''WesternAnimation/GeneratorRex'' becomes this in "Lions and Lambs". Everyone who knows what Breach can do fears her. When Six notices the Providence troops are trembling, he asks Rex if they have any experience with Breach. Rex says that's the problem, shuddering as he remembers what Breach did to him.
* According to [[BigBookOfEverything Journal 3]], the most dangerous creature in ''WesternAnimation/GravityFalls'' is Bill Cipher, a demon that looks like the Eye of Providence with arms, legs, and a top hat. DO NOT SUMMON AT ALL COSTS!
* Mandy of ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy''. [[DependingOnTheWriter An odd example, in that how much people fear her seems to be directly rather than inversely correlated with how much of a danger she is to them]]. Irwin and Mindy, both of whom are non-{{Badass Normal}} human children with no powers, frequently and deliberately antagonize her without fear of consequence, and low-level monsters will often try to frighten her at first, but she'll usually scare them off, while Grim, the [[RealityWarper nigh-omnipotent]], [[CompleteImmortality immortal]] [[TheGrimReaper personification of death]], is ''terrified'' of her and will do anything she says.
* ''WesternAnimation/TheGhostAndMollyMcGee'' has [[TheGrimReaper The Chairman,]] as well as the Ghost Council members who accompany him. Able to send any ghost to the [[FateWorseThanDeath flow of failed phantoms]] on a whim, usually if they don’t meet their quota of scaring enough people. Every ghost seen in the series does their best to please them, and stay off their bad side. Illustrated quite nicely when several other ghosts are partying at Molly’s house, only to immediately clear the room in fear as soon as the council arrives.
* ''WesternAnimation/HazbinHotel''
** [[RedBaron Known as the "Radio Demon"]], Alastor is feared by most as an all-powerful tyrant who destroys anyone who stands in the way of his cryptic goals. On his first day in Hell alone he slaughtered so many demons (not just rank and file, but high-ranking Lords of Hell that had been in power for centuries) that he was instantly catapulted into a ranking position among Hell's nobility, and most would rather give him a wide berth than catch his attention in any way.
** Obviously at least scary is an older Overlord called Zestial in the episode "Scrambled Eggs". Everyone who so much as sees him and Alastor on the street (Alastor himself doesn't quite get this reaction) is struck with terror, including one demon ''setting himself on fire'' as a reaction. Even Alastor's permanent smile might look a little strained when he sees him, though beyond that, they just talk as friendly equals.
* ''WesternAnimation/HeManAndTheMastersOfTheUniverse2002'':
** Dragons are feared by ''everyone'' (good guys and bad guys alike) on Eternia for obvious reasons. A RunningGag in one episode had Orko squeak that he was afraid of them, only for someone else to tell him, "Who isn't?"
** Hordak is feared by everyone, even fellow villains Skeletor and King Hisss. Everyone does everything they can to stop him from returning to Eternia.
* ''[[WesternAnimation/HotWheelsBattleForce5 Hot Wheels: Battle Force 5]]'': [[spoiler: The Red Sentients, and Krytus in particular.]] In the Season 1 finale, Zemerik, known for being a calculating and cunning commander, outright loses it when he sees [[spoiler: Krytus]] restored, giving a BigNo as he sees him rising, before quietly saying “We’re doomed.” Zemerik outright calls [[spoiler: Krytus]] "the most malicious entity in the Multiverse." [[spoiler: Krytus and the Red Sentients more than live up to this reputation.]]
* ''WesternAnimation/JadeArmor'': Everyone except Lan Jun and her family are afraid of BigBad the Crimson Lord.
* In ''WesternAnimation/JimmyTwoShoes'', Lucius I-the original ruler of Miseryville-is this. He's never actually been shown on the show, but he was mentioned in one episode, and it was shown that all the rest of the Heinouses (all of whom are basically different incarnations of Satan) are horrified by him.
* ''WesternAnimation/LetsGoLuna'': The Brawn Brothers in "Boomin' Boomerang" are competitive bullies. They are booed by the audience every time they're mentioned.
* ''WesternAnimation/LooneyTunes'':
** In the original WesternAnimation/BugsBunny shorts, the Tasmanian Devil was this. Every single animal in the area would panic and clear out when he started approaching.
** WesternAnimation/YosemiteSam was this in many cartoons as well, especially in the WildWest settings.
** Also, Nasty Canasta in his shorts with WesternAnimation/DaffyDuck.
* ''WesternAnimation/TheLoudHouse'': Though Luan is a nice and goofy jokester, when it's April Fool's Day the whole family is afraid of her, because on that day, she becomes a mean and relentless pranking machine who unleashes humongous pranks on the whole house which tend to be harmful and threatening, and no one is safe from her.
* In ''WesternAnimation/MikeTysonMysteries'', "Heavyweight Champion of the Moon", Mike gains a reputation for getting into "fender benders" with his vehicle, and has so far killed 10 people, specifically ''astronauts'', including Buzz Aldrin. After Mike hits and kills his 11th up on the surface of the moon, his insurance representative realizes that Mike has actually only killed 2 astronauts, and the other 8 were ''astronomers''. By this time, astronomers everywhere are already living in fear.
* [[WarGod Mictlan]] from ''WesternAnimation/MayaAndTheThree''. He's the goddamn god of war, ok? A power-hungry, ax-mad, merciless evil being who would gladly sacrifice a baby (he came close, for the record), he is feared by both humans and gods, his minions, a pantheon of evil gods,they don't want to make him angry since they know he will kill them to increase his powers, as extra points, he is the brother of Xibalba, another God who is not exactly pious
* [[Characters/FriendshipIsMagicDiscord Discord]] from ''WesternAnimation/MyLittlePonyFriendshipIsMagic''. Even ''[[PhysicalGod Princess Celestia]]'' [[OOCIsSeriousBusiness is on edge]] when she finds out he had escaped from [[TakenForGranite the stone]] [[SealedEvilInACan prison]] she and Luna left him in [[FateWorseThanDeath over a]] [[AndIMustScream thousand years ago]]. [[BewareTheSillyOnes Despite his comical appearance and zany personality]], it quickly becomes ''very'' clear that her fear of him was justified.
** Much to her depression, [[Characters/FriendshipIsMagicPrincessLuna Princess Luna]] is regarded as this trope thanks to her past as [[MadGod Nightmare]] [[OmnicidalManiac Moon]], as well as being [[NightmareFuelStationAttendant pretty scary herself]]. However, she manages to use it to her advantage by the end of her ADayInTheLimelight episode, taking advice from the true purpose of Halloween.
** [[Characters/FriendshipIsMagicQueenChrysalis Queen Chrysalis]] is this to the population of Canterlot in "A Canterlot Wedding" who believe her to be such an evil tyrant thanks to her power of deceit and absolute control with an army of changelings.
** [[Characters/FriendshipIsMagicKingSombra King Sombra]], the umbrum from the "Crystal Empire" two-parter. Simply thinking about [[TheDarkTimes his reign]] causes [[SlaveRace his former subjects]] to shudder; in fact, though he cursed the crystal ponies by wiping their memories, one of them implies that part of their amnesia may instead be due to their suppressing what little they do remember. When Twilight Sparkle has to [[spoiler: find [[AmplifierArtifact an ancient relic]] that Sombra hid away, she deduces (correctly) that he hid it somewhere in [[EvilTowerOfOminousness his own castle]], because he was banking on everyone being too scared of him to ever search the place]].
** [[Characters/FriendshipIsMagicLordTirek Lord Tirek]] from the season 4 finale, when first introduced, isn't overly dangerous, as he is decrepit and sickly, but what makes Tirek dreaded and dangerous is his ManaDrain ability. Tirek can steal the magic and talent from any ponies he comes across, rendering them completely helpless. It was bad enough that [[GodzillaThreshold sending Discord after him was the first course of action taken]]. We eventually learn later just how dangerous he can become once he absorbs enough magic, by effortlessly draining ''[[AlwaysABiggerFish Discord]]'' of his magic.
** The idea of [[Characters/FriendshipIsMagicStarlightGlimmer Starlight Glimmer]] returning for revenge deeply unsettles Twilight, who, as a reminder, had previously faced off against a demonic magic-eating centaur, among with many other things. The fact that Starlight is just a normal unicorn makes this especially noteworthy. Fortunately, this fades after her HeelFaceTurn.
* [[BigBad The Beast]] of ''WesternAnimation/OverTheGardenWall'' is treated as such by every character the brothers interact with who have even heard of him. Most notable in Chapter 4, where a very jovial party is turned into a tavern full of fear when Wirt mentions him.
* ''WesternAnimation/Primal2019'': Creatures infected with or even tangentially connected to the Plague of Madness horrify other creatures on an instinctual level. When Fang encounters the victims of the infected sauropod, she refuses to feed on their carcasses. She's not alone; no other scavengers have touched the bodies - not even the ''flies''. When the sauropod itself shows up, Spear and Fang (a powerful, fearless human and a ''Tyrannosaurus Rex'') spend the entire rest of the episode ''running for their lives''.
* ''WesternAnimation/RegularShow'': In "A Bunch of Full-Grown Geese", the geese are so terrifying that even ''[[GeniusBruiser Skips]]'' refuses to go anywhere near them.
* In ''WesternAnimation/{{Rugrats}}'', nearly every kid except [[CoolBigSis Susie]] and occasionally [[FearlessFool Kimi]] is afraid of [[BrattyHalfPint Angelica]]. Even fearless leader Tommy Pickles finds her terrifying. Played for laughs sometimes, for example when she's hiding in the bushes at Tommy's house and everyone initially thinks she's a monster.
-->'''Angelica:''' (''bursts out of the bushes with a big CheshireCatGrin'')\\
'''Chuckie:''' AHHH! IT'S WORSE THAN A MONSTER! IT'S ''ANGELICA!''
* ''WesternAnimation/SamuraiJack'': [[Characters/SamuraiJackAku Aku]], the Master of Masters, the Deliverer of Darkness, the Shogun of Sorrow... need we go on? He is a demon so feared that his return after the Emperor first defeated him would spell doom for the world. People know better than to cross him and elders often warn children to think twice before speaking ill of him. His followers often fear getting on his bad side when in his presence, as shown in "Jack and The Gangsters" when the titular gangsters report back to him and they think anyone who tries to fight him is out of their minds. Plus, when Aku appears before an audience of children in "Aku's Fairy Tales", they are absolutely ''terrified''.
* A minor RunningGag on ''WesternAnimation/TheSimpsons'' has every educator, babysitter, and doctor in the United States be terrified of [[Characters/TheSimpsonsBartSimpson Bart Simpson]]. In one episode, Mrs. Krabappel is up for Teacher of the Year, and Bart decides to help her by going in front of the group deciding the winner and says that anyone who could stand being in a classroom with him was obviously worthy of the prize. Once the committee hears the name "Bart Simpson," they don't hesitate for a second before handing Edna the award (in fact, some of them didn't even believe that Bart even existed until that moment).
* [[ExactlyWhatItSaysOnTheTin Snork-Eaters]] are this to ''WesternAnimation/TheSnorks'', for [[MeaningfulName obvious reasons]]. At least one [[ShowWithinAShow Snork-made horror movie]] has one as the villain. The Snork-Eaters themselves also have one in Snork-Eater-Eaters, which are small fish with [[VolumetricMouth gigantic mouths]].
* ''WesternAnimation/SouthPark''
** [[Characters/SouthParkEricCartman Eric Cartman]] can become this when he is really, really pissed off. After the boys destroy Cartman's electronic, believing he was harassing girls online [[spoiler: when it was really Gerald]], they sit in fear of him, waiting for his expected payback.
** [[EnfantTerrible Trent Boyett]] in the episode "Preschool". You know he's dreaded when even ''[[VillainProtagonist Cartman]]'' [[EvenEvilHasStandards is terrified of him]] and Butters dashes off to hide from him.
** Bridon Gueermo's [[AbusiveParents father]] from "Elementary School Musical", whose threats to slap people bring his family, the teachers and even ''Child Services officers'' to their knees.
** Chris Hansen is so feared by pedophiles that they immediately commit suicide at the sight of him.
* ''WesternAnimation/SpiderManTheAnimatedSeries'': Cletus Kasady was a feared criminal and MadBomber as an ordinary guy. [[EmpoweredBadassNormal Becoming Carnage]] took it over the top.
* In ''WesternAnimation/{{Spliced}}'', every mutant on Keepaway Island is utterly terrified of both the Wunny Sharbit and Mister Smarty Smarts. In the case of the Wunny Sharbit, it's fully justified, as it's a creature specifically and successfully designed to be the most dangerous animal on Earth. Mister Smarty Smarts' status as this is harder to understand, seeing as he's an IneffectualSympatheticVillain who is really more obnoxious than threatening.
* From ''WesternAnimation/SpongebobSquarepants'', we have the [[MemeticMutation ALASKAN BULL WORM(!)]], a borderline {{Kaiju}} which slithers along eating everything (and every''one'') in its path. Everyone in Bikini Bottom is terrified of it, with even Mr. Krabs declaring that no one would ever be foolish enough to go after one. The only one who ''doesn't'' fear the thing is Sandy, who is primarily motivated by {{Hubris}} and revenge (it ate her tail) and had never actually seen the worm with her own eyes before. [[spoiler:When she finally does, she ''runs for her life'']].
* In ''WesternAnimation/StarVsTheForcesOfEvil'', despite presumably having been dead for centuries, [[Characters/StarVsTheForcesOfEvilEclipsaButterfly Eclipsa Butterfly, The Queen of Darkness]] is ''still'' a name that inspires terror on Mewni. [[spoiler: It turns out their fears are justified, because a MeaningfulBackgroundEvent in "Crystal Clear" shows her to be [[CrystalPrison imprisoned in a crystal]], meaning she's not dead after all...and the crystal she's frozen in is weakening]].
** [[spoiler: As season 3 goes on, this ultimately turns out to be a subversion, because Eclipsa is shown to be a case of NotEvilJustMisunderstood. Mewmans just saw her as TheDreaded because of their racism against monsters, and Eclipsa had abandoned the throne to elope with her monster lover. Their child, Meteora, was the rightful heir to the throne, but Mewni had her swapped with a peasant child and had all evidence of her existence covered up, because they would not accept a monster-human hybrid to rule their kingdom.]]
* General Grievous in ''WesternAnimation/StarWarsCloneWars''. His near-victory against five (albeit exhausted) Jedi established him as a fearsome enemy. Count Dooku actually taught Grievous to use fear as a weapon, telling him that without it he wouldn't stand a chance against the best of the Jedi. [[spoiler:Unfortunately for him, the moment he faces a Jedi that isn't afraid of him (Mace Windu), he gets blindsided and [[GameBreakingInjury crippled in one key move]].]]
* ''WesternAnimation/StevenUniverse'': [[Characters/StevenUniverseHomeworldGems Homeworld Gems]] in general, as seen when [[TheEvilGenius Peridot]] first showed up on Earth.
** In [[Recap/StevenUniverseS1E48TheReturn "The Return"]], [[TheBrute Jasper]] mentions someone called "[[Characters/StevenUniverseYellowDiamond Yellow Diamond]]" in a throwaway line. At this point we know nothing about her, but it's telling that both Peridot and [[WoobieDestroyerOfWorlds Lapis Lazuli]], who are apparently on her side, look scared just at the mention of her name.
*** [[Characters/StevenUniverseDiamondAuthority The Great Diamond Authority]] in general is this: Yellow is feared by most of the Crystal Gems, while Garnet, who is usually TheStoic, is absolutely ''petrified'' of [[Characters/StevenUniverseBlueDiamond Blue Diamond]] and goes into a helpless panic at the very thought of her coming to Earth.
** Ironically, [[spoiler:''[[Characters/StevenUniversePearl Pearl]]'']] of all gems was this to the Homeworld Gems back in the days of the War. She's described as a "terrifying renegade" and it shows when she [[CurbstompBattle effortlessly cuts down]] two warrior class gems in about as many seconds. This despite apparently being [[spoiler:"someone's shiny toy" according to Peridot]].
** [[spoiler: [[Characters/StevenUniverseWhiteDiamond White Diamond]]]]'s reputation alone frightens everyone, [[HorrifyingTheHorror including Blue and Yellow Diamond]].
* Elmyra from ''WesternAnimation/TinyToonAdventures'' due to her tendency to [[AndCallHimGeorge smother animals with love.]] The mere mention of her name is enough to send all animals and Montana Max fleeing in the other direction. Even [[WesternAnimation/{{Animaniacs}} Wakko Yakko and Dot]] are afraid of her.
* ''WesternAnimation/TotalDrama All-Stars'' [[spoiler: has Mal, one of Mike's personalities whom ''all'' the other personalities (Chester, Svetlana, Vito and Manitoba Smith), and Duncan fear. In "Evil Dread", as his other personalities talk about him returning after years of absence, Svetlana is clearly terrified and Vito worries about how they can stop him. [[EvenEvilHasStandards Chris, Chef, and Alejandro are mortified of him as well.]] ]]
* ''Franchise/{{Transformers}}'':
** In ''WesternAnimation/TheTransformers'', natives of Cybertron are terrified of the Guardian Robots, titans who, as their name suggested, guarded large cities back before the Great War. In one episode, the Decepticons find an obviously dead one - its head is missing - and Rumble says that even the site of it gives him the creeps. This also applies to Omega Supreme, the last still functioning one; in another episode, Starscream ''trembles'' at the thought of making an attack against him.
** Megatron is this in ''WesternAnimation/TransformersAnimated''. The Autobots regard him as a bogeyman who is reputed to eat protoforms - [[EatsBabies baby Transformers]]. The other Decepticons are viewed this way as well. The Autobot leaders are so afraid of them that Ultra Magnus and Sentinel Prime [[spoiler:would rather deny the Decepticon presence on Earth than cause a panic among the populace.]]
** Soundwave in ''WesternAnimation/TransformersPrime'' is this to the other Decepticons due to his role as communications chief, which helps him keep down insurrections. It's why Starscream goes out of his way to stay on Soundwave's good side -- he knows full well that he can't take command of the Decepticon forces on Earth without Soundwave's approval.
*** Don't let his slow moving nature and silence fool you, Soundwave is fully capable of beating insubornates within an inch of their lives. [[CurbStompBattle Airachnid learned this first hand.]]
*** The Autobots are scared of him, too. When he returns in ''WesternAnimation/TransformersRobotsInDisguise'', Bumblebee [[ThisCannotBe is utterly shocked]], and at the end of the episode, he basically says that his team winning against Soundwave was a miracle.
---->'''Bumblebee''': "Two humans, a Mini-Con, a Dinobot and an Academy Cadet against Soundwave and Laserbeak? You realize that had about a four percent chance of working?"
** Shockwave is this in ''WesternAnimation/TransformersCyberverse'' unnerving Autobots and Decepticons alike due to his extreme LackOfEmpathy. His moves to eliminate all organic life on Earth minutes after arriving on the planet just to make locating an artifact easier.
* Most Gumm-Gumms from ''WesternAnimation/{{Trollhunters}}'' actually.
** Gunmar the Black emerged from a corrupted Heartstone and terrorized so much of the world that it took whole armies just to barely do any damage, taking an exceptionally strong Trollhunter to banish him. Even the other Trollhunters in the void believe him to be unkillable.
** Changelings are so feared and hated that word of it escaping to Trollmarket's public would have led to mass panic.
** Bular is infamous for being Gunmar's son, and is considered a threat to all of Troll-kind.
** Angor Rot was so powerful that it took all of Trollmarket to face him and his magic. Plus, he built a reputation for killing seasoned Trollhunters.
* ''WesternAnimation/TheVentureBros'' has a few:
** Brock Samson is this towards [[{{Mooks}} henchmen]]. "Death by Samson" is quite possibly the most common means of death for the henchmen of villains who go after the Venture family.
** The Investors, a group of [[IntangibleMan Intangible Men]] in the employ of [[WeirdTradeUnion The Guild of Calamitous Intent]] and known for making DealWithTheDevil style deals, are this when they come to collect on your end of the deal. Even the 10ft tall [[AmoralAttorney supervillain lawyer]] [[NamesToRunAwayFromReallyFast Monstroso]] is scared out of his mind when they come for him.
** Red Death, a veteran Guild member and living legend within the Supervillain community, scares the living hell out of anyone that knows their stuff within such circles. He frightened the Monarch off a hit with just a few words, and even ''Brock Samson himself'' at his own peak is hesitant to take the guy on, admitting he's "just a little bit scary".
* Lord Dominator from ''WesternAnimation/WanderOverYonder'' quickly becomes this over the course of the second season, and for good reason. Her very first appearance in the show managed to terrify [[WideEyedIdealist WANDER]] of all characters. Since then, she's [[EvilerThanThou curb-stomped every villain in the galaxy and sent them into hiding]], destroyed dozens of planets and caused countless planetary populations to flee the galaxy in terror. [[spoiler:By the time she's finally defeated, the galaxy had almost been stripped bare of life.]]
** Before her, Lord Hater was this to many of the galaxy's citizens, although to a much smaller extent. Even after his in-universe VillainDecay, he still occasionally manages to scare off crowds.
** Dr. Screwball Jones is this to Wander, and is the only villain capable of causing Wander to go into "Boy Wander mode". PlayedForLaughs of course.
** The Black Cube of Darkness is this on his home planet, [[BeingGoodSucks which causes him great difficulties after retiring from villainy]].
* ''WesternAnimation/WhatIf2021'':
** PlayedForLaughs in Episode 7 [[spoiler:with Thor's [[AlmightyMom mother, Frigga]]. The moment Thor mentions her name and that she's coming down to check if he was partying instead of studying to all his fellow party-goers (which includes the like of other dreaded beings like Grandmaster and ''Surtur''), there is a MassOhCrap moment among all of them and they are willing to clean up the Earth just so they wouldn't get in trouble with her.]]
** Played straight in Episode 8. What is the one being dangerous enough to make Uatu break his AlienNonInterferenceClause and start to openly panic? [[spoiler:A version of Ultron who got his hands on the Infinity Stones, discovered the multiverse, and seeks to annihilate all life in all of reality everywhere.]]
* ''WesternAnimation/ZakStorm'': Despite defeating him many times, the heroes know better than to engage recurring enemy Golden Bones, second-in-command to the BigBad Skullivar, for a protracted period of time. Rather, they always make their escape the first chance they get. Case in point, when he manages to definitively corner them in one episode, he [[spoiler:kills most of them. While it was undone by time travel in the end,]] it shows that he is never an opponent to be underestimated despite his many losses.
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