A form of NamesToRunAwayFromReallyFast.

Names with the letter '''K''' in them (especially as the first or last letter), for some reason, look tougher than names without it. Perhaps it's because this letter is rarely used by itself the English language, and thus it sounds [[NamesToRunAwayFrom/ForeignLanguageNames sinisterly foreign]]. Or maybe it's because those few English words are mostly of a rather morbid variety (e.g., "kill", "keelhaul", "kick", "kidney", [[FluffyTheTerrible "kitten"]]), and the name sounds scary by association.

K Names don't necessarily denote evil characters (or entities). Sometimes they're given to tough and brutal warriors - though you'd better [[NamesToRunAwayFromReallyFast run away from those really fast, too]].

Note: This trope [[Series/SesameStreet is brought to you by the letter]] "K". Names with "c", "cc", "ck", "cch", "q", "cq" etc. are not this trope. '''"Kh"''' is okay, though.

NameOfCain (Kain/Kane) and AVillainNamedKhan have their own tropes.

See also [[NamesToRunAwayFrom/RNames Names To Run Away From: R Names]] and NamesToRunAwayFrom/XtremeKoolLetterz.



[[folder:Anime and Manga]]
* ''LightNovel/ACertainMagicalIndex:'' Anyone with the last name "Kihara" is either an AxCrazy, a MadScientist or both. You'd better drop everything and just '''run''' if you see them.
* ''Manga/DeathNote's'' Kira, Ryuk, and Ryuzaki (another name for L).
* And before Death Note, ''Manga/JoJo'sBizarreAdventure'' the previous bearer of the name Kira is a serial killer obsessed with hands, and his stand Killer Queen.
* ''Manga/MahouSenseiNegima'': Jack Rakan.
* Solf J. Kimblee from ''Manga/FullmetalAlchemist.''
* ''Anime/{{K}}'' has a few of these. Kuroh, Kusanagi, Daikaku Kokujouji, all badasses. There's also Adolf K. Weismann [[spoiler: who ends up being a subversion]]. Yukari, Munakata, and Mikoto also have prominent Ks. All of the episode titles also start with K, except for the episode called "Adolf K. Weismann". The show itself also qualifies.
* ''Manga/KatekyoHitmanReborn'': Kyoya Hibari, who's badass and isn't afraid to show it.
* When they talk about badass - men of indomitable spirit and masculinity - they're talking about the mighty [[Anime/TengenToppaGurrenLagann Kamina]]; maybe you've heard of him.
* ''Anime/MobileSuitZetaGundam'': Kamille Bidan counts as well. Just... Don't comment that his first name sounds feminine. [[BerserkButton Just. Dont...]]

* Comicbook/SpiderMan faced his share of "K" villains:
** Carnage: Alien symbiotic mass-murderer/serial-killer, real name? [[NamesToRunAwayFrom/RedneckNames Cletus Kasady]].
** Kaine: Spidey's ill-fated *first* clone (*eyes rolling*) and indirect participant/instigator of the Kraven legacy resurgences.
** The Kingpin: more famous as a Daredevil acoutrement, he was Spidey's first and has the last name "Fisk".
** Kraven The Hunter: One of the purest examples of this trope, his own real family name is even "Kravinoff" (and his sons and daughters are more than happy to carry on the line...or resurrect it, as the case may be).
** The Kangaroo: just kidding...but he's real.
* [[ComicBook/{{Hellboy}} Karl Ruprecht Kroenen]]
* Kang the Conqueror, a major ''[[Comicbook/TheAvengers Avengers]]'' villain. Note that 'Kang' is an alias; his birth name is the disappointingly normal Nathaniel Richards.
* Both the Kree AND the Skrull alien races are traditionally belligerent towards Earth's heroes in the Marvel Comics universe.
* Let's be frank; would you ''really'' want to have anything to do with [[ComicBook/{{Watchmen}} Walter "Rorschach" Kovacs]]?
* ''ComicBook/ThievesAndKings'': Ramanious Kath. Also, his minion Klachilles.
* Many Italian [[TheSixties 1960s]] comic book [[AntiHero Anti Heroes]], starting with ''ComicBook/{{Diabolik}}''. Notable examples include ''Kriminal'' and ''Satanik''.
** This trend, sometimes called "criminalizing K", was parodied by the famous Italian ''DonaldDuck'' comic, ''{{Paperinik}}''.
* A ''PifEtHercule'' comic had a villain called Krapulax.
* Combined with [[NamesToRunAwayFrom/{{Verbs}} Verbs]], Zebediah Killgrave, The Purple Man. His live-action version in ''Series/{{Jessica Jones|2015}}'' is actually [[SpecialPersonNormalName Kevin]] [[EvilMakeover "Kilgrave"]] [[SpecialPersonNormalName Thompson]]. The fact that Kilgrave still sounds cartoonishly evil is often lampshaded.

* ''Franchise/StarWars'':
** The Droideka battle droids.
** Count Dooku, aka: Darth Tyrannus.
** Grand Moff Tarkin, who blew up a whole *planet* in the first showing of the Death Star's capabilities.
** Anakin Skywalker: Who even ''[[WouldHurtAChild killed younglings]]'' on his path to the Dark Side.
* Admitted by the creators of the ''Franchise/{{Highlander}}'' franchise, and so common they even have a name - 'Kimmies': [[Film/{{Highlander}} The Kurgan]], [[Film/HighlanderIITheQuickening General Katana]] (doubles up with a weapon name, for even greater badassery), [[Film/HighlanderIIITheSorcerer Kane]], [[Series/{{Highlander}} Kronos]], etc.
* [[Film/{{Scanners}} REVOK! DARRYL REVOK!]]
* ''Film/KingKong'' The original and best. Especially if he has his foot raised above your head.
* [[Film/SpaceMutiny Kalgan]] [[Series/MysteryScienceTheater3000 take me away!]]
* [[Film/StarTrekIITheWrathOfKhan KHAAAAANNNNN]]!!! [[Film/StarTrekIntoDarkness KHAAAAANNNNN]]!!! From hell's heart, he stabs at thee...
** Bonus points for being the vaguely ethnophobic Khan Noonien Singh in full.
* Krank from ''Film/TheCityOfLostChildren''.
* Dr. Mirakle from the 1932 ''Film/MurdersInTheRueMorgue''.
* Freddy Krueger of ''Franchise/ANightmareOnElmStreet''.
** Also from Wes Craven (who was bullied by a Fred Kruger and took revenge by {{Tuckerization}}), Krug from ''Film/TheLastHouseOnTheLeft''.
* Charles Foster [[Film/CitizenKane Kane]]: With the manipulation of the public via newspaper yellow journalism, the politically ambitious marriage to his first wife, the forcing of his second wife into an undesired and ill-suited operatic career, or even the abandoning of his first wife for said second wife, he's really the antagonistic villain of his own movie.
** Extra villainous toppings for both the naturally [[XtremeKoolLetterz Xtreme Kool Letterz]] of his palatial-but-nearly-deserted estate "Xanadu" (effectively transforming it into a villainous stronghold) AND for one of the film's real-life inspirations, William Randolph Hearst, (whose name, sadly, has no K in it) forbidding any mention of it in any of his publications (a villainous, ego-centric move if there ever was one).

[[folder:Folklore and Mythology]]
* Koschei the Deathless, from Russian folklore. "Deathless" because he's removed his soul from his body to attain immortality. It's hidden in the eye of a needle, inside a duck egg, inside a duck, inside a fox, inside an iron treasure chest wrapped in the roots of a tree on an island which ''simply isn't there'' most of the time. Possibly the original lich.
* The goddess Kali from Indian mythology; representing Time, Change and Death, she is an unfortunate and unavoidable, but an ultimately necessary, "evil".
* Loki from Norse mythology. His name SOUNDS trickster-y. And if he's feeling helpful, that's great. If he's feeling disgruntled - or if he's crossed his MoralEventHorizon - bad things will ensue. Ragnarok, for instance.
** For that matter, how about Ragnarok? You know, the Viking version of the apocalypse?
* Sekhmet from Egyptian mythology. She was a goddess depicted with the head of a lion and was so literally bloodthirsty she drank a whole lake of wine just because she mistook the red liquid for blood. And didn't start feeling the effects until after she finished the entire lake. Even Ra was afraid to try to stop her rampaging.
* Kronos from Greek mythology (also spelled Cronus): in addition to being the god of time, (hence "chronology," for example) he's most famous for castrating his own father Oranos and usurping his role as King of the Titans, proceeding to eat his own children as soon as they were born to try and prevent a prophecy telling of his own defeat, and leading the Titans and their allies against Zeus and the other Olympians in the Titanomachy. Fiction usually has him as the BiggerBad as far as Ancient Greece is concerned (''VideoGame/AgeOfMythology'', ''PercyJacksonAndTheOlympians'', etc.) by conspiring with mortals and even other gods to escape from Tartarus. Also the namesake for the short-necked plesiosaur ''Kronosaurus'', itself something you'd probably want to run (or rather swim) away from.

* ''Literature/TheLordOfTheRings'': The Uruk-Hai (and the Orcs from which they were bred, to an intentionally lesser extent).
* Robert E. Howard was fond of K Names, as evidenced by King Kull and Solomon Kane.
* ''Literature/TheJungleBook'':
** Shere Khan: bonus points for translating directly as "Tiger Lord" (or "Tiger King", if you want to double-up on the K-sounds).
** Kaa: although he is more an accompanying protagonist to Mowgli than in the familiar Disney film (where he's an outright villain), he still has great powers, including a hypnotic dance, and commands respect and prestige from the other characters... not only do Baloo and Bagheera sing a song together with him for Mowgli, but it is actually they who ask ''him'' for help in rescuing Mowgli from the Monkeys, and also become hypnotized themselves by him during the task, all of which show how powerful and respected he actually is.
* Kirschov Latanya of the Second Sons trilogy, though he is more [[LawfulStupid dumb]] than evil (He was the last person in the entire universe to work out that Marquel was evil, to start...).
* The biggest [[OurOrcsAreDifferent Urgals]] from the ''Literature/InheritanceCycle'' are called Kull.
* [[Literature/{{Animorphs}} Crayak]] is pretty damn scary and the K doesn't help.
* Karkas, in ''Literature/GalaxyOfFear''. Added distinction of being a SerialKiller who [[CallingCard carves the letter "K"]] into his victims' foreheads.

[[folder:Live-Action TV]]
* Daleks, from ''Series/DoctorWho''. Unless you're the Doctor, with a pass ''possibly'' going to a few of his companions, your only hope when confronted by a Dalek is to run away very, very fast.
** Or hide behind a sofa.
** Or go up or downstairs. (That is, until the Daleks figured out that they had to start levitating.)
** Also done with the names of ''many'' [[VillainOfTheWeek Villains Of The Week]]. Why, even the name of the villain in the first story ever, ''[[Recap/DoctorWhoS1E1AnUnearthlyChild An Unearthly Child]]'', was Kal! Even the more regular villains are prone to this, like Kovarian (the BigBad of series 6) and Koschei (better known as TheMaster).
* It became clear after a few episodes of ''Series/{{Highlander}}'' that anyone with a K name was evil. Fans started calling them "K'immies".
* A milder variety: ''Series/PowerRangersRPM'' has Dr. K, who becomes furious whenever [[BerserkButton someone says that her Ranger suits are made of spandex]]. No one is safe, not even a schoolboy. Or, alternatively, if your name is Tenaya 7 and you [[OhCrap find yourself on the wrong side]] of [[ImprobableWeapon her violin]].
* Klingons from ''Series/StarTrekTheOriginalSeries''. Especially Kang, Koloth, Kor, Korax and Kras.
** Note also the non-Klingon Kodos the Executioner, [[NamesToRunAwayFrom/MixAndMatch a double whammy]] (although he gets some sympathy in the end of his episode).
** Khan, also listed in the film folder.
** From the perspective of the bad guys, 'Kirk' is probably a name to run really, really fast from...

* "King Kong! King Kong! The White Man done you wrong! And so we sing this song to you! Mighty Kong! King...Kong! Oonga-boonga, hoonga Kong! Get a load of mighty Kong! A million natives can't be wrong! Oonga-boonga, hoonga Kong...": This not-famous-enough vinyl tribute to the film original is also a direct descendant of ooey-gooey gorey #1 classic by Bobby "Boris" Pickett, the "Monster Mash".
* Music/TheBeatles' "Helter Skelter", created once "[[Music/PaulMcCartney the cute one]]" read that Music/TheWho had produced one of the "loudest, rawest, dirtiest" rock songs and decided to one up it with a song that's basically just noise. It starts to veer slightly away from its badass origins, however, [[LyricalDissonance once you realize that a "helter skelter" is actually a playground slide and that this song could just as easily have been about "going 'round and 'round on a MERRY-GO-ROOOOUUUNNNDDD!!!!" or "riding up and down on a FERRIS WHEEEEEL!!!!"]] (although the phrase "helter skelter" itself does have a double-meaning of "going crazy", "chaotic" or "without order"; which unfortunadely fits the infamy Usefulnotes/CharlesManson achieved using the song)

[[folder:Professional Wrestling]]
* For that matter, wrestlers Wrestling/AjaKong and [[Wrestling/KiaStevens Amazing/Awesome Kong/Kharma]].
* Wrestling/NikolaiVolkoff & Wrestling/TheIronSheik: A "Soviet" heel who, at the height of 80's Soviet/American rivalry, had the audacity to sing the Soviet National Anthem before every match, and his authentic Iranian tag-partner who not only had bodyguarded for the Shah, but also competed (for Iran) and coached (for the U.S.) in the Olympics.
* Wrestling/{{Kane}}.
* Wrestling/KingKongBundy, [[MightyGlacier strong, huge fighter par excellence]].
* Killer Kowalski: Famous 6'4" Polish-Canadian "heel" wrestler (who was actually extremely nice in person), he ripped off an opponent's ear then showed up at the hospital the next day to laugh at his victim about it (in actuality, the two were friends, the incident was an accident, and the two were laughing about the fact that he looked like Humpty Dumpty in his bandages); he was also the first person to *ever* PIN [[Wrestling/AndreTheGiant ANDRE THE GIANT]]!!!
* Wrestling/{{Kamala}} the [[UsefulNotes/{{Uganda}} Ugandan]] [[TheGiant Giant]][=/=][=Headhunter=].

[[folder:Tabletop Games]]
* ''TabletopGame/{{Warhammer 40000}}'': "[[AxCrazy Kharn]]" sounds scary enough, until you find that his title is "'the Betrayer''". You really, really want to run away from this one.
** Also, Khorne, Chaos God of War, whose followers are known by their battle cry "Blood for the Blood God!" The 40k universe is [[CrapsackWorld not a happy place]].
** Kaelis Ra, the god of death. Oh, and Kaela Mensha Khaine, the Eldar god of war (as well as murder, violence and destruction, not a really pleasant guy to be around).
** Scryak.
* In Dungeons & Dragons Orcs and Drow tend to have k and g sounds in there names, so if one runs after hearing a name like Grak or Kagak (which are just random names btw) it's probably best for their health.
* Magic: The Gathering has Kozilek, The Butcher of Truth and Emrakul, The Aeons Torn; [[EldritchAbomination Eldritch Abominations]] called the Eldrazi that transcend the colors of mana.

* Most of the AlwaysChaoticEvil species and various fearsome critters in ''Toys/{{Bionicle}}'' have Ks in their name: Bohrok, Bohrok-Kal, Rahkshi, Vahki, Visorak, Piraka, Skakdi, Barraki, Makuta, Skrall, Kraawa, Kralhi, Kranua, Kraahu, Kavinika, Kinloka, Kahgarak, Parakrekk, Kraatu[[note]] (an unreleased promo set)[[/note]], Krana, Kraata, Kuurahk[[note]] (and the rest of the named Rahkshi breeds: Turahk, Guurahk, Panrahk, Lerahk and Vorahk)[[/note]], Kohrak[[note]] (and the rest of the Bohrok breeds: Tahnok, Gahlok, Pahrak, Lehvak and Nuhvok, plus their respective "-Kal" variants)[[/note]], Keelerak[[note]] (and the rest of the "regular" Visorak breeds: Vohtarak, Boggarak, Roporak, Suukorak and Oohnorak)[[/note]], Klakk... And on an individual basis we have names like Krekka, Krahka, Krika, Karzahni, Krakua, Kopaka, Fenrakk, Irnakk, Kardas, Voporak, Sidorak and Kollorak.
** The Ignika, one of the most powerful Kanohi, and the only one that was intentionally made sentient.
** Kraahkan, the evil Mask of Shadows worn by Makuta.

[[folder:Video Games]]
* [[Franchise/SuperMarioBros King Koopa]] was probably the first widely-known use of this trope in gaming.
* ''Franchise/{{Pokemon}}'':
** Kyogre: a gigantic, ocean-controlling beast of legend who *wars* with other gigantic, continent-and-air-current-controlling beasts of legends.
** Magikarp: raging Gyarados, anyone?
** [[SdrawkcabName Ekans/Arbok]]: poison-spewing snakes accustomed to hanging out with the badasses in Team Rocket.
** Murkow/Honchkrow: naturally "Dark"-type pokemon who are called "the Summoner(s) of Night".
** Skorupi: a poison-type scorpion who evolves into a Dark-type bruiser (the "Dark" type is literally called the "Evil" type in the original Japanese).
** Ninjask: a super-speed-demon insect that's so badass, it has a mirror evolution in which the empty *shell* of its former metamorphosis is animated into a near-indestructible phantom (ie: Shedinja).
** Darkrai: a legless, hovering Dark-type with the ability to make people have Bad Dreams.
** Krokorok/Krookodile: Dark-type crocodiles who live in ancient ruins among a searing hot desert.
** Zoroark: A*nother* Dark-type, this one with the ability to create illusions that can fool or even trap others.
** Eelektrik/Eelektross: An Electric eel who is immune to his one type's only weakness.
** Terrakion: A legendary Fighting/Rock bull who actually made war on humanity with his buddies at one point in the past.
** Zekrom/Kyurem/Black Kyurem: As if a gigantic Dragon with an Electric turbine in its tail who is the literal embodiment of the cosmic Yin wasn't enough, he can also be combined with fellow Tao Dragon, Kyurem, to form the stronger-than-both "Black Kyurem".
* Kane, the leader of Nod from the ''VideoGame/CommandAndConquerTiberianSeries''.
* Korax, the really eeeeevil end-of-game boss from ''Hexen''.
* Kratos, ''VideoGame/GodOfWar''.
** Kratos Aurion from ''VideoGame/TalesOfSymphonia'' too.
* King K. Rool from ''VideoGame/DonkeyKongCountry 1''-3 (and Land 1-3, and 64, etc). Speaking of which, pretty much every single Kremling and boss character comes under this: KAOS, Kerozene, King Kut Out, Kleever, Kroctopus, Krow and Kludgel.
* [[VideoGame/{{Starcraft}} Sarah Kerrigan]].
* Armok, God of Blood and almighty deity from the full title of ''VideoGame/DwarfFortress''.
* Kraid from the ''Franchise/{{Metroid}}'' series.
* [[EldritchAbomination Mantorok]] from ''VideoGame/EternalDarkness: Sanity's Requiem''.
* [[VideoGame/FinalFantasyVI Kefka.]]
* ''VideoGame/{{Karnov}}''.
* In ''VideoGame/WorldOfWarcraft'': Kargath Bladefist, Kil'Jaeden and Kael'thas.
** Kel'Thuzad, Hakkar the Soulflayer...
* ''Franchise/MortalKombat'' gives us Shao Kahn, Kano, Baraka and Sektor to name a few.
* The entire race of the [[ProudWarriorRaceGuy krogans]] who are entirely battle-driven and want to kick the galaxy's ass in ''Franchise/MassEffect''
** And from ''VideoGame/MassEffect3'' we get Kalros: The Mother Of All [[SandWorm Thresher Maws.]]
* In ''VideoGame/RuneScape'', all generals of the Kal'Gerion Army: To'Kash, Har'Lakk, Bal'Lak, Yk'Lagor and Kal'Ger.
* [[VideoGame/{{Mother3}} Kumatora]]: It even means ''bear-tiger''.
* [[Franchise/SonicTheHedgehog Dr. Eggman's]] original name is Dr. Ivo Robotnik.
* ''VideoGame/DragonAgeOrigins'' gives us [[OurOrcsAreDifferent the darkspawn]]...well, most of them: gemlocks, hurlock, and sharlocks (more commonly called Shrieks in the game, but they're still examples of this)
* The Dovahkiin from ''VideoGame/TheElderScrollsVSkyrim'' who can evoke this with their real name if the player so desires, also notable are the twin brothers Vilkas and Farkas of the Companions, Kodlak Whitemane, and Ulfric Stormcloak.
* Killbane, the big bad from ''VideoGame/SaintsRowTheThird'' from Act 2 and onwards.
* Karras, the MadScientist[=/=]SinisterMinister BigBad of ''VideoGame/{{Thief}} II''.
* ''VideoGame/TotalAnnihilation''`s '''Krogoth''' is an example of both NamesToRunAwayFrom/KNames and NamesToRunAwayFrom/RNames.
* Kilrathi words and names (from ''VideoGame/WingCommander'') are full to bursting with K's: Kilrathi, Drakhri, Krant, Drakhai, Sorthak, Vaktoth, Hvark'kann, karakh (also [[PardonMyKlingon Kilrathi for "shit"]]), Kur Human-Killer, Thrakhath nar Kiranka, Bhurak nar Caxki, etc. Also full of -th endings, R's in awkward places, and loads of guttural spitty sounds (where all those H's come from) for a language that is as BlackSpeech as you would expect from a race of eight-foot-tall roaring genocidal space lions.

* Kamikaze Kate from ''Webcomic/{{Misfile}}''.
* ''[[Webcomic/DummComics Skadi]]''.
* K'Z'K from ''Webcomic/SluggyFreelance''. (Even if it's not the [[http://www.sluggy.com/comics/archives/daily/19990228 name itself]] that inspires running.)
* You should only run away from [[Webcomic/{{Goblins}} K'Seliss]] if you are edible (so yes, you probably should).
* Baron ''Klaus'' Wulfenbach from Webcomic/GirlGenius. As if the other parts of his name were not enough to run away from.
* While he's already mentioned on the XtremeKoolLetterz page, Xykon from Webcomic/TheOrderOfTheStick undoubtedly fits here as well.
* Sirleck from ''Webcomic/ElGoonishShive''.

[[folder:Web Originals]]
* Dr. Diabolik of the Literature/WhateleyUniverse, referred to by one of the viewpoint characters as Dr. Dad.

[[folder:Western Animation]]
* Kang and Kodos from ''WesternAnimation/TheSimpsons''. (both borrowed from ''Star Trek'' villains listed on the Live-Action TV folder)
* ''WesternAnimation/AvatarTheLastAirbender'' has [[FaceStealer Koh]], [[AntiVillain Zuko]], deceased badass Avatar Roku, and pretty much any badass from the Water Tribe (''K''atara, So''kk''a, Ha''k''oda, Pa''kk''u, etc.).
** ''WesternAnimation/TheLegendOfKorra'' has [[ActionGirl the title character]], [[PlayingWithFire Mako]] [[note]]incidentally, Mako's namesake voiced Iroh in the first show until his death of esophageal cancer[[/note]], Tarrlok, the deceased crime boss Yakone [[spoiler:(father of Tarrlok and Noatak)]], and [[spoiler:Noatak (better known as the BigBad Amon)]]. Note that all these characters except Mako are Waterbenders. (Well, Yakone ''was'', until Aang took his bending.)
* ''WesternAnimation/MyLifeAsATeenageRobot'' has Killgore, not that he's much of a threat, anyway.
* [[Disney/TheJungleBook Disney's The Jungle Book]]: markedly different from the original by Rudyard Kipling.
** Shere Khan: as noted in Literature above.
** Kaa the Snake: His name alone strikes fear into the hearts of all animals, especially the Bandaar-Logs (monkeys).
* Disney's WesternAnimation/TaleSpin: a spin-off of their own version of The Jungle Book, above.
** Don Karnage: pirate captain of the ''Iron Vulture''.
* Korgoth of Barbaria.
* Hordak of ''WesternAnimation/SheRaPrincessOfPower'' fame.
* [[WesternAnimation/CodenameKidsNextDoor Kuki Sanban]] appears to be a sweet, lovable girl, and for the most part she is. Do not [[BerserkButton Deface or injure a Rainbow Monkey]] in her presence, unless you want her to go on an UnstoppableRage.
* Krang from the 1980s ''WesternAnimation/{{Teenage Mutant Ninja Turtles|1987}}'' cartoon looks scary, but is actually an IneffectualSympatheticVillain.
** Oroku Saki (best known by his nickname, [[NamesToRunAwayFrom/{{Verbs}} Shredder]]), on the other hand, is much more dangerous.
** Karai, aka Lady Shredder.
** [[Film/TeenageMutantNinjaTurtlesIITheSecretOfTheOoze Tokka]], an evil mutated alligator snapping turtle.
** The Kraang from ''WesternAnimation/TeenageMutantNinjaTurtles2012'' are this - though with some shades of comedic villain remaining.
* [[WesternAnimation/InvaderZim Tak the Hideous New Girl]]
* Lord Tirek of [[WesternAnimation/MyLittlePonyTVSpecials My Little Pony: Rescue at Midnight Castle]] and [[Recap/MyLittlePonyFriendshipIsMagicS4E25TwilightsKingdomPart1 Twilight's Kingdom]].
* Klondike Kat always gets his mouse!

* The /k/ board of 4chan, it's all about weapons & military technology.

[[folder:Real Life]]
* The prevalence of the hard K in some Russian names may sometimes be used as an intentional Anglo attempt to bring up [[{{Lzherusskie}} spectres]] of DirtyCommunists.
* Creator/FranzKafka: Author whose works gave his name to an adjective ("kafkaesque") which is "marked by a senseless, disorienting, often menacing complexity" or "marked by surreal distortion and often a sense of impending danger".
* American liberal writer/editor Russ Kick
* Genghis Khan.
* Jacob "Jack" Kevorkian: Do I even really want to go there? All moral ambiguity aside, and whatever view his actions can be seen as, the very word "Kevorkian" can, for some, conjure up images of a bloodthirsty killer who takes pleasure or delight in the calculated terminus of his victims (as opposed to the heroic championing of the right to die with compassionate dignity), and a lot of it has to do with how the media has painted the events...especially in pop culture, where he's always good as the superficial and ill-informed punchline for a quick laugh or two; either way it's probably genuinely safe to say that he might have had an easier ride of it, and a less tough time in the public media eye, if his name didn't have so many damning and damaging hard-sounding 'K's all up and down in it.
* The UsefulNotes/KuKluxKlan.
* The "Mohawk" tribe: their more-familiar name is actually one from their Algonkian enemies meaning "man-eaters"; in their own language, they call themselves Kanienkehaka ("people of the flint") which, oddly for this trope, has even more K's.
* Kamikaze
* UsefulNotes/EvelKnievel: famous showy daredevil born Robert Craig Knievel, he earned his stage name legitimately from a stint in jail for reckless driving (his cell neighbour was known as "Awful" Knofel, so the guard rhymed him as "Evil" Knievel); although he changed the spelling to specifically escape the "evil" connotations, he's still about as badass as they come.
* Ayatollah Ruhollah Khomeini
* Hurricane Katrina
* James Jesus Angleton, Director of the CIA during the early part of the Cold War, became obsessed with the possibility of Soviet moles; intelligence (likely to have been a matter of Soviet disinformation) suggested that one existed, and that his name began with ''K''. CIA agents' careers were blocked and shortened if their names began with K, and the chaos that Angleton's mole-hunt caused seriously impaired CIA morale and function.