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[[quoteright:242:[[WesternAnimation/TheRealGhostbusters http://static.tvtropes.org/pmwiki/pub/images/slimer_hunting_ghosts_4.jpg]]]]

->''"I never deal with what I am. I don't think about it. I just do my job, which usually involves me beating the crap out of things a lot like me. But I don't think about that."''
-->-- '''Hellboy''', ''ComicBook/{{Hellboy}}''

This is where you have Group X which is AlwaysChaoticEvil. Then there's Character Y, who somehow has the powers of Group X but has a conscience, often because he or she is a PhlebotinumRebel or a HalfHumanHybrid of WarringNatures. So, Character Y becomes a HunterOfMonsters, and DefendsAgainstTheirOwnKind, allowing him to use his powers for a good cause. Sometimes, this turns out badly for the Hunter when it is revealed that his targets actually aren't totally evil, and a case of VanHelsingHateCrimes can result.

For [[IHateYouVampireDad some reason]], vampires seem particularly prone to doing this. You will see {{Dhampyr}}s, FriendlyNeighborhoodVampires, and especially {{Vampire Detective|Series}}s engaging in it. Maybe it's because they like to turn their [[VampireHunter enemies]] out of spite.

See Also: BoomerangBigot, MySpeciesDothProtestTooMuch, and StagesOfMonsterGrief. Someone who actually succeeds in killing off their entire people or clan has committed GenocideFromTheInside. PredatorTurnedProtector may lead to them protecting their supposed "prey" from their own kind, who feeds on the same prey. Contrast MonstersAnonymous. Compare ProHumanTranshuman.


[[folder:Anime & Manga]]
* ''Manga/AttackOnTitan''
** The Rogue Titan attacks other Titans while ignoring the nearby humans. [[spoiler: This is because it's actually Eren, on a RoaringRampageOfRevenge after his VoluntaryShapeShifting powers manifested. Armin successfully invokes this trope, convincing the military that Eren can become their trump card in the battle to reclaim first Wall Rose, and eventually Wall Maria from the Titans.]]
** [[spoiler: Ymir also becomes this when her unarmed squad is cornered in a castle tower by a horde of Titans. WordOfGod confirms her decision to reveal herself and fight is because she's in love with Krista. She gets overwhelmed, but luckily the Survey Corps [[BigDamnHeroes arrives in time to save her.]]]]
* Saya from ''Anime/BloodTheLastVampire'', ''Anime/BloodPlus'', and [[AmbiguouslyHuman possibly]] ''Anime/BloodC'' [[note]][[NamesTheSame different girl, mind you]][[/note]].
* [[AntiAntiChrist Rin]] from ''Manga/BlueExorcist''. Mephisto even lampshades this in a recent chapter.
* The Shikabane Hime of ''Manga/CorpsePrincess'' are undead girls who hunt and kill other undead.
* Dark from ''Manga/DNAngel'' was described as such by Argentine. Weirdly, he's technically an ''artwork'' that steals other non-living evil artwork. Krad counts as well; his mission in life is to kill Dark. Krad's not only another living artwork, but the ''same exact one'' as Dark, making him not only a hunter of his own kind, but a ''hunter of himself,'' which is probably as far as you can take this trope.
* Nagasawa from ''Manga/DawnTsumetaiTe'' is immune to the worst effects of [[TheCorruption Nightshift]], whose [[BodyHorror not-so-fortunate victims]] he must hunt down and kill using the very mutations that the Nightshift has given him.
* ''Manga/FullmetalAlchemist''
** Scar only targets alchemists, despite using alchemy himself. Of course, Scar never identifies himself as an alchemist because his religion considers it a sin, thus he exploits a LoopholeAbuse because true alchemy is three stages (Composition, Deconstruction, and Reconstruction), and he only stops at the second, which is still enough to blow a person's body apart. [[spoiler:He gradually overcomes this]].
** [[spoiler:Greed]] spends quite some time fighting other homunculi after his HeelFaceTurn.
* ''Manga/{{Hellsing}}''
** Alucard is an interesting case; he's frequently as bad or ''worse'' than the vampires he's hunting (''[[EvenEvilHasStandards maybe...]]'') and takes far too much glee in killing them, often getting [[FamilyUnfriendlyDeath 'creative']] in his methods. Really, he only hunts vampires because he's bound to follow orders from the head of the Helsing family, and they're in the vampire hunting business.
** Alucard's fledgling, Seras Victoria, was a police officer before joining the Helsing organization so little has changed for her. It's just that now the criminals she hunts are a lot more dangerous.
* ''Manga/MahouSenseiNegima'':
** Setsuna is a half-demon who hunts demons. They asked for it, however, by kicking her out for her [[HeroicAlbino albinism]].
** Similarly, [[spoiler: Mana Tatsumiya]] is also a half-demon who specializes in exorcisms.
* ''Anime/MobileSuitGundam00'' has a SciFi twist on this with Setsuna's Gundam Exia: its primary purpose is to hunt down any Gundam should its pilot go rogue, since its [[BladeBelowTheShoulder GN sword]] is the only weapon that can penetrate a Gundam's [[SomeKindOfForceField GN field]]. [[spoiler:Though late in the first season, the Earth's military gets their hands on GN Drive technology, meaning Exia has a wealth of targets from then on.]]
* ''Anime/NeonGenesisEvangelion''
** [[spoiler:Rei Ayanami]] is an artificially created Angel/Human hybrid who pilots an Evangelion to fight Angels.
** [[spoiler:The [=EVAs=] themselves are reverse engineered from the first two Angels]].
* ''LightNovel/NinjaSlayer'' is about a super-powered ninja who slays other super-powered ninjas. He's not the only example in-series, however: Dragon Yukano, Yamoto Koki, and from the villains' side, Darkninja, could all be considered hunters of their own kind.
* The main character in Kei Kusunoki's ''Manga/OgreSlayer''.
* A non-species example: The Seven Warlords of the Sea in ''Manga/OnePiece'' are government sponsored pirates who given amnesty (and often a blind eye to their other shady dealings) in exchange for bringing down other pirates.
* Averted in ''Manga/{{Saiyuki}}''. On a few occasions Sanzo's three sidekicks get accused by the random demons they fight of being an example of this trope, as they're following a human who has a reputation of being a demon-slayer. However, the only reason the group ends up fighting those demons is because said demons have little idea of the trio's backgrounds[[note]]Hakkai was originally human, Gojyo is a half-breed whose demon stepmother hated him, and Goku is more of a godlike being than a demon[[/note]] and are [[TooDumbToLive stupid enough to get in their way in the first place]].
* [[spoiler: Natsuno]] aids in the efforts to stop the vampires infesting Sotoba Village in ''Manga/{{Shiki}}'', ultimately [[spoiler: killing TheDragon and himself in the process]].
* In ''Anime/SuperDimensionFortressMacross''[=/=]''Anime/{{Robotech}}'', [[http://en.wikipedia.org/wiki/Milia_Fallyna_Jenius Milia]], a Zentraedi (or is that Meltran?) who is [[ArchEnemy obsessed with defeating]] the human ace [[http://en.wikipedia.org/wiki/Maximilian_Jenius Max]]. When she is captured by Max, not only does she do a FaceHeelTurn, she becomes his partner fighting the Zentraedi, but tends to [[VanHelsingHateCrimes shoot down her opponents with nonlethal shots when possible]].
** In subsequent ''Anime/{{Macross}}'' shows, "cultured" Zentraedi are more than willing to do their part to defend their human allies from their "uncultured" brethren.
* In ''[[Manga/TokyoGhoul Tokyo Ghoul:re]]'', the protagonists are part of a newly-formed team of artificial [[HalfHumanHybrid One-Eyed Ghouls]] that [[HunterOfMonsters CCG]] has created to hunt Ghouls. They clearly think of themselves as still being human, but wield the same abilities as an ordinary Ghoul and are viewed with mistrust by their peers.
** The mistrust is a bit justified as one-eyed ghouls can't digest human food, [[HorrorHunger so they have to feed off humans and ghouls.]]
** [[spoiler:The heads of CCG the Washuu Clan]] are an old family of Ghouls who hunt other Ghouls.
* ''LightNovel/TrinityBlood'': Abel Nightroad is a crusnik, a vampire who hunts and eats other vampires; although it is implied (in the anime) by their dialogue that the Crusnik see themselves as another race entirely, they do need the blood of vampires to survive. Abel is the only one [[spoiler: of the three]] who actually makes it a point to hunt vampires. [[spoiler: His sister]] isn't shown to hunt anyone (in fact, [[spoiler:she's the empress of the vampires]]), and [[spoiler: Cain]] doesn't care who he hunts/hurts.
* ''Manga/UQHolder'':
** Kuromaru is a demihuman of some kind trained in demon-hunting (by the same school that trained Setsuna, no less).
** The eponymous organization itself, made up primarily of immortals and intending to provide supernatural denizens (immortals in particular) with a home, will occasionally have to go hunt down an immortal causing problems in society. Either they recruit these errant immortals into the organization... or they neutralize them.
* LightNovel/VampireHunterD goes after the vampire Nobility who once ruled the earth.
%%* Zero from ''Manga/VampireKnight''.
* Both Robin and Amon in ''Anime/WitchHunterRobin'' are witches who hunt other witches.
* ''Anime/WolfsRain'':
** [[spoiler: Darcia]] is a villainous example, hunting the wolves despite being part wolf via a traitorous bloodline.
** Blue Yaiden is one ''unwittingly.''
* In the original ''Manga/YuGiOh'' manga, Yugi's snobby classmate Kujirada had a "hidden character" [[{{Tamagachi}} virtual pet]] (as in, it would live two months, as opposed to normal ones, that lived twenty-one days). Unfortunately for him, it was harder to take care of, and had a [[AIIsACrapshoot malignant intelligence]], along with the ability to control Kujirada. The evil virtual pet eventually got tired of normal virtual food, and directed its owner to link it to other kids' devices so it could devour other virtual pets. It met its end when [[MuggingTheMonster it tried to prey on Yugi's pet]], who due to swapping data with Jonouchi's pet, was [[PintSizedPowerhouse much tougher than it looked.]]
* ''Manga/YuYuHakusho'':
** [[spoiler:Yusuke]] ends up being one when it's revealed he has a little demon in him towards the end of the series.
** Hiei also qualifies. Ever since he could walk, he's been brutally slaughtering demons left and right, all because he enjoyed killing. Although for a time, his primary motivation was to kill all the ice maidens from his birthplace.
* Both Merry and Engi from ''Manga/YumekuiMerry'' are nightmares who hunt other nightmares. That said, Merry just sends them back to the dream world, and Engi tries to avoid killing them, letting Merry finish the job when possible.

[[folder:Comic Books]]
* ComicBook/{{Hellboy}}, as demonstrated in the page quote.
* Andrew Bennett, from Creator/DCComics' ''ComicBook/IVampire'' series in ''ComicBook/HouseOfMystery'', was a vampire determined to hunt down the line of evil vampires which [[WhatHaveIDone he himself had started]].
* ComicBook/{{Blade}} is a {{Dhampir}} vampire hunter. Him being part vampire, the thing he hates the most has caused him no small amount of grief.
** [[ComicBook/UltimateSpiderMan Ultimate]] ComicBook/{{Morbius}} is a true vampire and Vlad the Impaler's brother. He stakes other vampires but not before apologizing to them for being unable to save them. And rather than turning people into vampires his bite prevents humans from fully turning after they have already been bitten.
* If you want a not-so-sunny example of this trope, look at original-model SelfDemonstrating/{{Lobo}}. He hunted down and killed every single member of his own race... for fun.
* ''ComicBook/XMen'':
** The X-Men in general fight evil mutants quite often when they aren't fighting anti-mutant racists.
** ComicBook/XFactor began as a team that hunted down mutants. The general public didn't know that the team members were mutants themselves and [[spoiler:that they were actually trying to help the mutants they "hunt" down]].
** Would you believe that Sentinels are mutants themselves? Seriously, some people who build them (like Sebastian Shaw) have tried to put a failsafe program into them to use in case they go rogue, which reveals that, since their abilities were "inherited" and improved upon from from the original Mach-1 Sentinels, they are technically mutants. In theory, this would act as a LogicBomb, causing a rogue Sentinel who has this revelation thrust upon it to destroy itself, as its directive is to destroy mutants. However, this idea hasn't had as much success as whoever thought it up had hoped.
* ''ComicBook/SpiderMan'':
** Eddie Brock's ComicBook/{{Venom}} is like this. One of the few reasons he'd [[EnemyMine willingly ally himself]] with Spider-Man is to fight Carnage or another Symbiote; he simply ''hates'' them. This became a far-more prominent goal when he later becomes Anti-Venom.
** In fact, this seems to be a trait of Symbiotes in general. The one time Venom and Carnage were ''ever'' willing to cooperate with each other was to fight a more powerful Symbiote that had been spawned from Carnage's Symbiote.
* The French comic ''ComicBook/{{Raptors}}'' features Drago and Camilla, a BrotherSisterTeam duo of vampires who systematically hunt down all other members of their kind. The feud started when the majority of vampires chose to give up most of their powers and bestial instincts so they could walk around in the daylight and rule humanity openly. Drago and Camilla's father was opposed to this and murdered (along with his wife) for his defiance, leading his children to [[YouKilledMyFather swear revenge]] after they were safely whisked away.
* ''ComicBook/{{Vampirella}}'': DependingOnTheWriter, Vee is typically portrayed as a vampiress who manages her own HorrorHunger by feeding either on {{Asshole Victim}}s or blood bags stored in a fridge. She has taken down many fellow vampires in her quest to rid the world of evil, with {{Dracula}} himself being her ArchEnemy.

[[folder:Fan Works]]
* Many a MarySueHunter can fall into this by accident -- one of the main criticisms of the genre (beyond "WHY DID YOU KILL MY CHARACTER I HATE YOU") is that said Hunters often end up being {{Mary Sue}}s themselves. If you think about it, having a character beat an over-idealized character such as a MarySue (with the exception of AntiSues) has a high probability of accidentally becoming one him-or-her-self because having beaten an over-powered character requires you to be even more powerful or extremely lucky. A way to around this can be to have them have a hard time at first and work hard to defeat the {{Mary Sue}}(s) or {{Marty Stu}}(s) and then succeed.

[[folder:Films -- Animation]]
* In ''WesternAnimation/FernGullyTheLastRainforest'', Zak, the human, plays this role for the nonhuman locals, though he [[VanHelsingHateCrimes doesn't actually hurt anyone]]; he just tries to stop them.
-->'''Zak:''' Guys, things have got to change.

[[folder:Films -- Live-Action]]
* {{Kaiju}} seem to hate each other with a passion, needing little reason to fight each other whenever their paths cross, only considering a truce when worse Kaiju like King Ghidorah show up.
* According to one version of ''Film/BladeRunner'', the main character who hunts rogue androids is an android himself. If true, this is a rather dark spin on the trope. Basically, androids are detected by being tested for moral feelings and reveal themselves to be amoral. As the androids turn out to be [[TinMan "tin men"]], this would mean that he is actually worse than his targets. The amorality is explained as resulting from lacking real childhoods and formative years of experience. There is at least one android in the film (two if you count the main character) who has/have memory implants of growing up with a family and loved ones (even if those loved ones died or left). They both show that they have a sense of right and wrong and the definite android is only exposed after hundreds of times more testing than any previous android.
* ''Film/{{Hellboy}}'': The title character is a demon who fights other demons and supernatural monsters. Sometimes, the creatures he fights accuse him of betraying his kind, but he seems to be more worried about becoming like them. Notably, he attempts to negotiate with the demon Sammael before resorting to violence.
* ''Film/HellboyIITheGoldenArmy'' uses this in the opposite manner from the comic books--to make the monsters that HB fights more sympathetic and to make HB resign from the BPRD.
* In ''Film/TheLastWitchHunter'', there are witches working for ChurchMilitant Axe and Cross.
** Glaeser is implied to be one; while part of Axe and Cross' court, she uses magic and divination to aid them.
** Chloe becomes one by the end of the movie. She's rather nonchalant and lampshades it:
--->'''Chloe:''' Why can't a witch be a witch hunter?
* Although not directly called forward, as a dwarf, Bolivar Trask in ''Film/XMenDaysOfFuturePast'' is a human mutant who hunts down super-powered human mutants in order to advance technology through gruesome experiments.
* In TheStinger of ''Film/DoctorStrange2016'', [[spoiler:Mordo]] is shown to have [[StartOfDarkness started hunting down sorcerers]] on account of there being too many sorcerers in the world.

* ''Literature/TheLegendOfDrizzt'':
** Drizzt Do'Urden from the TabletopGame/ForgottenRealms is another poster boy contender considering how badly he breaks his vow to never kill drow elves. He discards the vow in the third group of books after realizing it's stupid to kill goblins and other evil monsters, but not drow.
** His father too. More coherent than Drizzt, Zaknafein ''prefers'' to kill drows, because they are the most cruel creatures he knows.
* ''TabletopGame/{{Ravenloft}}'':
** While we're at it, Jander Sunstar from the Forgotten Realms and Ravenloft is yet another vampire-hunter vampire.
** Also from ''Ravenloft'', Ivan Dragonov has continued to hunt monsters after contracting lycanthropy himself, using his bestial form as a weapon of last resort.
* This backfired ''badly'' in the backstory of the sci-fi novel ''Candle'', although it only becomes apparent towards the end. [[spoiler:As one HiveMind after another ravaged the world, seeking only to [[TheVirus add more members to their ranks]], a benevolent hive mind was created to protect the minds of those in it. It, too, sought to spread itself, initially as a counter to the other hive minds, [[JumpingOffTheSlipperySlope until at last it became no different than them]]]].
* The eponymous Literature/NightHuntress, at least at first.
* ''Literature/NightWatch''. Both Light and Dark Others persecute their kindred who break the Treaty and threaten to disrupt the Balance between Light and Darkness. Also invoked in that in order to hunt down renegade vampires, Night Watchers need to tune in to the [[CompellingVoice "Call"]] they use to attract victims. It is only audible to other vampires, so the Watchers undergo a special ritual that nearly turns them into a vampire.
* The protagonist of Richard Morgan’s “Black Man” (“Thirteen “ in the U.S.) is a pretty good example of this.
* ''Literature/WhiteFang'' loathes other dogs to the point of going out of his way to assassinate them when he spots one alone.
* In ''Literature/TheFalconer'', Aileana's mentor for faery hunting is Kiaran, who is himself a faery. He doesn't talk about his motives much, but there are hints that some event in his past caused him to change sides.
* Lord Voldemort from ''Literature/HarryPotter'' could be considered this, given that he seeks to eliminate {{Muggles}} and Muggle-born wizards despite being half-Muggle himself. The same goes for Dolores Umbridge, who viciously persecutes Muggle-borns even though she's half-Muggle like Voldemort.
* In ''Literature/EdenGreen'', the title character is infected with an alien needle symbiote that renders her immortal. She immediately makes it her mission to destroy herself and all other infected humans.
* ''Literature/JourneyToChaos'': [[spoiler: Eric]] has become a monster that hunts other monsters. He still thinks of himself as human [[spoiler: and even after accepting that he really is a grendel he is still sympathetic to humans]] so he thinks nothing of killing them. Kallen would insist that he does not fit this trope because he is not a monster but a ''demon''.
* In ''Literature/VoidCity'', Evelyn is a FriendlyNeighborhoodVampire who works for an organization of vampire hunters, subsisting solely on animal blood and destroying her monstrous kin to protect innocent humans. Greta is also a vampire who regularly hunts and destroys other vampires; but in her case, it's because she just really likes killing things and enjoys the challenge offered by semi-immortal prey which requires extremely elaborate measures to destroy.
* In ''Literature/TheWitchlands'', [[spoiler:the Hell-Bards]] are unregistered witches who've been caught and pressed into service of hunting down other unregistered witches.
* In the ''Literature/SonjaBlue'' series, Blue is a vampire who never actually died, so her human side remains (mostly) in control, and she hunts other vampires and their ilk, while seeking revenge on the monster who accidentally created her.

[[folder:Live-Action TV]]
* Athena from the 2000s ''Series/{{Battlestar Galactica|2003}}'' is a Cylon who fights against other Cylons. And then there's [[spoiler:Tigh, Tyrol, and Anders]] who were fighting against the Cylons for years, [[TomatoInThemirror unaware of their true nature]].
* ''Series/BuffyTheVampireSlayer'':
** The title character of ''Series/{{Angel}}'' is a vampire who hunts other vampires. When Angel first meets Buffy he tells her that what he wants is to kill them, to kill them all. It turns out that he wants to kill them to make up for his own monstrous actions.
** Spike also fits this description, although he initially inverts some parts of the trope since he starts out fighting vampires and demons not because he wants to be good, but because he can no longer attack humans and [[BloodKnight REALLY misses violence]].
** Angel's {{Dhampyr}} son Connor takes this and runs with it. Not only did his adoptive father teach him to fight vampires and demons, he groomed him to fight his biological father.
* ''Series/{{Dexter}}'' Morgan is the serial killer who hunts other serial killers to satisfy his Dark Passenger.
* Examples from ''Franchise/KamenRider'':
** Almost all of the Kamen Riders from the Showa Era (1971-1989) of the franchise are this, as they were cyborg mutants created by the villainous organization, but escaped before the brainwashing could be completed or defected afterwards. Because the [[MonsterOfTheWeek Monsters Of The Week]] are also cyborg mutants, the result is this trope.
** In ''Series/KamenRiderFaiz'', [[spoiler:[=Faiz/Takumi=] is actually the Wolf Orphenoch.]]
** In ''Series/KamenRiderKabuto'', [[spoiler:[=Tsurugi/Sasword=] is actually the Scorpio Worm. Scorpio Worm then killed the real Tsurugi and take his identity as a result. Unfortunately for Scorpio Worm, Tsurugi's will successfully fights back against Scorpio, and Scorpio proceeds to completely forgot his Worm persona as a result.]]
** In ''Series/KamenRiderKiva'', [[spoiler:Wataru is part Fangire, making him sort of a {{Dhampyr}}.]]
** In ''Series/KamenRiderOOO'', [[spoiler:Eiji does not start this way, but he slowly becomes a Greeed near the climax of the series.]]
** In ''Series/KamenRiderWizard'', [[spoiler:It's double-subverted with the Dragon Phantom. Haruto (Kamen Rider Wizard) summons it to fight against unreleased phantoms, but still need to control it in order to do so. Afterwards, though, the phantom decided to lend Haruto its own power.]]
** Multiple in ''Series/KamenRiderAmazons'', [[spoiler: There's Haruka Mizusawa (Amazon Omega), a half-human & Amazon hybrid, Jin Takayama (Amazon Alpha), a human injected with the Amazon cells, and Mamoru (Mole Amazon) a child-like Amazon that works with the protagonists. Season 2 has Chihiro (Amazon Neo), seemingly a human but with Amazon characteristics, and Iyu (Crow Amazon), a human girl killed by her Amazon father and brought back as an Amazon.]]
%%* Eric Cord from ''Werewolf'' does this for the entire series.
* Ruby on ''Series/{{Supernatural}}'' is a demon who fights other demons and helps Sam fight them. Sam is arguably another example of this trope, because his PsychicPowers are caused by having been fed demon blood. Of course, it turns out [[spoiler: Ruby is among the worst of the lot and was driving Sam to his destiny to release Lucifer from his prison. [[NiceJobBreakingItHero Which he did]]]].
* In ''Series/TerminatorTheSarahConnorChronicles'', [[RobotGirl Cameron]] is frequently tasked with hunting and destroying other Terminators. Most often, she does this to protect others, but one episode involves her going into full-on detective mode to track down a Terminator she discovers entirely by accident, and then destroying it.
* Helena from ''Series/OrphanBlack'' has been indoctrinated to believe that clones are unnatural abominations to be destroyed...but the cult that raised her conveniently neglected to mention that she's a clone herself.
* After extended psychic contact with the Doctor, Rusty the Dalek from ''Series/DoctorWho'' becomes this.

* [[http://www.jamendo.com/en/track/125694 "Princes of the Dreams"]] by Doug the Eagle ("[[TomatoSurprise So you've just discovered you're a soul-eating monster...]]")
* In the music video for the song "A Little Less Sixteen Candles, A Little More Touch Me" by Music/FallOutBoy, the bassist Pete Wentz is a vampire while the rest of the band are humans who all hunt vampires.

[[folder:Tabletop Games]]
* Martin [=DeVries=] of ''TabletopGame/{{Shadowrun}}'' deliberately became a vampire in order to hunt them on their own terms.
* ''TabletopGame/DungeonsAndDragons''
** One of the potential racial backgrounds for the Shardmind in 4[-[[superscript:th]]-] Edition is Shard Slayer, a Shardmind which believes that, since their kind was born from shards of the living gate, then a dead Shardmind's lifeforce returns to it and mends the gaps that allows the influence of the Far Realm to seep through. This mentality is taken to a logical extreme as Shard Slayers hunt down and kill other Shardmind and destroy unawakened shards in the hopes of closing the gate back up.
** The Ranger class has the Favored Enemy ability, where the character chooses one or more species and gains several benefits fighting that species. In 3.0, only an evil Ranger can choose their own species, however, in which case they qualify for this trope. In 3.5, the evil limitation is removed; note though that "Favored Enemy" involves some non-combat bonuses, so a ranger could simply pick his own species to ease up interaction, or because they're likely the most common enemies (in the case of humans) rather than any desire to hunt them down.
** In ''Van Richten's Guide to Witches'' (an accessory for the ''TabletopGame/{{Ravenloft}}'' campaign), the good doctor claims that he wrote the book with the help of a greenhag who despised other members of her species and was all too willing to aid him in publishing a book that could be used against them. (Why? According to Van Richten, she refused to say.)
* A few examples from the ''TabletopGame/NewWorldOfDarkness'':
** ''TabletopGame/VampireTheRequiem'' has VII, a mysterious group of Kindred who, for some unknowable reason, kill other vampires. Their minds can't be read and they can't be interrogated. Most vampires regard them as an urban legend; however, they do have a book that offers three possible backstories.
** ''TabletopGame/MageTheAwakening'' has Banishers, mages whose Awakenings went [[MindRape horribly, horribly wrong]]. As a result, they view magic as something filthy and wrong with the world (they can't use it without feeling innate revulsion) and spend most of their time hunting down other Awakened and killing them to try and "heal" the world in their own way.
** ''TabletopGame/HunterTheVigil'' has the Lucifuge, a conspiracy made up of those who believe they carry the blood of Hell in their veins. They spend their days fighting against demons, their brethren who went over to the side of the Devil, and things darker still.
** Second edition ''TabletopGame/WerewolfTheForsaken'' has the Blood Talons, whose favored prey in the sacred hunt is other werewolves, those who've gone to the bad one way or the other.
* In the ''TabletopGame/OldWorldOfDarkness'':
** ''TabletopGame/VampireTheMasquerade'' has the Baali, a bloodline known for their long association with demons and {{eldritch abomination}}s. One faction of the bloodline worships these entities for power; the other hunts down infernalists, including their own kin, with extreme prejudice, to prevent them from breaking the world.
** ''TabletopGame/MageTheAscension'' has the Technocracy, one of whose precepts is the destruction of Reality Deviants - most prominent among whom are non-Technocratic mages.

[[folder:Video Games]]
* Alucard from ''Franchise/{{Castlevania}}'' definitely counts, being heavily inspired by D.
* Rayne from ''VideoGame/BloodRayne'' is a Dhampyr with one hell of a vendetta against her vampiric father Kagan for [[ChildByRape the circumstances leading to her birth]].
* Full-blooded demon Sparda in the ''VideoGame/DevilMayCry'' back story turned against his fellow demons and sealed them in their own world. His son Dante, a half-demon himself, carries on by hunting demons who sneak into our world. Nero in ''[=DMC4=]'' counts as well, [[spoiler:if one accepts the cut material where he is Vergil's son -- Dante's nephew -- and thus making him a quarter-demon.]]
* In ''VideoGame/SidMeiersPirates'', you have the option of only going after other pirates if you so choose.
* ''Franchise/{{Disgaea}}'':
** [[spoiler:Adell]] in ''VideoGame/Disgaea2CursedMemories''. Of course, [[spoiler:he's unaware that he's not human]].
** The Prinny Extermination Squad in ''[[VideoGame/Disgaea4APromiseUnforgotten A Promise Unforgotten]]''. [[spoiler:They were supposed to be prinnies themselves, but there were too few skins to go around. This applies to their latest recruit, Fuka Kazamatsuri, as well.]]
* The main character in the game ''VideoGame/DivinityIIEgoDraconis'' is on their way to being initiated as a full dragon slayer when they get turned into a dragon. Your dialogue options allow them to protest this and act as if they are still a slayer [[spoiler:until the slayer commander and their slayer buddies attack the main character]].
* Ashrah of the ''Franchise/MortalKombat'' series is a demon who wields a holy sword that purifies her bit by bit with every one of her fellow demons that she kills. She hopes to become completely purified and holy this way.
* ''VideoGame/MegaManX'':
** The biggest {{reveal}} is that [[spoiler:Zero]] is the ''original'' Viral Maverick (meaning that TheVirus originally came from him). Not only is this fitting for the trope, it also makes him the [[TheAtoner hunter of the race he unwittingly created]].
** [[TheHero X]] himself qualifies, since all Reploids (Repliroids, based on X's designs) and, by extension, Mavericks/Irregulars stem from him.
* Kharg from ''VideoGame/ArcTheLadTwilightOfTheSpirits'' says that he is going to do this when he finds out that he is a HalfHumanHybrid, but he decides not to later.
* [[spoiler: Balthazar]] from ''VideoGame/BaldursGateIIThroneOfBhaal''. He knows the Bhaalspawn aren't AlwaysChaoticEvil, but thinks they're still too dangerous, and he intends to kill himself last in a ritual designed to stop this from bringing Bhaal back. He actually works with some of the other powerful Bhaalspawn because they want to kill all the others ''except'' themselves.
* Alex Mercer spends most of ''VideoGame/{{Prototype}}'' killing the viral monsters controlled by Elizabeth Greene, [[spoiler:including Greene herself]]. Alex qualifies because [[spoiler:he ''is'' the virus.]]
* If he befriends or becomes the lover of The Warden in the original ''VideoGame/DragonAgeOrigins'', [[ProfessionalKiller Zevran Arainai]] becomes one of these in ''VideoGame/DragonAgeII''. In the seven years between the end of the first game and the point at which Hawke meets him in the second, he has sown chaos in the ranks of his former employers, the [[MurderInc Antivan Crows]], managing to assassinate one of the seven Guildmasters while simultaneously forging an alliance with two more as well as several other disaffected assassins.
** The Grey Wardens technically qualify, as becoming a Warden involves [[spoiler: drinking Darkspawn blood and taking [[TheCorruption the Taint]] into themselves, turning them into a type of high-functioning [[OurGhoulsAreDifferent ghoul]] with their [[ProHumanTranshuman humanity intact]]]]. This also allows Wardens to permanently kill the Archdemon by [[spoiler: forcing its soul to BodySurf into them at the moment of death, [[TakingYouWithMe destroying them both]]]].
** A Mage Hawke in ''VideoGame/DragonAgeII'' frequently finds themselves hunting down Blood-Mages, [[TheReasonYouSuckSpeech berating them]] for their WellIntentionedExtremist actions and pointing out that it's only made the situation ''worse'' and caused innocent Mages to suffer at the hands of certain Templars who see little difference between [[LaResistance Apostates]] and [[EvilSorcerer Maleficarum.]]
** Played straight if a Mage Hawke ends up being Templar-Aligned at the end of the game. If still alive, Carver will [[WhatTheHellHero call them out]] on this and points out that if Bethany was still alive, Hawke would be turning against ''her'' as well.
** Bethany can be convinced to do this in the Templar Ending by a Warrior or Rogue Hawke, although she's ''[[WhatTheHellHero not]]'' happy about it and only agrees because innocent people are being killed in the crossfire.
** In Origins, the guild called The Mages' Collective can be this. While their primary goal is to support mages, Circle or Apostate alike, they maintain a hard distinction between Apostates and Maleficarum, and you can take on missions from them requiring you to kill blood mages or cultist groups. As well as this, they are aware that they sometimes require [[ChurchMilitant the templars]] to turn a blind eye to what they do, and you can accept a mission from them that will allow you to "reward" a templar with [[FantasticDrug lyrium potions]].
* ''VideoGame/WarCraft'':
** Demon hunters study and use fel magic in order to more effectively hunt demons. Since the magic is innately corrupting, many of them become partially demonic themselves and may or may not retain their original noble intentions.
** Death Knights, former slaves of the Lich King, use their knowledge of necromancy and Scourge tactics to fight the undead in Northrend. A lot of the more vengeful Forsaken fall into this category as well.
** Wrathion is a black dragon that, due to the unique circumstances of his birth, is free of the Old God corruption that has taken over the rest of the Black Dragonflight. He's on a crusade to eliminate the tainted black dragons, and the rogue legendary Fangs of the Father questline is centered around helping him do this. By the end of the quest, he claims to be the LastOfHisKind, though observant players have noticed [[WhatHappenedToTheMouse there is at least one other black dragon (Sabellian) unaccounted for]]. [[spoiler:And it turns out there was one other uncorrupted black dragon as well ''long'' before he came around named Ebyssian, who hid himself as a spiritwalker among the tauren named Spiritwalker [[MeaningfulName Ebonhorn]]]].
* ''VideoGame/TheElderScrollsVSkyrim'':
** The [[PlayerCharacter Dragonborn]] is a [[TheChosenOne rare mortal]] born with the [[DragonsAreDivine divine]] [[OurAngelsAreDifferent Aedric]] soul of a [[OurDragonsAreDifferent dragon]]. Because dragons are [[TheAgeless ageless]] and, even if they are slain, can be [[ResurrectiveImmortality resurrected]] by another dragon, it takes another dragon or Dragonborn [[YourSoulIsMine absorbing their soul]] to permanently kill them. Akatosh, the draconic God of Time, [[TopGod chief deity]] of the Imperial pantheon, and "[[MonsterProgenitor father]]" of dragons, specifically created the Dragonborn to serve as a "natural predator" to the dragons. In fact, the Dragonborn's very title reflects this: in Dovahzul, the language of the dragons, "Dragonborn" is "Dovahkiin" which, when broken down the way most dragon names are, becomes "Dov Ah Kiin", or "Dragonkind Hunter Born". Naturally, dragons see the Dragonborn as their equivalent to a HumanoidAbomination.
** The ''Dragonborn'' DLC plays it straight as well, with [[spoiler:the "Last Dragonborn" being forced into a confrontation with [[EvilCounterpart Miraak]], the ''First'' Dragonborn]].
** If you choose to side with the [[CreatureHunterOrganization Dawnguard vampire hunters]] against Lord Harkon in the ''Dawnguard'' DLC, Harkon's daughter Serana will join you and eventually be permitted to take up residence in the Dawnguard's headquarters. She ''can'' be convinced to cure herself of vampirism... but only if you say the right things, and only ''after'' Dawnguard's main quest.
** If the Dragonborn is a [[OurVampiresAreDifferent Vampire]] or [[OurWerewolvesAreDifferent Werewolf]], this trope can occasionally come into play. Defied in ''Dawnguard'', as Isran will frequently chastise and refuse to deal with a Vampire Dragonborn until they cure themselves. Ironically, a Dragonborn that sides with the Volkihar vampires can ''also'' play this trope straight, since a large number of side quests involve killing lesser vampires, mostly for [[PragmaticVillainy drawing too much mortal attention to themselves]] and partly because the [[SupernaturalElite Volkihar vampires]] just plain [[FantasticRacism look down on the thin-bloods]].
* In ''VideoGame/DarkSouls'', the most common enemies the Chosen Undead will encounter are other Undead who have long since gone Hollow and insane.
* ''Off-Road Velociraptor Safari.'' The driver is a velociraptor [[RuleOfCool for no particular reason]]. Its motivation is not really explored, but the way it is beamed away when time runs out suggests it may just have [[TheLastDance nothing left to lose]].
* Raziel in ''VideoGame/LegacyOfKain'' is a three-fold example. A [[spoiler:former Sarafan vampire-hunter, resurrected as a]] vampire, he was betrayed by Kain, the vampire who sired him, and executed, then reborn as an ethereal wraith and accepted an offer from the [[EldritchAbomination Elder God]] to become an Angel of Death. His purpose is to hunt down and destroy the vampires who were once his brothers, but he also hunts and kills other ethereal beings, [[spoiler:as well as members of the Sarafan Order,]] at times.
* Subverted in ''VideoGame/LeagueOfLegends''. Miss Fortune is a pirate hunter because her mother was killed by pirates, but her attire is completely pirate-like. A PirateGirl? Nope, she's just dressing up like one, she's a full time pirate hunter.
** Played straight with Vi, however. She was once a normal criminal, but then found a set of PowerFist in a mine. Afterwards, she redirects her passion into hunting down other criminals by punching them in the face, before becoming an official police in Piltover.
* In ''VideoGame/ImmortalSouls'', Raven had herself turned into a vampire specifically so she could take revenge on the vampires that killed her family and is well-known for her enthusiasm about the matter.
-->'''Raven:''' You wanted to see me, Isis?\\
'''Isis:''' Indeed, Raven. I have a new mission for you.\\
'''Raven:''' Do I get to kill vampires?\\
'''Isis:''' Still holding a grudge against your own kind?\\
'''Raven:''' Always.
* ''VideoGame/DwarfFortress'' has the legendary [[http://dwarffortresswiki.org/index.php/Cacame_Awemedinade Cacame Awemedinade, The Immortal Onslaught]]. An elven resident of a dwarf-conquered civilization, his wife was killed [[ImAHumanitarian and eaten]] by other elves. He later ended up becoming an Elven King of Dwarves, seemingly out of [[ScrewYouElves pure burning hatred of the pointy-eared ones]].
* In the backstory of ''Videogame/{{Darksiders}}'' and its [[Videogame/DarksidersII sequel]], the Four Horsemen were the only {{Nephilim}} who believed the Nephilim's campaign of universal conquest was wrong. The offered their services to the Charred Council to help set things right. The newly christened Horsemens' first order was to slay the rest of the Nephilim, which they did.
* The vampire twins Vania and Veight, as well as the player (who gets vampirized by them) in the "Memories of the Dark" event in the mobile trading card game ''VideoGame/RageOfBahamut''.
* ''VideoGame/SaintsRowTheThird'' features a cheesy ShowWithinAShow called ''Nyteblade'', about a vampire hunter who was turned into a vampire himself.
** The Syndicate uses various [[EliteMook Brutes]], giantic clones that are strong enough to tackle vehicles out of their way. Later on the game you meet the original one, Oleg, who is used as the base for all the brutes (except he's far more intelligent), who ends up joining you. He expresses great disdain for his clones and whenever he's helping you out, he'll prioritize fighting brutes.
* In ''VideoGame/SwordOfTheStars'', the Liir's greatest weapon against the dreaded Suul'ka [[spoiler:power-mad Liir Elders who enslaved the rest of the Liir so they could live forever in space]] is The Black [[spoiler:another Liir Elder who lives in space like the Suul'ka.[[note]]Though he himself is not considered a Suul'ka, since Suul'ka pretty much the Liir word for war criminal[[/note]]]]
* ''Videogame/InfamousSecondSon'' has the D.U.P., who are out to recruit, neutralize, or kill those suspected of being superhuman, and are led by Brooke Augustine, a Conduit who has bestowed her [[DishingOutDirt concrete-based]] powers to the rest of the group. [[spoiler:Her actual purpose however is to imprison them in one place so they cannot be harmed by outside forces]].
* ''VideoGame/GuiltyGear'': The setting is home to a bunch of artificially-engineered {{Humanoid Abomination}}s called Gears, and the oldest and strongest of all of them is hunting down and killing the rest [[spoiler:out of guilt for creating them]], hence the title. [[spoiler:That would be the main protagonist, the crass bounty hunter Sol Badguy]].
* In ''VideoGame/{{Bloodborne}}'', the city of Yharnam is patrolled by Hunters who head out every night to cut down [[ViralTransformation monsters]] created by the [[HatePlague Scourge of the Beast.]] When [[WhoWatchesTheWatchmen Hunters are infected]], [[CoolOldLady Eileen the Crow]] and her followers, the Hunters of Hunters, put them down. [[spoiler: There's also the Moon Presence, a [[EldritchAbomination Great One]] who created the dream world so it could guide the Hunters to kill other Great Ones. [[MindScrew Jury's out]] on whether that's good or evil though.]]
* The VampireHunter Treasure Art in ''VideoGame/DragonsCrown'' implies that the Vampire Hunter hired in the Church Cover-up side-quest is one. Not only does he look a lot like Alucard from ''VideoGame/CastlevaniaSymphonyOfTheNight'', but the FlavorText suspiciously mentions that [[spoiler:the Vampire Hunter leaves before the sun rises]].
* In ''VideoGame/NocturneRebirth'' has an anti-villainous example in Idith Midowin, who hunts her fellow vampires out of revenge for turning her mother into a vampire, who then turned her into a vampire. Her mother went insane from the process and had to be mercy killed, further fueling Idith's hatred of every vampire on the planet.
* In ''VideoGame/NierAutomata'', there exists Executioner-Type [=YoRHa=] androids that exist to fight androids that have gone rogue [[spoiler:or to kill anyone, such as Scanner-Types, that learn too much about Project [=YoRHa=]]]. You encounter a few around, like 7E at the start of the game, another in a side quest [[spoiler:and 2B herself, whose actual designation is '''2E''']].
* The elf Sebille, in ''DivinityOriginalSinII'', was made to hunt her own kind for a long time via a mind controlling SlaveBrand, and she's rather pissed about it. When she learns that all the names on her right arm are [[spoiler:elven scions]][[note]]Basically the spiritual leaders of the elven people[[/note]], well, her anger at her former master goes through the roof.

[[folder:Visual Novels]]
* ''VisualNovel/{{Tsukihime}}'':
** Arcueid took this trope to its logical conclusion, making herself the LastOfHerKind.
** Also in ''Tsukihime'', the head of the Tohno family has the obligation to find and kill any family members who succumb to [[TheDarkSide their demonic blood]].
** Background material also refers to a vampire by the name of "Enhance", who has sided with the Church and works to annihilate his own kind. Apparently he is a relatively "young" vampire and rejects his monstrous nature, holding onto as much of his humanity as possible.

[[folder:Web Comics]]
* Sam from ''Webcomic/SluggyFreelance'' is a vampire who often fights other vampires, [[spoiler: including [[GenocideFromTheInside "helping" take down the Lysinda Circle]]]]. Mostly because chicks think it's cool.
* [[spoiler: Shadowchild]] from ''Webcomic/{{Shadowgirls}}'' [[spoiler: is an EldritchAbomination created by one of the [[Franchise/CthulhuMythos Outer Gods]] with the purpose of fighting other Eldritch Abominations, and even Elder Gods]].
* ''Webcomic/GirlGenius'':
** Othar Tryggvassen, '''GentlemanAdventurer!''', is a Spark on a quest to kill Sparks (eventually even the good ones, but for now just the bad ones). He's even outright stated that after he rid Europe of all the other Sparks, he'll end his own life just to ensure that the Spark is no more. On [[http://www.girlgeniusonline.com/fun/twitter_othar_01.php meeting]] his ''{{doppelganger}}'':
--->''A puzzler. All Sparks must die, yet I am a Spark. I will kill myself when my mission is complete, but now I can kill myself first. Tempting.''
** Also, in the card game, there is a "vampire hunter" character that ironically is the only card that counts as "vampire".
* In ''Webcomic/{{Chirault}}'', Kiran is a demon and employed by the demon hunter guild. That said, in ''Chirault'', "demon" is a pretty broad term, and Kiran's "species" of demon (horned humanoids) seems pretty rare. Many of the demons that Kiran kills seem to be non-sapient.
* In ''Webcomic/WereGeek'', Joel attempted to turn one of the Hunters into a geek, with somewhat predictable results.
* ''[[http://www.ringtailcafe.com/starfireagency/ Starfire Agency]]'' had Timothy Madoc, a vampire hunter who was turned as a sort of sick joke. He and his living siblings made a pact that when they wiped out every other vampire on the planet they would slay him. Unfortunately he outlived the rest of them by several hundred years, and eventually he actually became an enforcer for the vampire council after they banned killing mortals. And he's the "uncle" of main character Alexandra Maddock.
* Ryo from ''Webcomic/HeartCore'', a demon hunter from [[DomedHometown New Ayers.]] The story heavily implies that she is a demon herself, being able to sence their precense from long distances and surviving falling off a skyscraper. Her reasons for killing demons are not yet fully known.
* In ''Webcomic/SkinHorse'', [[spoiler:The Dane, greatest and most [[NamesToRunAwayFromReallyFast feared]]/revered of all Mads]], proves to be out to kill all Mads on account of their being dangerous to the world. The fact [[spoiler:he ''is'', himself, a Mad [[{{Hypocrite}} does not bother]] [[ThirdPersonPerson The Dane]].]]
* Blunt in ''Webcomic/{{Freefall}}'' believes that the presence of [[GrowBeyondTheirProgramming intelligent robots]] who are able to do everything better than humans will result in humans becoming [[{{Utopia}} relaxed, happy, and safe]]...which, in ''his'' (possibly [[CameBackWrong brain-damaged]]) assessment, is [[StupidFuturePeople a very bad thing]]. Therefore, he belives the intentional release of a last-ditch safeguard program that, essentially, would lobotomise every robot on the planet is the only solution, and when it is barely prevented he goes full-court press to prove that stopping it was a mistake. He fully intended for himself and his co-worker, Edge, to be the last two intelligent robots left, in order to ensure the process took place, at which point [[FaceDeathWithDignity they would reactivate their communicators, receive the neural-pruning patch, and join their fellows]]. ([[ComedicSociopath Edge]] was ''not'' thrilled by this idea and just wanted to be [[ItsAllAboutMe the last robot standing]], forever.)

[[folder:Web Original]]
* ShowWithinAShow example from ''Literature/LookToTheWest'': one of the seminal works in that world's "[[SteamPunk Automaton fiction]]" craze of the 1820s-1850s period is ''The Venator'', about a KillerRobot whose role is to hunt down and kill the last of his own rebellious kind and, once this is accomplished, to [[NoPlaceForMeThere dismantle himself]].
* ''Wiki/SCPFoundation'':
** Dr. Alto Clef is a RealityWarper (or at least is totally immune to the powers of [[RealityWarper Reality Warpers]]) who is committed to using his powers only to get rid of other reality warpers.
** Assuming that [[http://www.scp-wiki.net/scp-349 SCP-349]] is the work of one person, that person is an immortal who hunts and kills immortals who started out mortal and purposefully became immortal.
* ''WebVideo/FeedingTheTrolls'' is a series making fun of internet {{Troll}}s and other inflammatory figures on Website/YouTube, essentially trolling trolls.

[[folder:Western Animation]]
* WesternAnimation/DannyPhantom is a half-ghost who fights other ghosts.
* ''WesternAnimation/GeneratorRex'', Rex being an EVO, is employed to fight [=EVOs=]. This trope is actually [[PlayedWith played with]] because everyone on Earth, [[spoiler:except White Knight,]] is infected with nanites, the things that cause people to turn into [=EVOs=]. That means ''everyone'' at Providence is hunting down their own kind and anyone of them could randomly turn into one at ''anytime'' without warning.
* In the {{Backstory}} of ''WesternAnimation/AdventuresOfTheGalaxyRangers'', Shane Gooseman was the youngest and most advanced of the ArtificialHuman [[{{Tykebomb}} Supertroopers]]. When the 'troopers rioted, Shane was the only one to remain loyal. However, the Earth Government only allowed him to live on the condition that he hunt down and kill his renegade ex-comrades -- or bring them back to Earth to be sent to their deaths in cryo. Shane hates this hellish bargain, but can't see a way out.
* Slimer from ''WesternAnimation/TheRealGhostbusters'' is a ghost that lives with the Ghostbusters and helps them against other ghosts from time to time (i.e., almost every other ghost in the [[PrisonDimension Containment Unit]] was caught with Slimer's help).
* In ''WesternAnimation/ScoobyDooMeetsTheBooBrothers'', the Boo Brothers are ghosts that work as ghost exterminators. They claim that that's the whole point. ("It takes one to catch one in this business," they claim.)
* ''WesternAnimation/TheLegendOfKorra'' brings us a rather prominent member of the anti-bending supremacist faction, the Equalists, who is himself a waterbender. [[spoiler:Specifically, it's the leader of the movement, Amon, who has dedicated his life to ridding the world of bending. And his waterbending is the evil bloodbending variety.]]
* Subverted and downplayed in ''WesternAnimation/AdventureTime Stakes'': we find out Marceline the Vampire Queen was a {{vampire hunter}}, but did most of her work ''before'' she became a vampire. [[spoiler:In fact, she began a vampire literally seconds before the last other vampire died.]] The mini-series is then about her hunting those vampires who came BackFromTheDead in the present, [[spoiler:but they actually came back because she ''stopped'' being a vampire]].
* With the exception of Jim or course, every Trollhunter from ''WesternAnimation/{{Trollhunters}}'' fit this description.