This is a character with the following traits:

* A ProfessionalKiller.
* An antagonist sent to capture/kill protagonist(s)
* Relentless in pursuit of protagonists. Usually a {{Determinator}}, often an ImplacableMan. Sometimes the protagonists will try to pay him off, but he'll always ignore the offer and get killed off.
* Mysterious in one or more gimmicky ways. Sometimes he's TheFaceless, sometimes TheVoiceless, sometimes he isn't named except in an EveryoneCallsHimBarkeep way, sometimes he wears a concealing suit of armor, sometimes he has an unexplained facial scar, sometimes [[SamusIsAGirl he turns out to be a]] ''[[SamusIsAGirl she]]''...

The difficulties involved in getting such incredible commitment from HiredGuns may or may not be addressed. Often a HeroKiller.

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!!Examples:

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[[folder: Anime and Manga]]

* In ''Manga/{{Gintama}}'', the {{Ninja}} who likes JUMP counts, because... [[CaptainObvious He's a ninja]], he at one time was hired against the protagonist, seems like the universe hates him and makes him meet the protagonist, and his eyes are [[IncrediblyLamePun nowhere to be seen]]. Therefore, answering all of the conditions. One way or another.
* In ''Manga/{{Appleseed}} Alpha'', the Triton cyborg team that is hunting Iris and Olson. They are [[BadassCrew 15 members strong]], use a [[RealLife/CoolPlane V-22 Osprey]] to get around, have a ''much'' [[EverythingIsAnIpodInTheFuture more advanced look]] compared to the [[UsedFuture other cyborgs in the vicinity]], and to top it off, they all have [[TheFaceless helmets with opaque golden visors.]] Except for their leader, [[VisionaryVillain Talos]], and his [[TheDragon dragon]], [[EvilIsSexy the outrageously gorgeous Nyx]], [[TheVoiceless they are all silent]].
[[/folder]]

[[folder: Comic Book]]

* The Man in Black from the ''Series/{{Farscape}}'' comics, who is TheFaceless and TheVoiceless for the first few story arcs. He's trying to kill Deke, [[spoiler:Crichton and Aeryn's newborn son]].

* Toyota the ninja from ''YTheLastMan'', with the twist that she eventually gets more characterization and rather than a stoic, silent ninja, turns out to be a huge bitch and [[ArrogantKungFuGuy Arrogant Ninjitsu Chick]].
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[[folder:Film]]

* Boba Fett from ''Franchise/StarWars''. He talks very little and wears a concealing suit of armor. Was mysterious in the original films, but dozens of novels and the prequel trilogy killed much of his mystique.
** Princess Leia was able to pose as one named Boushh at the start of ''Film/ReturnOfTheJedi''.
* The unnamed PsychoExGirlfriend from ''Film/TheBluesBrothers'' played by Creator/CarrieFisher qualifies in method, if not in profession.
* Angel Eyes from ''Film/TheGoodTheBadAndTheUgly''. "Trouble is when I'm paid, I always see my job through to the end..."
** It's not the protagonists he pursues, it's poor Bill Carson. But other than that...
** Angel Eyes' {{expy}}, Colonel GŁnther Reza of ''Film/AFistfulOfDynamite'' is what happens when one of these guys joins the regular army. He's a SilentAntagonist and ImplacableMan who pursues Juan Miranda and Sean Mallory relentlessly on behalf of the governor, and the Huerta regime.
** Technically Angel Eyes was in the army, although it seems he had a ton of leeway to come and go from the prison camp he was stationed at, and was only ever called by his rank. Makes me consider the possibility he might have been in intel, or something like that. Makes sense, given that a hitman, would have the contacts needed to be a spy.
** The special edition implies that Angel Eyes killed an army sergeant and took his identity, as he heard that the Union knew about the gold.
* Leonard Smalls, the Lone Biker of the Apocalypse, from ''RaisingArizona''.
* The Coen brothers seem to like stories with guys like this. My first thought was Anton from ''NoCountryForOldMen''.
* Joe Lefors in ''ButchCassidyAndTheSundanceKid''. So mysterious, he's never even properly seen in the film. Butch and Sundance see him once from a distance of a mile or more, then later on see someone they assume is him from behind, although it's not clear if it's really Lefors or just paranoia on their part. When Butch and Sundance were at night and planted a diversion for Lefor's men to split up and so trick them, they fall... for almost a minute. Then they resume their persecution. Those guys were scary.
** You can also tell it's Joe Lefors because he always wears a white straw hat.
* The assassin sent to get Jack Carter in ''Film/GetCarter''. He has very little dialogue with Cyril Kinnear at the near end and is distinguished only by his signet ring, inscribed with a ''J''.
* Dragan, the assassin hired by Serbian mobsters in ''LayerCake''. Seen only briefly at the end, he tracks the protagonist through almost the entire film and is always a step ahead.
* Mr. Shush, a taciturn hitman sent to kill Jimmy the Saint's gang in ''ThingsToDoInDenverWhenYoureDead''.
* The Man in Black was this to the three bandits who kidnapped Buttercup in ''Film/ThePrincessBride''.
* ''Film/CaptainAmericaTheWinterSoldier'' has the titular villain. Black Widow is clearly shown to fear him due to a previous encounter, and commented that most of the intelligence community doesn't believe he even ''exists''. He's attributed with over two dozen assassinations in the last fifty years, most of which are implied to have had a great amount of political influence, especially with the Cold War. Described as a "ghost," literally no one knows who he is or where he came from [[spoiler:-- until Steve saw his face and realized he was Bucky.]]
* ''Film/TransformersAgeOfExtinction'', like WesternAnimation/TransformersAnimated (see below), has Lockdown, who has arrived on Earth to capture Optimus Prime for unknown employers (whom we never see). He's ludicrously strong, fast and agile, managing to injure Optimus pretty badly, and is able to fight him on even terms. Before the film has even begun, he's been helping to hunt down what's left of the Autobot forces on Earth, and [[spoiler:very nearly killed Optimus in an ambush.]] He's not even interested in the war, or the reasons the Autobots are being hunted, he's just there for Optimus, and once he gets him, makes plans to leave and get his money.

[[/folder]]

[[folder:Literature]]

* The unnamed magic-resistant mercenary in ''TheBartimaeusTrilogy''.
** His name is revealed in the final book, although only mentioned once: [[spoiler: Verroq]]
* Pie'O'Pah of ''{{Imajica}}'' initially seems like one of these, but turns out to be [[HitmanWithAHeart more complex]]. [[spoiler:He winds up as the LoveInterest.]]
* Robert Asprin's [[MythAdventures Myth series]] book ''Little Myth Marker'' has a variant; Skeeve is being hunted by a mysterious ''character'' assassin that nobody has ever seen, named The Ax.

[[/folder]]

[[folder: Live Action TV ]]

* Keamy in ''Series/{{Lost}}''
* The Cousins in ''Series/BreakingBad'' are two sharkskin-suited professional killers who wield a deadly axe and target the main character for assassination [[spoiler: until his boss, who is their associate, intervenes]].

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[[folder:Machinima]]

* ''TheLeetWorld'''s Domination Guy. Gives up the pursuit, and even helps the protagonists, after a DefeatMeansFriendship / WorthyOpponent moment with Cortez. Is eventually killed by his employer for his trouble.
* Wyoming from ''Machinima/RedVsBlue''.

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[[folder: Video Games ]]

* Inverted in ''VideoGame/MirrorsEdge'': The "white guy" is a mercenary assassin, is both faceless and voiceless and wears the signature white suit and mask and [[spoiler:[[SamusIsAGirl turns out to be a woman]]]]. However he's trying to get away from Faith who is quite the determinator in pursuit and doesn't get the hint to leave things be.
* Kanon in ''VideoGame/{{Wild ARMs 2}}'' is introduced this way.
** Chelle in ''VideoGame/{{Wild ARMs XF}}''' begins this way, but her motives are revealed as the game goes on.
* The Jackal from ''IllusionOfGaia'' chases [[RebelliousPrincess Kara]] throughout the game, but only shows up near the end [[spoiler:and is quickly dispatched by a hidden booby trap.]]
* Zagi from ''VideoGame/TalesOfVesperia'' chases you though out the entire game, gets stronger every time, and [[{{Determinator}} will not die]].
* Pison in ''The7thSaga''. He comes back (twice!) after you beat him the first time, each time getting tougher, and with more special attacks.

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[[folder:Webcomic]]

* Mr. Blank from ''SamAndFuzzy''... Until we learn [[YouKillItYouBoughtIt the real reason he's been chasing Sam]] following Sam being blamed for killing the Ninja Mafia leadership.
* ''Webcomic/SluggyFreelance's'' Nash is a good example. He even survived a very lethal-looking wound.
[[/folder]]

[[folder: Western Animation ]]

* Combustion Man from ''WesternAnimation/AvatarTheLastAirbender''. He's TheVoiceless, he has a different form of Fire Bending, a strange tattoo on his head, we never find out his real name...
** Sparky sparky boom man!
* A Creator/ClintEastwood {{Expy}} hunted the [[AdventuresOfTheGummiBears Gummi Bears]].
* In ''WesternAnimation/AladdinTheSeries'' the Muhktar is first introduced as this, a mysterious, caped figure relentlessly hunting Genie.
* [[PsychoForHire Lockdown]] of ''TransformersAnimated'' fame, though he's more talkative than most. What can he say, he [[OrganTheft loves his work]].

[[/folder]]

[[folder: Real Life ]]

* Xanthippus. He was a mercenary Spartan general hired by the Carthaginians to fight Rome in the First Punic War. He trained their soldiers, corrected flaws in their battle strategy, and routed the Romans while capturing their consul. It was apparently the only battle he fought before sailing home to Lacedaemon.
** Considering the result of the war he might well have [[YouHaveFailedMe been relieved]] to get home.

[[/folder]]

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