->He shook his head, which only intensified the ringing in his ears. When had that started? With the shockwaves? During the fight with [[KnightInShiningArmor Chevalier]]?\\
Or before all that? Before the Yàngbǎn?\\
Had it ever ''stopped?''\\
He thought of the [[EmotionControl Simurgh]], thought of all of this in the context of him being just one of her pawns.\\
His head hung.\\
Always a pawn. Always the expendable one.
-->-- '''Perdition''', ''Literature/{{Worm}}''

A person is {{Brainwashed}} so that, on a certain trigger (either a situation, or else a [[TriggerPhrase phrase]] only someone in the know would ever say), they will go from their normal self to TheMole; they will most often remember nothing afterward. Occasionally, they can be programmed to do even more serious crimes, such as attacking their teammates outright, but their true value lies in the fact that their cover is so deep that not even ''they'' realise it.

If they or their teammates discover the truth, expect a lot of angst. Whether or not they are are able to break free of their programming (or at least, soon enough for it to matter) will vary from story to story.

In spy and technothriller fiction, such agents are an extreme form of what's commonly known as "sleeper agents", or just "sleepers".

See also {{Brainwashed}}, BerserkButton, MoralityDial, TomatoInTheMirror, ConvenientlyUnverifiableCoverStory, AlternateIdentityAmnesia, and LotusEaterMachine. Compare MemoryGambit, which is when you do this to yourself. May require {{Deprogram}}ming to cure and, if not cured sufficiently thoroughly, is one of the causes of BrainwashResidue.

In Troper Addition, this trope is MemoryGambit and NeuroVault meet DeepCoverAgent.


[[folder:Anime and Manga]]
* This is how Yoh Hinomura effectively becomes ''Manga/CryingFreeman'': with the assassin doctrines of the 108 Dragons implanted in his subconscious, all it takes for him to start a mission is the same trigger phrase he heard when he was indoctrinated.
%%* ''Manga/LostBrain'' pulls this one.
* ''Anime/TengenToppaGurrenLagann'' has [[spoiler:Nia becoming the agent of the Anti-Spirals when the population reaches 1 million]].
* Happens in ''Manga/{{Naruto}} Shippuden'' with Sasori's spies ([[spoiler:Yuura]] and [[spoiler:Kabuto]]).
* [[spoiler:Anew Returner]] in ''Anime/{{Gundam 00}}''. In this case, the trigger is the presence of a particular person: [[spoiler:her twin brother, Revive Revival, who gets captured midway the series and "resets" her.]]
* [[spoiler:Kirika]] from ''Anime/{{Noir}}''. She was an incredibly awesome assassin ''before.'' Fear what she became.
* ''Anime/CodeGeass'': Lelouch's mind-controlling HypnoticEyes lets him give people orders that cannot be refused, and in addition to the immediate {{Brainwashed}} victims, he can also create a ManchurianAgent by applying special conditions to the command. For example, he made a Britannian officer into a Manchurian agent that would see him as [[spoiler:Princess Cornelia (under whose command he was)]] when he grabbed his collar.
* Covered by the one-off character of Twyla in ''Anime/{{Voltron}}''.
* [[spoiler:Mitsuki, and probably the other Wolves]] in ''Manga/{{Doubt}}''
* Occurs in ''Manga/MahouSenseiNegima'' with [[spoiler:Shiori]]. In this case, it seems to simply be a decoy to keep Ala Alba from noticing something particular, but Mana [[GenreSavvy notes that they can't rule out the possibility]] of a TriggerPhrase.
* In ''Manga/DetectiveSchoolQ'', [[TheSyndicate Pluto/Meiousei]] does this all the time to its clients and its own agents as a failsafe - on the trigger, they'll kill witnesses, or themselves, or go insane... and it's not pretty.
* In ''Manga/DeathNote'', [[spoiler:Light]] acts as a Manchurian Agent on behalf of [[spoiler:himself]]. One of the most ingenious plot twists in a series full of plot twists.
* ''Manga/DanceInTheVampireBund'' provides the nanotechnology known as the "Pied Piper" which when applied to vampires forces their mind to register any orders they receive as coming directly from their [[VampireMonarch overlord]] ("Release the insane werewolf and lock down your HQ so you are trapped with it? Of course My Liege").
* This is the power of one of Sinbad's Djinns in ''Manga/MagiLabyrinthOfMagic''. Zepar uses sound waves to interfere with people's minds and force Sinbad's Rukh into their bodies. [[spoiler:Princess Kougyoku is the only known one, and we witness how it happened. Sinbad confessed she is not the only one; there are two others, one in Sindria and another one somewhere else.]]
* ''Franchise/YuGiOh''
** In [[Anime/YuGiOh the original anime]], Haga did something similar to this to Jonouchi by having a kid plant a [[http://yugioh.wikia.com/wiki/Parasite_Paracide Parasite Paracide]] card in Jonouchi's deck; in this case, the "trigger" was Haga's "Reckless Parasite" card. (Not a real card.) Unfortunately for Haga, he underestimated Jonouchi's resourcefulness; he was actually able to use the Parasite Paraside to destroy Haga's Perfectly Ultimate Great Moth.
** In the fourth season of ''Anime/YuGiOhGX'', Saiou did something similar, planting a copy of [[http://yugioh.wikia.com/wiki/Arcana_Force_0 Arcana Force 0 - The Fool]] in Judai's deck; in this case, the "trigger" was Saiou's Spell Card, "Decisive Power of Absolute Destiny" again, not a real card. With the Fool on Judai's side of the field, Saiou was nearly unbeatable, able to control the outcome of any of his cards that depended on coin tosses, but like in the case of Jonouchi, underestimated his foe's resourcefulness (and in ''this'' case, took ''very'' unnecessary risk, proving that when he had to rely on ''actual'' luck, his was pretty bad).
** As far as humans went, Bruno from ''Anime/YuGiOh5Ds'' was a ''willing'' Manchurian agent, at least initially. Like Aporia, he was an android containing the consciousness of one of [[BigBad Z-One's]] allies from the BadFuture that the villain wished to undue [[WellIntentionedExtremist (with no regard for who might die in the process)]] but in Bruno's case, his memory was suppressed, and he was programmed to act as Team 5D's advisor and ally, both as Bruno and as his alter ego of "Dark Glass". Bruno's true programming didn't kick in until the Arc Cradle appeared, threatening to destroy Neo Domino, and he turned against Yusei, combatting him in a lethal duel thought outer space where a black hole threatened to consume them. [[spoiler:However, he started to have second thoughts and resist his programming, and in the end, [[RedemptionEqualsDeath sacrificed himself to help Yusei escape the pull of the black hole]].]]
* In ''LightNovel/TheRisingOfTheShieldHero'' "Justice zombies" are infected by being cut with a [[MindControlDevice cursed dagger]] that leaves them under the complete control of [[spoiler:Malty and her co-conspirators]]. In the early stages of their spread the zombies acted completely normal so they could perform sabotage and infect others. When their sabotage or infection is revealed they become openly hostile to anyone not aligned with them and attack while shouting propaganda.

[[folder:Comic Books]]
* In ''ComicBook/AssassinsCreedTheFall'', [[spoiler:Daniel Cross]] serves this role in [[spoiler:Warren Vidic]]'s EvilPlan to weed out the Assassin Order.
* ComicBook/BlueBeetle, in a memorable and bloody couple of issues of ''Comicbook/JusticeLeagueInternational''; they ultimately had to resort to a JourneyToTheCenterOfTheMind to get him deprogrammed.
* [[Comicbook/TeenTitans Titans]][=/=]ComicBook/TheFlash supporting character Frances Kane was originally programmed this way by her ''therapist'', probably contributing to her [[SuperpoweredEvilSide later mental problems]].
* In the comic book ''ComicBook/OneHundredBullets'', the phrase (used to cause old memories to re-emerge rather than force them to do something against their will) is "Croatoa."
* Subverted in an issue of ''ComicBook/JusticeLeague Adventures'', where this is attempted against the subject's will, but whoever it was made the mistake of choosing ''ComicBook/TheQuestion'' as their mole. He's so paranoid, he actually ''found himself out'' before he could do any damage.
* These turn out to be central to the plot of ''Hondo-City Justice'' - a large number of girls with alien DNA are triggered to kill the drokk out of any {{Yakuza}} members they happen to see. Asahara manages to overcome it.
* In the conclusion of the ''Comicbook/{{Daredevil}}'' "ComicBook/{{Shadowland}}" event, [[spoiler:Typhoid Mary]] was revealed to be Kingpin's Manchurian Agent.
* Inverted in the {{Creator/Marvel}} ''[[ComicBook/TheTransformers Transformers]]'' comics when Ratchet, forced by Megatron to rebuild [[TheStarscream Starscream]] as a Pretender, hides Starscream's true personality deep in his neural circuits. Megatron then sends the "new" Starscream against the Autobots and Decepticons on Earth. One shot from Hot Rod damages Starscream, and he ''immediately'' reverts to the DirtyCoward we all know and love.
* ''ComicBook/TheTransformersIDW'':
** ''ComicBook/TheTransformersMegaseries'' has Nightbeat, who was reprogrammed by the inhabitants of the Dead Universe to kill Optimus Prime when the time was right. Nightbeat being [[SpottingTheThread Nightbeat]], he realises somthing's up, and has Hardhead accompany him when he goes investigating the planet he was captured on, so that if he turns Hardhead can kill him. He does, and Hardhead does as well. [[ComicBookDeath He gets better]], but the programming lingers until ''ComicBook/TheTransformersDarkCybertron'', when Rodimus finally breaks him out of it.
** There's also Beachcomber, who was implanted with a cerebro-shell and sent to assassinate Blaster when the time was right. He almost succeeded. Blaster eventually recovers and finds out, and encourages Beachcomber to fight what's been done to him. It nearly kills the poor guy.
* ''ComicBook/PathfinderWorldscape'' had elf thief [[TabletopGame/{{Pathfinder}} Merisiel]], who had been transported to the Worldscape 20 years prior to the storyline' beginning by [[EvilSorcerer Kulan Gath]] and [[GodSaveUsFromTheQueen Empress Camilla]] to help them acquire important artifacts of immense power. After succeeding on this task, she is returned to her home with her memories of the past events wiped out. Many years afterward, she is brought back to the Worldscape, this time bringing with her the adventuring party she had joined. Her memories are restored and [[TheStarscream Gath]] conspires to rob Camilla's artifact so he can gain ultimate power and has the thief infiltrate her court to steal it and kill the empress. [[spoiler:After helping Gath in his plans, its revealed the entity that returned Merisiel to her home world and wiped her memories guarded the artifacts she stole and Merisiel was the Manchurian Agent ''against'' Gath all along, making this a rare heroic variant of this trope]].
* In ''ComicBook/MindMgmt'' both the title organization and their opponents seem to utilize a number of these. One family man codenamed "The Bear" receives a piece of paper reading "[[TriggerPhrase mulligan duck]]", kills his wife (and dog), and sets off on an anti-MM mission.
* One of the many loathed parts of ''ComicBook/TheCrossing'' was attempted to retcon that Franchise/IronMan had been this for Kang since Franchise/TheAvengers first fought him, having brainwashed him into being a mole for him. As part of ''ComicBook/AvengersFroever''[='=]s damage control, it was retconned that it was really Immortus (at the time Kang's older self) and it only went back to ''ComicBook/OperationGalacticStorm'' (and Tony leading half of the Avengers to kill the Supreme Intelligence was an attempt to drive the Avengers back to Earth that backfired) and ''The Crossing'' itself was merely to stall the Avengers until ComicBook/{{Onslaught}} starting running amok.

[[folder:Comic Strips]]
* ''ComicStrip/ModestyBlaise'': In "Our Friend Maude", Maude Tiller is brainwashed to assassinate Rene Valois, the head of French intelligence, while believing she is acting on orders from Sir Gerald.

[[folder:Fan Works]]
* [[http://www.fanfiction.net/s/5971984/1/The-River This]] Season 3 ''Series/BuffyTheVampireSlayer'' fic where Faith turned out to be a ManchurianAgent placed by Wes to infiltrate the Mayor’s organization and with a simple phrase, wake up and come back to fight with the white hats. But then there’s the big reveal in the finale, [[spoiler:the real Faith was the evil one from the start, Wes having made up the alternate Faith to give her a chance at redemption]].
* ''Fanfic/{{Pokeumans}}'': Theoretically, everyone (including ''you'') is one of these - the trigger is seeing a transforming Pokeuman, and afterwards everyone's memory of the incident is erased.
* [[spoiler:Gadget]] has become one in ''Webcomic/OfMiceAndMayhem''. She has a chip inside her head that automatically makes her kill a leader at 9 a.m. unless she is sedated. To make matters even worse for her, she has already poisoned a [[{{Qurac}} Middle East]] dictator to death in a test run which means that a human has been assassinated by [[spoiler:a Rescue Ranger]].
* [[http://askresearchertwilight.tumblr.com/post/23330054525 In the Ask Researcher Twilight]] Tumblr fanfic blog on ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', Twilight has turned Rarity into one of these.
* ''Fanfic/Digimon02TheStoryWeNeverTold'' reveals during [[WhamEpisode Chapter 64]] that [[spoiler:the Armor Digivolutions were designed as this; when [[TheChessmaster Oikawa]] says a key phrase while the Digimon are in them, they're brainwashed into serving him.]]

* ''Film/AmericanUltra'' has the lead character under ''heavy'' psychological programming to forget he was ever a field operative[[note]]It actually takes several attempts to use his verbal activation phrase, and even then it's slow to fully unlock[[/note]]. Apparently because a side-effect of the program's techniques was giving the test subjects mental instability. Later sub-programs made use of test subjects that were already unhinged.
* In ''Film/CaptainAmericaCivilWar'' we learn that [[spoiler:although Bucky is no longer being put through the full HYDRA brainwashing process, he can still be controlled by anyone who can recite a certain sequence of code words. And [[TearJerker he recognizes them, but can't stop it from happening]].]]
* More or less the entire point of the movie ''Film/TheCurseOfTheJadeScorpion''. One of the key words was "Madagascar". Bonus points in that one of the people thus hypnotized was the detective in charge of his own investigation, and doesn't realize it.
%%* [[spoiler:Morgan Sullivan]] was his own Manchurian Agent in the movie ''Film/{{Cypher}}''.
* In ''Film/DemolitionMan'', Dr. Raymond Cocteau intends to use [[AxCrazy Simon Phoenix]] in this way to assassinate the leader of the underground resistance.
* From the 1983 comedy ''Going Berserk'', John Candy's character is brainwashed by a cult to assassinate his fiancée's congressman father using a playing card as a trigger. Something goes wrong in the hypnotism though, and the trigger doesn't make him a cold-blooded assassin as much as a loud obnoxious asshole - HilarityEnsues.
** Candy is also one in one of the very few funny moments in ''Volunteers'' (1985). Captured by the Red Army, he laughs at their plans to brainwash him. One jump cut later he's quoting Mao at every opportunity to the point where he's annoying the hell out of his new commander.
%%* ''Film/TheIpcressFile''.
* ''Film/JohnnyEnglishReborn'' has the bad guys use a compound to turn anyone into a hidden assassin before dying from a heart attack.
* The near-eponymous (technically speaking, the Manchurian Agent isn't the "Manchurian Candidate", but that's nitpicking) ''Film/TheManchurianCandidate'' (TheFilmOfTheBook). There are currently two adaptations, the 1962 adaptation and the 2004 adaptation.
* Arguably, the entire population of ''Film/TheMatrix'', being as how anyone who hasn't been freed from the Matrix can become an Agent at any time. It's arguable because, while the result is the same, from the perspective of anyone inside the Matrix they physically turn into an Agent.
* ''Film/TheNakedGun''. [[spoiler:Reggie Jackson]] is programmed to assassinate the Queen of England. There's even a ShoutOut to ''Film/{{Telefon}}'' when the technique is first demonstrated.
* ''Franchise/StarWars'': The Clone Troopers from the prequels are an ''army'' of Manchurian Agents. However, the manner of how this was done differs between canon and ''[[Franchise/StarWarsLegends Legends]]''.
** ''[[Franchise/StarWarsLegends Legends]]'': Palpatine had a series of genetic "orders" implanted in them that he could activate them when ready. Until then, the Clone Troopers simply acted as normal, friendly soldiers. The only order we see is [[ThePurge Order 66]], which, when said, caused every single Clone Trooper who heard it to instantly consider any Jedi a traitor to the Republic and attack them. He also had plenty of failsafes to keep them loyal to him and him only.
*** The Expanded Universe showed that some of the Clone Troopers were strong enough to resist Order 66 and that those who simply didn't hear it remained good (one Clone Trooper who was stuck on an uncharted world during the end of the Clone Wars later joined up with the Rebellion), but the vast majority of them succumbed to it, and those who didn't were either forced into hiding or killed.
** Canon: See ''WesternAnimation/StarWarsTheCloneWars'' in the Western Animation folder.
* ''Film/{{Telefon}}'' (1977). The KGB plant 51 such agents with fake identities in the United States, programmed to commit acts of sabotage on receiving a TriggerPhrase. Unfortunately a fanatical Stalinist opposed to détente steals the list of agents, and the Soviets have to send Charles Bronson to stop him.
* ''Film/TerminatorGenisys'' lampshades it, with Kyle Reese trying to convince Sarah Connor to not trust the "Guardian" T-800, on the grounds that it might have hidden programming that it's not even aware of.
* ''Film/UniversalSoldierDayOfReckoning'': The [[CloneArmy UniSol clones]] can be programmed with false memories.
* Ann is used this way by Korvo(through hypnoses) in ''Film/{{Whirlpool}}''.
* In the movie ''Film/{{Zoolander}}'', the title character is hypnotized into becoming a berserk assassin when he hears the song "Relax" by Music/FrankieGoesToHollywood. As is ''every'' [[TheConspiracy major assassin in US history]]. Maybe not to that particular song, but the brainwashing thing.
* ''Film/X2XMenUnited''. Stryker utilizes several mutants this way, in conjunction with BrainwashedAndCrazy. Cyclops is one of them, and then we find out that Stryker's Dragon Lady Deathstrike is another one.

* Creator/LordByron was ''almost'' used as one of these in Creator/TimPowers' ''Literature/TheAnubisGates''.
* In ''Literature/Babel17'', one saboteur turns out to have been programmed by [[spoiler:Babel-17 itself, which is crafted to make people hate the Alliance]].
* Programming people is routine for the protagonist's agency in Creator/OlegDivov's ''Brothers in Reason''. [[spoiler:The main character himself]] as well as [[spoiler:his half-brother]] are programmed to shoot [[spoiler:their father]] on sight, one with a gun and the other with a laser implanted in the forearm. The first one is revealed when he begins to suspect something and asks his half-brother to hypnotize him. When he becomes aware of the programming, he is now free to disobey it.
** It is standard policy for all agency employees to undergo brainwashing whenever a [[TheMole mole]] is suspected.
** This is the same agency that psychically zombifies the entire population of Earth into loving everything Russian, the ultimate psychotronic weapon.
* In the ''Literature/CaptainUnderpants'' books, Mr. Krupp turns into Captain Underpants when he hears fingers snapping, and returns to normal when water is poured on his head.
* In David Wingrove's ''Literature/ChungKuo'', a servant is made to attack General Tolonen.
* ''Literature/TheDresdenFiles'': In ''Literature/TurnCoat'', there are abounding fears within the White Council of Wizards that there are traitors running amok after one of the Senior Council is murdered. It turns out that someone has been mucking with the heads of [[spoiler:the entire younger generation of wizards, turning them into sleeping assassins/suicide bombers, including Captain Luccio, the head of the Wardens]]. On top of that, [[spoiler:all of the other wizards have been quietly influenced by subtle mind-control enchantments over the course of the war]].
* In Frank Herbert's ''Franchise/{{Dune}}'', the Bene Gesserit can use psychosexual conditioning techniques (called hypno-ligation) to control people. They can trigger their victims by using code words.
** The [[Literature/DuneMessiah ghola Hayt]] has a trigger word that is intended to [[spoiler:trigger an assassination. His ability to resist it becomes something of a plot point.]]
** The [[spoiler:Idaho ghola]] in ''Literature/HereticsOfDune'' also has a trigger, [[spoiler:but it doesn't get used on its intended recipient]].
* ''Literature/{{The Glass Books of the Dream Eaters}}'' features a trigger phrase known only to the highest echelon of the Cabal, used on those who have undergone the Process, that makes them [[spoiler:follow the instructions given by the person who uses the phrase to the letter.]] It varies based on several factors; it includes a colour ("blue" for those who underwent the Process at the Institute, "orange" for those who underwent it at Harschmort,) a Biblical reference ("Magdalene" for the recruited followers, "Caesar" for the officers, etc.,) the place they were recruited ("Royale" for the Hotel Royale, "Regiment" for the army,) and the words "ice consumption." So, for example, the Countess uses "orange Magdalene orange Royale ice consumption" on [[spoiler:Miss Temple, when trying to determine whether or not she underwent the Process at Harschmort.]]
* The ''Literature/HonorHarrington'' verse has several methods for doing that. One is called "psych adjustment", which implants a series of compulsions into the unwitting subject that causes him or her to do something when certain conditions are met. However, this requires a lengthy period of programming, which can be problematic if the "agent" has a rigid schedule or urgent responsibilities. A new technique is pioneered by [[spoiler:the [[AncientConspiracy Mesan Alignment]],]] involving nanites that, at a specific time, take over the person's nervous system and force the body to act the way the programmer desires. This method also involves AndIMustScream, since the agent in question is aware that he or she is not in control of the body but can't do anything about it. After the agent is dead, the nanites self-destruct, leaving no trace for anyone not specifically looking for them.
* Creator/DeanKoontz's ''Night Chills'' has an entire town of sleepers triggered by the phrase "[[TriggerPhrase I am the key]]".
** In ''Literature/FalseMemory'', victims are programmed with two-step triggers: the name of a novel character, followed by a haiku. If the haiku is not recited for several seconds, the victim will become conscious again, with no memory of hearing the trigger or what they were doing immediately before. They will only respond to commands or statements; if asked a question (unless it is phrased as a command, i.e. "Tell me if you understand"), they will merely repeat it back.
* Imriel in ''[[Literature/KushielsLegacy Kushiel's Mercy]]'': the trigger is kissing his beloved.
* In ''Literature/ALandFitForHeroes'', one of the Imperial marines accompanying Archeth on her mission is actually a dwenda who erased his own memory and brainwashed himself into believing he was a loyal soldier order to infiltrate the military. If certain conditions are met, he will regain his memory of his true identity and assassinate her. [[spoiler:Warhelm Ansharal figures this out and modifies the agent's trigger, both protecting Archeth and arranging for the elimination of a different target of Ansharal's choice]].
* Inverted in the Literature/LordDarcy story ''A Case Of Identity'', where [[spoiler:Lord Seiger]] is a homicidal maniac when in his ''natural'' state, but has been constrained by mental healers' geas effects to be entirely harmless and trustworthy. [[spoiler:At least, until he's fed the correct trigger phrase by his superior in the Angevin royal spy organization, which unleashes his full AxeCrazy lethality on enemies of the Crown.]]
* Richard Condon's ''Film/TheManchurianCandidate''. The TropeNamer.
* Inverted in ''Literature/{{MARZENA}}'', they're not Manchurian! They're Anti-Manchurian, evil people turned into good people thanks to [[LaserGuidedAmnesia laser-guided brain surgeries]] and then who turns evil again when their brain heals and they recover their memories (It's just artificially induced DID really).
* Raul Diaz in ''Literature/MrBlank'' is referred to as a Manchurian Candidate. Brainwashed by so many different conspiracies, traded as a pawn, he even [[spoiler:gets activated to kill by accident.]]
* In the fourth ''Literature/ASeriesOfUnfortunateEvents'' book, [[spoiler:Klaus is repeatedly taken in and out of a brainwashed state, which is triggered by the word "lucky" and ended by the word "inordinate"]].
* In the ''TabletopGame/{{Shadowrun}}'' novel ''Night's Pawn'', a MegaCorp executive's daughter is programmed to kill her father as soon as they're alone together. Worse, she's programmed to do so with a concealed bone spur that can't be detected on scans ... and that's designed to slit her own arteries as it emerges, causing her to bleed to death and thus be unable to explain what happened to her.
* In ''Literature/TheStand'', Tom Cullen is hypnotized and programmed to be a spy for the Boulder faction. The full moon is his trigger for returning to report his observations. [[{{Catchphrase}} M-O-O-N, that spells moon]].
* ''Franchise/StarWarsLegends'',
** One of the [[Literature/XWingSeries X-Wing books]] used this. The trigger phrase, different for each agent, was a nonsensical problem (for example, "Those Wookiees are dancing in the parlor again") that instantly became the sole focus of the brainwashed person's life -- and the only way to "solve the problem" was to carry out the preprogrammed mission, usually an assassination.
** An earlier ''X-Wing'' book had a version not triggered by a code phrase, caused by long-term torture and reconditioning in the Lusankya prison. These agents would be unaware of what Isard had done until they were triggered, at which point they became [[ApologeticAttacker Apologetic Adversaries]]. The example above was considered more dangerous because it could be engineered by only a day's worth of chemical treatments after kidnapping the target, and it also managed to stir up FantasticRacism by, for example, causing a fleetwide suspension on Twi'lek pilots.
** In the story "Therefore I Am" from ''Literature/TalesOfTheBountyHunters'' the assassin droid IG-88 plans to use a program to turn every droid in the galaxy into one, inciting a droid rebellion. The most astonishing part is, he ''actually manages to out-gambit Palpatine himself''. The only reason IG-88 fails is because the final part of his plan -- which he succeeds at doing -- involves downloading his mind into the second Death Star's computer core (and even improves the super laser's accuracy) right before the Battle of Endor. (Which in case anyone forgot, is where the Death Star II is blown up.)
* In ''Literature/{{Worm}}'', the [[OmnicidalManiac Simurgh]] ''mass produces'' these. As a powerful telepath, she gets into the minds of those she encounters and twists them until they will fulfill her needs. These agents can go undetected for years, acting perfectly normal until they get into position to influence something important, at which point they appear to snap. The Simurgh's impressive precognitive powers only makes this ''more'' effective.

[[folder:Live-Action TV]]
* [[spoiler:Talia Winters]] in ''Series/BabylonFive'', [[spoiler:and Garibaldi]] in season 4.
* [[spoiler:Sharon "Boomer" Valerii]] from the 2000s ''Series/{{Battlestar Galactica|2003}}''.
* In ''Series/BigWolfOnCampus'', the Evil Werewolf Syndicate try to increase their numbers by doing this to Tommy; whenever he hears the code phrase he's supposed to bite the nearest person.
* Creator/DerrenBrown's special "The Heist" was a real-life attempt at creating four of these.
** In case you're wondering... [[spoiler:[[ParanoiaFuel 75% success rate]].]]
** In his ''The Events'' special, he picks a susceptible person in a cafe and then programs the guy to steal a TV when he sees a girl wearing red and holding a balloon. The guy does and then tries to come up with a lame excuse for his behavior when caught.
** He goes even ''further'' in the special "The Assassin". He picks a susceptible person from his audience and then spends some time programming him to respond to the polka dot pattern (which puts him into a susceptible trance after which he doesn't remember anything) and a specific ringtone (that causes him to think he's still at the shooting range firing at a target). The only other thing that is required is someone to tell him who the target is. In this case, it's Creator/StephenFry. [[spoiler:The guy successfully "assassinates" the actor in the middle of a crowded theater; luckily, Derren is there to clear things up and remove the conditioning]]. Derren keeps referring back to the assassination of Bobby Kennedy, whose killer Sirhan Sirhan has been claiming for decades that he's been programmed by the CIA.
* Spike in season seven of ''Series/BuffyTheVampireSlayer''. The trigger is "Early One Morning", a song his mother used to sing when he was a child.
* The episode "Attack Angels" of ''Series/CharliesAngels'' features a villain who runs a business creating examples of this trope and selling their services to other villains.
* ''Series/DoctorWho'':
** The Auton Romans in [[Recap/DoctorWhoS31E12ThePandoricaOpens "The Pandorica Opens"]], [[spoiler:including Rory]].
** In [[Recap/DoctorWhoS32E2DayOfTheMoon "Day of the Moon"]], the ''entire human race'' becomes this. The Silence's ability to control humanity via post-hypnotic suggestion ends up [[HoistByTheirOwnPetard backfiring]] in the most spectacular way possible when one of them is recorded uttering the following words (intended as a boast rather than a command), which is then broadcast to the whole planet during the Apollo 11 Moon landing.
--->'''Silence:''' You should ''kill us all on sight''.
* [[spoiler:Mellie and Perrin]] in ''Series/{{Dollhouse}}''.
--> '''Adelle [=DeWitt=]:''' There are three flowers in a vase. The third flower is green.
** It's not perfect, though. If someone realizes they're being triggered, they may resist, to an extent. Specifically, [[spoiler:Mellie resists when ordered to kill Paul, and opts to shoot herself instead]].
* In the ''Series/{{Farscape}}'' episode "A Prefect Murder", Aeryn is turned into one via a mind-controlling bug. There's also a subversion: after being bitten. John pieces together what's happening just in time to hand over his weapon and leave the area.
* ''Series/{{Firefly}}'''s River Tam, although it's only really seen in TheMovie, ''Film/{{Serenity}}''. Her trigger was a subliminal message buried in a Fruity Oaty Bars commercial, which caused her to go into [[WaifFu martial-arts-killing-machine]] mode.
* ''Series/GetSmart'' - Max is abducted and brainwashed to assassinate the Chief over their usual chess game at the club - an employee is the KAOS agent behind the scheme and knows the Chief always wins, so he makes "Checkmate" the trigger. It's ''Get Smart''-- ''of course'' it doesn't work as planned.
** And the funny part at the end after the villain is defeated, Max is ''still'' reflexively shooting at anyone saying "Checkmate" and sheepishly explaining that a bad habit is hard to break.
* In one episode of ''Series/InSecurity'', N'udu is brainwashed and assigned to kill his best friend.
* In a first-season episode of ''Series/LoisAndClark'' a magician hypnotizes people into becoming his willing slaves when they hear the phrase "moon and stars", with both Superman and Lois falling victim to this. In another episode, Lois thinks she was taken in a stereotypical AlienAbduction (when Clark expresses doubt, she points out that ''he himself is an alien''). In reality, it was an implanted memory by a criminal, who triggers Lois to do something reckless, such as walk out onto a busy roadway, in order to distract Superman, while he steals something.
* Done twice in the ''Series/MacGyver1985'' episode "Brainwashed". Jack Dalton and Pete Thornton are both programmed with different code phrases buried in the speech to be given by the president of a fictional African country they're programmed to assassinate. The simultaneous missing weekend over which they were programmed is covered by FakeMemories.
* ''Series/MagnumPI'': During their service in Vietnam, Magnum and T.C. were captured by the Viet Cong. One episode revealed that a KGB officer had turned [[spoiler:T.C.]] into one of these. [[spoiler:They activated him in order to assassinate some Japanese dignitaries, but Magnum was able to stop the plot and T.C. was sent to a hospital for deprogramming.]]
* The ''Series/MissionImpossible'' episode "Mindbend", where brainwashing is used. They have a drug prepared to counter it...
** The second series episode "The Assassin", with hypnosis and biochips behind the ear.
* The setup for ''Series/MyOwnWorstEnemy'' is an inversion as Edward Albright, the spy, is the original personality, and Henry Spivey, a quiet middle-management office employee with a wife and two kids, is the implanted cover. The whole premise of the show is the breakdown of the chip that separates the two lives and Henry becoming aware of his alter-ego. Cue the inexperienced Henry going on missions, and Edward sleeping with Henry's wife.
* ''Series/TheNewAdventuresOfRobinHood'': In "The Hanged Man", the Sheriff uses a MadScientist to brainwash either Marion, Little John, or Tuck to kill Robin.
* ''Series/TheOuterLimits1995'': The episode "Straight and Narrow" deals with a prep school which is a front for an agency training these. It is revealed at the end that their "recruits" have infiltrated many agencies, including law enforcement. Programming is done with an implanted computer chip, although it fails with someone who has ulcers due to a treatment formerly prescribed for it.
* In ''Series/PowerRangersRPM'', while [[spoiler:Dillon]] is the most obvious, [[spoiler:a ''significant percentage'' of the population of Corinth have been turned into cyborgs without their knowledge, to turn on the rest of the population when Venjix triggers the command.]]
* Rocko from ''Series/PuppetsWhoKill'' was brainwashed into becoming an assassin for the government in one episode. The trigger to switch him between normal and brainwashed was to show him a Jack of Diamonds. Naturally, this led to [[HilarityEnsues a whole bunch of stuff happening]] that made the two scientists stop and note that they shouldn't have used something as common as playing cards for the trigger. At the end of the episode, the scientists attempt to remove the brainwashing and are seemingly successful... at least, until the local news introduces their new weatherman, Jack O'Diamond.
* A couple episodes of ''Series/StargateSG1'' use this. [[spoiler:The agents trigger to a particular event or time after being brainwashed to do so, kill the target(s) and then themselves.]]
* The Romulans do this to [=LaForge=] in the ''Series/StarTrekTheNextGeneration'' episode "The Mind's Eye".
* ''Series/StarTrekDeepSpaceNine''
** In the episode "Inquisition", Bashir is accused of being a ''willing'' one of these (as in, he agreed to become an enemy agent and then suppressed any knowledge of it in order to maintain his cover perfectly) [[spoiler:by Section 31. He's not, it's all just a test by the SecretPolice to screen him for initiation into their organization whether he likes it or not.]]
** In the episode "Whispers" [[spoiler:an alien rebel faction has come up with a twist; rather than try and brainwash O'Brien to sabotage peace talks, they replace him with a programmable clone who otherwise believes himself to be the original.]]
* ''Series/StarTrekEnterprise''. In the MirrorUniverse, Mirror Tucker is tortured for hours after a suspicious overload shuts off the ship's cloaking device and internal sensors. Afterwards he accuses Mirror T'Pol of doing the deed and framing him for it.
-->'''T'Pol:''' You're mistaken.\\
'''Tucker:''' The hell I am! I think I'd remember if I had sabotaged the ship!\\
'''T'Pol:''' Not necessarily.\\
'''Tucker:''' [{{beat}}] What did you do to me?\\
'''T'Pol:''' I lured you away from Engineering with the promise of a sexual encounter. Once we were alone in my quarters, I implanted a telepathic suggestion. I compelled you to sabotage the power grid. After you completed the assignment, we melded again. I altered your memory of what had happened.
* ''Series/{{Supernatural}}'': Castiel spends most of Season 8 being controlled by Naomi, the head of Heaven's black ops division, only remembering this fact when called back to Heaven to report to her. [[spoiler:When the retrieves the Word of God tablet, however, its energy breaks her control.]]
* A ''Tekwar'' episode had an agent undergo this to infiltrate a criminal organization, which screens entries using a lie detector. The criminals somehow catch on and interfere with the switch, causing a personality crisis – resolved by the main character preparing to make the coup de grace.
* The alien "sleeper agents" on ''Series/{{Torchwood}}''.
** Also in the episode "They Keep Killing Suzie", where a certain someone [[spoiler:Suzie]] encodes multiple triggers into a hapless man she met at a philosophical group [[spoiler:in order to get herself brought back from the dead and take over Torchwood]].
* This was a favourite tactic of the aliens in the 1970s British sci-fi series ''Series/{{UFO}}''.
** In "Kill Straker!" The aliens give Paul Foster a subliminal command to kill Commander Straker.
** In "The Man Who Came Back", Commander Straker's friend Collins turns out to have been brainwashed by the aliens into an assassin. His orders: kill Straker.
* In the (original) TV series of ''Series/{{V 1983}}'', Ham Tyler is brainwashed to kill resistance leader Michael Donovan.
* The ''Series/{{Vegas}}'' episode "Lost Monday" has Binzer being hypnotized into constructing and detonating a bomb. The hypnotist instructs him to respond to the trigger word "superstar".
%%* Several episodes of ''Series/TheWildWildWest''.
* ''{{Series/Alias}}'': Martin Shepard, who was brainwashed to be a killer for [=SD6=]. In a clear {{homage}} to ''Film/TheManchurianCandidate'' he was triggered by someone reciting a poem ("No Man Is an Island" by Creator/JohnDonne) then do whatever they said. He then would forget everything if it was recited again. After he began to break free of the conditioning, Shepard checked into a mental institution, and eventually broke free entirely, but not before helping Sidney. It's revealed he's the one who killed her boyfriend Danny under the command of [=SD6=].
* In ''Series/StarTrekDiscovery'', it's revealed that Starfleet has a Manchurian Protocol specifically designed to detect any such mind manipulation. [[spoiler:It fails to expose Ash Tyler as the Klingon Voq, as the real Ash Tyler's memories were actually overlayed on top of Voq's suppressed consciousness, avoiding the protocol (presumably, the Klingons knew about it). It's only when Dr. Culber digs deeper, at Tyler's request, that he discovers the ruse. Unfortunately for him, he tells it to Tyler while they're alone in sickbay, so Tyler/Voq [[NeckSnap snaps his neck]]]].
* Played with in the mini-series ''Confessional'' (based on the thriller by Jack Higgins). Cuchulain is conditioned to be both a god-fearing Catholic (his cover identity) and a ruthless KGB assassin, with each aspect reinforcing the other (the TriggerPhrase for his conditioning is the Lord's Prayer). However in this case he's fully aware that he's an assassin.
* An episode of ''Series/{{CSI}}'' dealt with people that were brainwashed by a magician to steal stuff for him, using the TriggerPhase "it's time for your vacation". The police finds out about this scheme when they start to investigate the apparent (and pretty weird) suicide of a woman, and then it turned out that the woman heard these words on a TV advertisement, started to hallucinate that she was on a pool, [[CarCushion and did a swan-dive out of her window straight onto the roof of a passing bus.]]


[[folder:Tabletop Games]]
* A number of social Charms in ''TabletopGame/{{Exalted}}'' do this. The standout would be the Subsidiary Personality Implant expansion of Mind-Ripping Probe, which explicitly mentions setting a trigger condition for the hidden self to come out to play.
* The TabletopGame/OldWorldOfDarkness allows plenty of this. ''TabletopGame/VampireTheMasquerade'' and ''TabletopGame/MageTheAscension'' give players access to Dominate and the Mind sphere, respectively, while World Of Darkness: Sorcerer provides [[PsychicPowers Psychic]] (and Hedge Magic and Technomagic) Hypnosis. All of those can be used to create a Manchurian Agent with deep programming. Project Twilight - a sourcebook for anti-supernatural government agents - even makes "Manchurian Candidate" a flaw that can be taken by players.
* One of various character options that be taken on ''TabletopGame/DarkHeresy'' is that of an Agent of the Inquisition that has some of his knowledge locked away (meaning that the player must take some of his character creation points and use them to buy skills and abilities that will be locked) up until the moment he hears a TriggerPhrase. This is one of various measures the Inquisition takes with agents that will be constantly exposed to Chaos or doing dirty (well, dirt''ier'') jobs for it.

[[folder:Video Games]]
* In ''VideoGame/{{BioShock|1}}'', [[spoiler:the main character]] would obey any command he heard that was accompanied by the phrase [[spoiler:"would you kindly."]] Slightly different than most, in that it didn't put him into any kind of trance, it just made him decide that's what must be done. The details on how exactly it works are somewhat lost, as [[spoiler:the main character is a silent protagonist. And since the commands are mission objectives, you have to do them.]] According to Dr. Yi Suchong's "Mind Control Antidote" audio diary, they did use some Plasmids in order for the agent to susceptible to the code phrase, as shown in the "Mind Control Test" audio diary.
* Kilrathi defector "[[ShoutOut Hobbes]]" was revealed as one of these in ''VideoGame/WingCommander 3: Heart of the Tiger'', with the trigger phrase... "[[TitleDrop Heart of the Tiger]]".
* [[spoiler:Luke]] in ''VideoGame/TalesOfTheAbyss'', who was programmed to [[spoiler:unleash a [[WeaponOfMassDestruction hyperresonnance]]]] when he heard the trigger phrase.
* [[spoiler:Boyd, aka "The Milkman"]] in ''VideoGame/{{Psychonauts}}'' apparently had some sort of subliminal trigger implanted in his already fragmented mind by the BigBad. When [[spoiler:Raz accidentally]] released that trigger while exploring his mind, he followed those implanted orders to destroy the asylum and cover up anything that went on there. [[spoiler:However, it takes him quite a long time to finally do it, because the final passcode hadn't been given. Fred says it completely by coincidence as he leaves the asylum]].
** Notably, [[spoiler:Boyd]]'s mind was aware of the implanted personality but not ''what'' exactly it was. He became obsessed with finding out what [[spoiler:the Milkman]] was, which led to his brain creating [[TheMenInBlack government-inspired]] mental constructs called G-Men, whose entire purpose was investigating and eliminating the aforementioned implanted personality, [[spoiler:the Milkman]].
* [[spoiler:Alex Mason]] in ''VideoGame/CallOfDutyBlackOps'' is programmed to [[spoiler:[[WhoShotJFK kill President Kennedy]].]] It's not outright stated whether this succeeded or not, but it's heavily implied.
-->[[spoiler:'''Mason:''' You tried to make me kill my own President!]]\\
[[spoiler:'''Dragovitch:''' ''(laughs) Tried?'']]
** It's also revealed that [[spoiler:Viktor Reznov managed to add onto that programming, sending him after the men responsible for the initial brainwashing.]] This bit comes up again in ''VideoGame/CallOfDutyBlackOps2'', where [[spoiler:one of Reznov's targets, Kravchenko, is revealed to have survived – when he shows up, one of the plot-changing decisions you get to make is whether to resist the brainwashing and let him talk, or give in and shoot him.]]
* In an overheard conversation in ''VideoGame/AssassinsCreedRevelations'', the [[UsefulNotes/TheKnightsTemplar Templars]] have in the past used brainwashed spies against the Assassins. Shaun Hastings suspects that [[spoiler:Desmond may be one after he killed Lucy while under the control of a Piece of Eden]], but there are hints that [[spoiler:Lucy herself could have been one.]]
** ''VideoGame/AssassinsCreedIII'' reveals that [[spoiler:Lucy was a willing traitor]] while [[spoiler:Daniel Cross was turned into this trope by the Animus]].
* A variation is featured in Chapter 2 of the Imperial Agent storyline in ''VideoGame/StarWarsTheOldRepublic''. [[spoiler:The Agent is programmed to carry out certain orders given after the command word is used and, while they still control their own thoughts and remember their actions, they are unable to disobey. The Agent doesn't realise they have undergone the procedure until the leader of the SIS cell they're infiltrating [[OhCrap forces them to obey him]]. The Agent also starts [[DisneyAcidSequence going insane]] as a side-effect.]]
** The other use of this in-game is the Children of the Emperor, crossing both the Consular and Knight arcs. Force-Sensitive infants and children throughout the galaxy are found by the Emperor's agents and brought to him. The Emperor then uses a Sith ritual to establish a PsychicLink with them, seeding them across the galaxy. At any time, he can activate that link and use them as vessels for his will and consciousness. The "children" are not usually aware of their status until the emperor has need of them, so they live ordinary lives, many as loyal Republic citizens, until the trigger causes them to betray their former friends and allies while exhibiting the usual [[DrunkOnTheDarkSide Sith degree of sanity]]. With the Knight, [[spoiler:Kira Carsen's parents surrendered her willingly,]] and the Emperor possesses her to try and kill the [[TheChosenOne Knight]] in Act One, when they're still too weak to face him directly. Consulars will have their hands full with the rest of the "siblings," who range from diplomats and low-ranking Sith, to common Republic soldiers and even [[spoiler:Master Syo Bakarn, a senior member of the Jedi Council]]!
* In ''VideoGame/TheLegendOfHeroesTrailsInTheSky'', the [[spoiler:Male protagonist, Joshua Bright]] is revealed to be a Manchurian agent for [[spoiler:The Ouroboros]], giving [[spoiler:Cassius Bright's]] information to them while everyone else are asleep.
* The villain in ''Danse Macabre 5: Lethal Letters'' uses hypnosis to turn people into these, the usual trigger being a special red envelope.
* In ''{{VideoGame/Overwatch}}'' this happened to Amélie Lacroix, who was kidnapped by the Talon terrorist organization, reprogrammed into an assassin and then "found" by Overwatch agents and returned to her husband Gerard apparently none the worse for the wear. Two weeks later her programming was activated and she killed Gerard [[SlainInTheirSleep in his sleep]] before returning to Talon and becoming the assassin Widowmaker.

[[folder:Visual Novel]]
* In ''VisualNovel/FateStayNight'', asking [[spoiler:Issei too much about Caster will trigger a bad end.]]
* In ''[[VisualNovel/{{Sunrider}} Sunrider Liberation Day]],'' [[spoiler:Chigara]] is revealed to be a Prototype spy sent to keep tabs on (and in one case, [[HoneyTrap seduce]]) certain members of the Sunrider’s crew. Unlike most examples, she doesn’t require a code phrase since the other Prototypes can take control of her at any time through their shared HiveMind. [[spoiler:She’s able to break free of their control, but not before the villains use her to massacre the delegates attending a peace conference.]]

* Oasis from ''Webcomic/SluggyFreelance'', when she sees Hereti-Corp's logo "Override B-1" is activated and she murders every H-C employee in sight.
* Unlike the common zombie-like revenants in ''Webcomic/GirlGenius'', the revenants from Sturmhalten appear exactly like normal people (well, as normal as anyone in a Creator/PhilFoglio comic) until their controller issues them orders, which they carry out against their will. Interestingly, some are capable of freedom within those constraints. (Such as killing a friend so he won't suffer a Fate Worse than Death.)
** Recently, [[DefectorFromDecadence Tarvek]] stated that the zombie revenants are actually only, "A statistical extreme," and that the sleeper agent revenants are actually far more common. It's just that, since the zombie revenants are far more obvious, they managed to divert attention from the real things.
* Gabriel (of ''Webcomic/PennyArcade'' fame) is responsible for the murder of the president of the U.S.A in one comic after presumably having the instruction planted in him after going to a psychotherapist (or something).
* [[spoiler:Mace Windu]] in ''Webcomic/DarthsAndDroids''.
* ''Webcomic/TheOrderOfTheStick'': The Monster in the Darkness has [[spoiler:"eat Redcloak (and spit out his [[SoulJar holy symbol]])" linked to the trigger "Redcloak betrays Xykon".]]
* Emily the SixthRangerTraitor from ''Webcomic/OurLittleAdventure'' [[spoiler:shed her [[MeatPuppet human shell]] and turned into a HumanoidAbomination under Angelo's command when she touched the first Magicant Piece.]]

[[folder:Web Original]]
* In the Literature/WhateleyUniverse, Team Kimba have worked out that Solange has created a Manchurian Agent among their friends. They ''still'' don't know who it is, but they're sure the agent has planted a blackmail note for Solange, and put a tracker in Fey's luggage.
* Travis Crabtree of ''WebVideo/EightiesDan'' was revealed to be one in WebVideo/TheCinemaSnob's review of ''The Legend Of Boggy Creek'': the song which his name comes from sends him into a hypnotic state which causes him to kill the Cinema Bum with a golf club.
-->'''Snob:''' Now ''there's'' something you don't see every day.
* ''Podcast/WelcomeToNightVale'': After Cecil is bought by parties unknown at the secret police's auction he starts blacking out when mayor Dana Cardinal is in danger (fairly often) and saving her with no memory of it happening. And in "Briny Depths" it turns out that [[spoiler:everyone in Night Vale]] is a Manchurian Agent of the World Government with the TriggerPhrase "Briny Depths".

[[folder:Western Animation]]
* ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' in "My Big Fat Spy Wedding", where Jet Fusion is hypnotized to kill anyone who says "I have the Ring". The catch? Jimmy is the Best Man in the wedding of Jet Fusion and Beautiful Gorgeous. [[spoiler:Sheen and Carl discover the trick and crash into the wedding to tell Jimmy, Jimmy then orders everybody in the church to say "I have the Ring" and Libby makes up a song which its lyrics are "I have the Ring, yes I have the Ring, I have the Ring right here". Cue to a whole musical number which included DNA Production's Founders Keith Alcorn and John A. Davis dancing in the Church.]] [[SugarWiki/FunnyMoments Moment of Funny]]? I think so.
* ''WesternAnimation/AllHailKingJulien'' episode "The Panchurian Candidate" reveals that the previous king had trained a team of sleeper agents that he can deploy to take care of various threats to his crown, and that Pancho is the only one of those left.
* Haley in an episode of ''WesternAnimation/AmericanDad''. To prevent accidental activation, the trigger phrase was purposely chosen to be something nobody would ever say normally: "I'm getting fed up with this orgasm!"
** Another episode had Steve react to a trigger that compelled him to assassinate a certain government official, as a throwaway gag.
* The brainwashing done by the Dai Li in ''WesternAnimation/AvatarTheLastAirbender'' is [[TriggerPhrase activated]] by saying "(name), the Earth King has invited you to Lake Laogai," to which they respond by gaining MindControlEyes and saying "I am honored to accept his invitation."
* Mayor Adam West of ''WesternAnimation/FamilyGuy''. Like the ''American Dad'' example above, the trigger phrase was purposely chosen to be something that has no chance of ever being said in normal conversation: "Gosh, that Italian family at the next table sure is quiet." Also, [[spoiler:Meg is revealed to be a deep-cover agent as well, luckily she is ignored as even the Russians treat her as a ButtMonkey.]]
** Bonus points for doing this to a character whose [[spoiler:[[Creator/MilaKunis voice actress]] is fluent in Russian]].
* ''WesternAnimation/InspectorGadget'' did this once, with a game show that hypnotized its contestants (including the titular character) into reacting to the phrase "Going my way?" Turns out it did make him go their way...
* Using this, Sideshow Bob turned Bart Simpson into a LaserGuidedTykeBomb in one episode of ''WesternAnimation/TheSimpsons''.
-->'''Bart:''' [[CreepyMonotone Time to blow up the clown]].\\
'''Homer:''' Go. Blow.
* Luna Fatale in the animated series of ''ComicBook/SpirouAndFantasio''.
* ''WesternAnimation/StarWarsTheCloneWars'': In the Lost Missions, [[spoiler:the Clone Troopers]] are revealed to be this. [[spoiler:Seeing how we've discovered that their obedience conditioning doesn't make them mindless and have spent the entire series with them arguing that ClonesArePeopleToo, the chip in their head that enforces total obedience is probably the only way to explain how they all turned on the Jedi in Order 66.]]
* In the third SeasonFinale of ''WesternAnimation/TeenTitans'', Brother Blood brainwashes the members of Titans East as Manchurian Agents after his initial assault fails, or rather, ''appears'' to.
* In ''WesternAnimation/YoungJustice'', the heroes discover that there may be a [[TheMole Mole]] on the Team. One possibility they float is ComicBook/{{Superboy}} -- he's a clone created by Cadmus and "raised" by telepathic mutants, so what if he was working for the villains without even knowing it? Ultimately, we learn that [[spoiler:''Roy'' is actually a clone and the real Manchurian Agent]].

[[folder:Real Life]]
* This was one of many forms of mind control researched by the CIA's Project MKULTRA and, out of all the things they tried, seems to have been the ''least'' workable (and for one of America's many insane UsefulNotes/ColdWar super-science pipe dreams that is ''really'' saying something). [[ParanoiaFuel At least that's the official story]]...