[[quoteright:234:[[VisualPun http://static.tvtropes.org/pmwiki/pub/images/molehills_in_padock2_3738.jpg]]]]
[[caption-width-right:234:[- The [[FlockOfWolves Headquarters]] on ''[[Series/TwentyFour 24]]''-] ]]

->''"You were working for her, Seska was working for them -- was there anyone on that ship working for me?"''
-->-- '''Chakotay''', ''Series/StarTrekVoyager''

%% One quote is sufficient. Please place additional entries on the quotes tab.

A bad guy who pretends to be a good guy. The audience assumes they are a good guy until the sudden revelation. If well-done, catches the audience out. If especially well-done, it can be the climax of a WhamEpisode.

There will frequently be a showdown with the Mole, who then may return to the series from time to time when the writers want to bump up [[RatingsStunt ratings]]. Alternatively, if the Mole doesn't know he's been identified, the heroes can [[FeedTheMole feed him false information]]. Their cover story usually is a ConvenientlyUnverifiableCoverStory.

A Mole who happens to be the ''only'' person the hero can turn to for expert assistance is the TreacherousAdvisor. If the mole is a SixthRanger for TheTeam then they're a SixthRangerTraitor.

If one of the heroes had been in a romantic relationship with the Mole before TheReveal, he or she may ask "WasItAllALie". Particularly heartless Moles may reveal that yes, IWasOnlyPretendingToLikeYou, while others may have indeed developed feelings for the person being betrayed and may wind up BecomingTheMask.

A really successful example can even become the MoleInCharge.

UnholyHolySword is this trope applied to an artifact, weapon, or MacGuffin. TenLittleMurderVictims is an example of a plot concerning the hunt for The Mole. AWolfInSheepsClothing is The Mole via false identity. FlockOfWolves is a group where ''everyone'' is The Mole.

If The Mole is also a fake HeelFaceTurn, they're a HeelFaceMole. If someone ''isn't'' The Mole, but it looks like he is, he's a RedHerringMole.

ReverseMole is [[ExactlyWhatItSaysOnTheTin the reverse]], a good guy who's been pretending to be a bad guy. (See also TheInfiltration for the short-term version.)

Compare BigBadFriend (an actual friend who is nevertheless a villain), {{Turncoat}} and LesCollaborateurs. Contrast FriendlyEnemy (a known villain who is nevertheless a friend) and FaceHeelTurn (where the character ''was'' good, but changed sides).

Not to be confused with the [[Series/TheMole Reality TV series of the same name]] (though it's all about this trope), The Mole from ''Series/{{Thunderbirds}}'' (which is a [[TunnelKing digging machine]]), the ComicStrip/DickTracy villain, MoleMen, MoleMiner, 6.02 x 10[[superscript:23]] [[note]]a unit of measure known in chemistry as a "mole"[[/note]], or the Mexican chocolate sauce.

Be alert that '''spoilers may follow''', due to the secretive nature of this character.
----
!!Examples
[[index]]
* TheMole/AnimeAndManga
* TheMole/{{Literature}}
* TheMole/LiveActionTV
* TheMole/VideoGames
* TheMole/WesternAnimation
[[/index]]

[[foldercontrol]]

[[folder:Comic Books]]
* Frank Wolff, Calculus's assistant in ''[[{{Tintin}} Destination Moon/Explorers on the Moon]]''.
* The comic series ''{{Fables}}'' has had several--Rodney Greenfield (who pretends to be a Mundy, not a Fable, and who the reader knows is a spy from the end of his first appearance), [[spoiler: the ironically named Trusty John (he IS trusty--just to his original master, who has joined the Adversary), Red Riding Hood (actually two different shapeshifting witches--the second being Baba Yaga), Ichabod Crane, and Bluebeard--although the one that he is secretly helping is Goldilocks, not the Adversary]].
* Mondo from ''GenerationX'' was revealed to be a traitor planted on the team to help destroy it from the inside. He reveals his teammates' weaknesses to his master, longtime X-Men foe Black Tom Cassidy.
* ''IronMan'''s weakness for the ladies has led more than one of his enemies to employ a FemmeFatale Mole. In particular, Obadiah Stane used Indries Moomji this way with devastating effect. (She was the "Queen" among his [[TheChessmaster chess-themed agents]].)
* Part of the premise of DC's 1988 CrisisCrossover ''Comicbook/{{Millennium}}'' was that at least one character in every book was revealed to be secretly an agent of an evil alien robot cult. Since this was imposed from above on the hapless writers, the results were...variable.
** 20 years later, Marvel pulled off nearly the same thing in ''SecretInvasion'', rather more successfully. For one, there was much better coordination between writers and the editorial staff; for another, they didn't automatically mandate "one character per book", which kept the readers guessing.
* ''Comicbook/{{Runaways}}'' had a particularly shocking Mole in its first arc.
-->[[spoiler:'''Alex''']]: [[WhamLine "Aren't you proud?"]]
* ''[[Comicbook/ArchieComicsSonicTheHedgehog Sonic the Hedgehog]]'': A recent retcon and a bit of ArcWelding have made it so that [[spoiler: Geoffrey St. John]]'s recent apparent FaceHeelTurn is actually this, stating that he's actually been working for Ixis Naugus since before either of them were even introduced.
* Several are used in the ''SquadronSupreme'' limited series as part of a plot to stop the heroes' efforts to turn the planet into a police state.
* The [[PerfectDark Perfect Dark: Janus Tears]] comic book revolves about Joanna Dark haunting a mole in the Carrington Institute.
* During the {{New 52}} run on ''Comicbook/SuicideSquad'', it eventually turns out that [[spoiler: Black Spider]] is an agent of [[{{Cult}} Basilisk]], who allowed himself to be arrested and recruited into the Squad so that he could assassinate Waller.
* The most important mole in comic book history is probably Terra of ''ComicBook/TeenTitans'' fame. The arc back in the Eighties was so famous it is still known as "ComicBook/TheJudasContract" arc. She is introduced when she apparently rescues the Titans and crushes Slade. It turns out she is working for Slade (and in fact his girlfriend) much later when she leads the Titans into a deathtrap.
** According to ''Knight & Squire'' by Creator/PaulCornell, DC heroes now refer to this sort of thing as "a Judas contract".
* In one week of ''ComicBook/{{Wildlife}}'' strips, Hanley had Soviet moles in his garden. We meet one of them up close.
-->'''Mole''': [My name is] Avogadro. [[IncrediblyLamePun Here's my number]].
* In Golden Age ''Franchise/WonderWoman'' stories, U.S. Army Intelligence often seems to be the service from which CTU inherited its vetting procedures. Steve Trevor goes through a number of secretaries, almost all of whom turn out to be moles working for the bad guys. (Diana Prince didn't work for Trevor, but for his boss, Colonel Darnell. Though come to think of it, ''Diana herself'' was a mole, albeit for America's friendly ally, Paradise Island.)
* Storm of ''ComicBook/XMenForever'' was revealed to be a spy for an evil shadow group.
* In ''YTheLastMan'', Australian naval officer and spy Rose Copen forms a lesbian relationship with Dr Allison Mann so she can accompany her and thus keep tabs on the last man on Earth [[spoiler:only to [[BecomingTheMask fall in love with Allison for real]]]].
* The first cycle of ''ComicBook/ArthurBenton'' revolves around a character who was sent as a spy in Germany in 1929, and had to play the perfect Nazi for the following 15 years. It's hard to classify said character as good or bad, and to tell if he is either The Mole or a ReverseMole.
[[/folder]]

[[folder:Fan Fic]]
* In ''FanFic/KiraIsJustice'', Shadow is one in the SIS, while [[spoiler: Mr. Williams]] is partially an unwilling one in the Task Force (though this hadn't been put in play-yet.)
* ''FanFic/{{Loyalty}}'' is a unique case that features a mole as it's main protagonist. But Sakura is anything but willing.
* In ''Fanfic/OnceMoreWithFeeling'', [[spoiler:Shinji]] is an unusual mix between mole and ReverseMole. on one hand, he is feeding intelligence to the Japanese Government about what NERV and SEELE are really up to. On the other hand, given what they ARE up to, and what he is trying saving all humankind -including those he cares for-, you would be hard-pressed to tell he is the bad guy here (and if they knew his motives, it's highly doubtful any character but Gendo and SEELE called him one). He is a good guy pretends to be a bad guy pretending to be a good guy.
* In ''FanFic/UtopiaUnmade'', Nisser is one of the soldiers that gains Cure Marine's respect while she's organizing the defense of Sandstorm. Turns out he's actually Cobraja, one of the commanders of the Desert Apostles, and he manages to open Sandstorm's gates to let the Apostles in.
* In ''FanFic/MegaManRecut'', "The Mega Man in the Moon" reveals that Senator King is this.
* In ''FanFic/MegaManDefenderOfTheHumanRace'', Metal Man is this in episode 9.
** The police and FBI suspect the Conduit may have planted a mole within their ranks. The mole turns out to be [[spoiler:Captain Tallarico, AKA Miss T]].
* In ''Fanfic/TheStudentPrince'', [[spoiler:Val, the bodyguard, is getting paid to kill Arthur]]. The surprise may be spoiled for readers who realise that [[spoiler:"Val" is short for [[Recap/MerlinS01E02Valiant Valiant]]]].
[[/folder]]

[[folder:Films -- Animated]]
* ''Disney/{{Frozen}}'': [[spoiler:Prince Hans]] reveals himself to be The Mole [[spoiler:trying to sabotage Princess Anna and her mission.]]
* ''WesternAnimation/HeavyMetal2000'': [[spoiler:Odin]] reveals himself as The Mole during the climactic battle, just after the BigBad has been killed by the heroine.
* ''Film/MonstersInc'': [[spoiler:Randall Boggs and Mr. Waternoose]] are in charge of [[spoiler:kidnapping children]] and [[spoiler:made up the entire ''"poisonous human"'' superstition]] for the sake of keeping the company up and running to power Monstropolis. The former is only shown as cocky and cruel before TheReveal on how grossly '''''vile''''' he really is, thus less surprising than the latter Mole.
* ''WesternAnimation/ToyStory2'': [[spoiler:The Prospector Stinky Pete]] sought to aid Al's Toy Barn in making profit, preventing Sheriff Woody from returning home. This Mole changes his ways at the very end.
* In ''WesternAnimation/ToyStory3'', [[spoiler:Lotso]] is a similar Mole, pushed UpToEleven of the preceding, given that he puts on even '''more''' lovable airs before TheReveal that he's actually far '''more''' oppressive. He may have changed his ways at the end as did the preceding, though it is in no way clarified whether he changed at all.
[[/folder]]

[[folder:Films -- Live-Action]]
* ''Film/AustinPowers'': '''"MOLEY-MOLEY-MOLEY!!!"''' Actually a ReverseMole, except that [[ExactlyWhatItSaysOnTheTin he actually has a mole]]. (See also: ColorCodedForYourConvenience)
* ''Film/{{Braveheart}}'' played with this trope and its variants; when two characters join Wallace's crew, one appears to be the mole but it turns out to be the other one and the first one [[StabTheScorpion saves the hero]].
* There are two in ''Film/CarlitosWay''. One is revealed right away and is working for the FBI, the other is not revealed until the ending.
* ''Film/DogSoldiers'' had a mole, who didn't '''''intend''''' to be the mole originally. The one woman who rescued the soldiers from the Werewolves and tries to help them escape from the surrounded country house is revealed to be a member of the Werewolf family herself. Apparently, it seemed she thought the soldiers knew about the beasts and had come to rescue her (and perhaps cure her) from the Werewolves. However after every escape plan goes wrong, she reveals herself to be one of them, reveals that she had let the rest of the wolves in the house while they were busy and begins changing into one of them herself.
** She is promptly [[BoomHeadshot shot in the head]] seconds later.
* ''Film/DrNo''. Miss Taro is an agent of Dr. No who works as a secretary in Government House, passing classified information on to him.
* In ''Film/GForce'' [[spoiler: Speckles, the MissionControl Star-nosed Mole [[BackFromTheDead comes back from an unfortunate garbage truck incident]] (he got in an empty soup can and used it to roll it down to the dump) to reveal himself as the one who's actually turning household appliances into killing machines]].
* [[spoiler:Agent 23]] in the 2008 film ''Film/GetSmart''.
* In ''Film/IndianaJonesAndTheLastCrusade'', Dr. Elsa Schneider is revealed to be working with the Nazis about halfway through the film. She pretended to help Indy in order to obtain Henry Sr.'s grail diary, which could confirm the location of the Grail's resting place. Elsa, however, subverts her role when she purposefully gives Donovan the wrong grail, which eliminates him from the picture, allowing Indy to obtain the true grail and heal his father. In the end, this (questionable) redemption is not enough, as she tries to leave with the grail from the temple. In a TakeMyHand moment, she can't keep herself from reaching for the grail below her as she hangs on to Indy above a deep abyss. She ultimately [[DeathByMaterialism loses her life]] when her gloved hand slips away and she falls to her death.
* ''Film/MallCop'': [[spoiler:Paul Blart's trainee Veck Sims]] is the main villain. [[spoiler: The trainee]] is the brainy.
* ''Film/{{Mannequin}}'': Richards (played by James Spader of ''TheBlacklist).'' Yes, a plant for a rival ''department store'' seeking to buy out the one he is infiltrating.
* In the movie adaptation of ''Film/MissionImpossible'', [[spoiler:the team leader Jim Phelps, essentially reversing his portrayal for ''the entire run of the original and second series'', which the movie producers weren't even involved in]].
* Assjuice, very briefly in ''[[Film/{{Neighbors2014}} Neighbors]]''.
* ''Film/NoWayOut'' features a remarkable combination of a mole and a RedHerringMole. The murder of the mistress (Sean Young) to the Secretary of Defense (Gene Hackman) is blamed on a Soviet mole as a RedHerring to divert attention from the real killer (the Secretary himself). The protagonist (Kevin Costner) must race to find evidence of this before they figure out that [[HiredToHuntYourself he's the one being framed]]. The twist is that [[spoiler:although he didn't kill the girl, Costner really ''is'' a Soviet mole]].
* ''Film/ReservoirDogs''. After a heist goes wrong, the main characters become paranoid, with Mr Pink repeatedly claiming there has to be a mole. [[spoiler:We eventually discover it was Mr Orange]].
* [[spoiler: Tex]] in ''Film/RobotJox''.
* The ''Film/RockyAndBullwinkle'' film parodies this trope's ''name''. The villans have a mole in the U.S. government that allows them to get information about what the government is doing. The mole is revealed to be a literal mole that is part of the President's Staff.
* One of the people in ''Film/{{Ronin}}'' is not actually "{{Ronin}}", and is still working for his/her agency. [[spoiler:It's Sam]].
* The movie ''Film/{{Salt}}'' is filled with moles.
* [[spoiler: Becky]] in ''SinCity'' ends up ratting the Old Town girls out to the mob.
* ''Film/{{Stalag 17}}'' involves one of these in a German POW camp during WW2. It turns out to be someone other than who everyone assumes it to be.
* In ''Film/{{The A-Team}}'', [[spoiler: Lynch]].
* ''Film/TheAvengers1998'': [[spoiler:Father]].
* ''TheDeparted'' is the story of a mole in the Massachusetts State Police and a ReverseMole in the Boston Mafia trying to discover each other.
** At one point the the mole is tasked at trying to find the mole in within the State Police, Himself. [[spoiler: he wasn't the only mole; unbeknownst to him until the very end]].
** Which is a remake of ''Film/InfernalAffairs'', where the mole was in the Hong Kong police and the ReverseMole was in the Triads.
* [[spoiler: Anna]] in ''Film/TheGunsOfNavarone''.
* Although the cast spends a large part of ''TheLeagueOfExtraordinaryGentlemen'' thinking that [[spoiler: Skinner]] is The Mole, it turns out to actually be [[spoiler: Dorian Gray]].
* In ''Film/TheHeat'', [[spoiler:Adam, the DEA agent, was Larkin all along]].
* In ''Film/TheThieves'', [[spoiler:Julie]] is planted on the team by the Hong Kong Police to lead them to the reclusive fence Wei Hong.
* [[spoiler:Andy]], in ''Film/{{Shuttle}}'', appears to be one of the passengers held hostage by The Driver, but is actually his conspirator, which comes in handy when the heroes get the upper hand.
* In ''Film/SistersOfDeath'', Mr. Clyburn tells the girls that one of them knew for sure that the hazing ritual that killed his daughter seven years ago was sabotaged, and that that witness was working with him. It was[[spoiler: Sylvia]], who actually pulled the trigger in the ritual
* [[spoiler:Kayla Silverfox]] in ''Film/XMenOriginsWolverine'', for her sister's sake...
* [[spoiler:Fay]] in ''Film/AdoptingTerror'', is feeding information to the biological father who's terrorizing the adoptive family.
[[/folder]]

[[folder:Manhua]]
* Long Wei is informed near the start of ''Manhua/InfinityGame'' that somebody has infected the alternative world with a virus that is causing the game to become more difficult and permanently killing people (originally death in the game meant the player would return unharmed to the real world), so he sets out to find out who it is. [[spoiler:It was D.D., infected by the RPG Society]].
[[/folder]]

[[folder: Newspaper Comics]]
* Parodied in one ''PearlsBeforeSwine'' strip from a story arc about moles.
-->'''Mole 1:''' Gentlemen, we are meeting here because some crocs are trying to eat us. How they got word we were staying at this hotel, I don't know.
-->'''Mole 2''': [[{{Pun}} Perhaps we have a mole]].
* In ''PricklyCity'', Kevin sent Carmen to be a mole in Obama's camp. They sent her to work for Biden. Biden sent her back to Obama to be his mole in Obama's camp.
[[/folder]]

[[folder: Professional Wrestling]]
* Used and subverted in Wrestling/{{CHIKARA}}. One of the ''[[{{Face}} tecnicos]]'' had betrayed the others and gave ''[[{{Heel}} rudo]]'' Wrestling/{{UltraMantis Black}} the counter to Wrestling/MikeQuackenbush's feared submission finisher the CHIKARA Special to pass on to bigger ''rudo'' Wrestling/ChrisHero. [=UltraMantis=] also hypnotized tecnico Tim Donst into joining his stable the Order of the Neo-Solar Temple. Except, Donst was faking the amnesia, and while one of the rudos he discovered that the traitor of the tecnicos was [[spoiler:Shane Storm]]. Donst told Quackenbush, who attacked [[spoiler:Storm]] before he could pull off a full fledged reveal and betrayal.
* [[{{WMG/WWE}} Many believe]] Wrestling/HulkHogan is currently this in Wrestling/{{TNA}}.
** A similar conspiracy theory was suggested when Wrestling/VinceRusso arrived in Wrestling/{{WCW}} from Wrestling/{{WWE}} in October 1999, based on how, in his attempts to turn ''Wrestling/WCWMondayNitro'' into ''[[Wrestling/{{WWERaw}} Raw]]'', he managed to take a product that was already in terrible shape, thanks to roughly a year of Wrestling/KevinNash as head booker, and [[FromBadToWorse made it EVEN WORSE!]].
* In Wrestling/{{WSU}}, Becky Bayless was a mole who pretended to hate Alicia's guts while secretly helping her win and retain the WSU Championship.
[[/folder]]

[[folder:Radio]]
* ''Radio/AdventuresInOdyssey'': The audience was let in fairly early on the fact that Mr. Glossman was a mole, but not on who he was working for.
[[/folder]]

[[folder: Tabletop Games]]
* ''TabletopGame/{{Paranoia}}'' takes this to an extreme; [[FlockOfWolves every single character in the game]] is a traitor working for a different secret society. Some of them (especially Internal Security agents and the Illuminati) infiltrate other secret societies.
** And then there's the Wobblies. The Computer heard rumors and sent a Troubleshooter team to investigate, but they'd died out long ago, so the team reported finding nothing-- and was executed for failing to follow orders. A dozen or so teams later, one team ''[[TakeAThirdOption created]]'' the society so they'd have something to investigate. To this day, [[FlockOfWolves every single member]] is an infiltrator.
* In ''{{TabletopGame/Warhammer 40000}}'', although most Radical Inquisitors are just {{Cowboy Cop}}s who do their jobs in ways the bosses on Holy Terra wouldn't approve of, there are quite a few extremists who, for various reasons, abuse their Inquisitorial authority to do things that undermine the Imperium's security. Some of them are outright trying to overthrow one or more of the Imperium's ruling bodies.
[[/folder]]

[[folder: Theatre]]
* In Theatre/TheGentlemanRanker, [[spoiler:Lieutenant Harford]] is a German agent who has been undercover for a decade as a British officer.
[[/folder]]

[[folder:Webcomics]]
* In ''BobAndGeorge'', [[http://www.bobandgeorge.com/archives/000617c Dr. Wily]], not that it's hard to tell if you try.
* In ''Webcomic/BlueYonder'', [[http://www.blueyondercomic.net/comics/1625491/blue-yonder-chapter-2-page-31/ the villain boasts of having so many as to make fighting him impossible]].
* ''Webcomic/{{Drive}}'': Orla O'Malley is part of La Familia. Nobody in-universe knows this but La Familia.
* Jesse in ''{{Fans}}'' was revealed to be the mole; his real name is Jesspin, and he is loyal to the time-traveling conquer General Maximilianna. Subverted in that Jesse still exists as a secondary personality within Jesspin and is loyal to AEGIS. When Jesspin told "Jesse" that no one would believe that he wasn't a traitor, "Jesse" answered, "That's what will make this fun. [[WhatYouAreInTheDark I do my best work in the dark]]."
* [[spoiler:Wooster, Gil's loyal companion]] in ''Webcomic/GirlGenius'', turns out to be a mole from Britain. Unfortunately for him, the one he was spying on knows. That's why he made sure to keep him close, so he can keep an eye on him.
** A more dangerous Mole was [[spoiler:Rovainen]], when it turns out that he is a revenant.
* ''IrregularWebcomic'', [[http://www.irregularwebcomic.net/2574.html here]]. Although in this case, [[SubvertedTrope it doesn't actually apply to this comic]].
** Also, [[spoiler:Dr. Ginny Smith]].
* In [[http://mortifer.smackjeeves.com Mortifer]], [[spoiler: William Aussek, the newly appointed leader of the local supernatural law enforcement, is revealed to be MagnificentBastard Joey Von Krause in disguise]]. A more straight example would be [[spoiler: Matthew]], who is revealed [[spoiler: Post TimeSkip]] to be informing on Joey to [[spoiler: Vlad Hynner -- Matthew's pissed at Joey for more or less relegating him to desk work, preventing him from venting his PsychoForHire tendencies. Also, it's revealed that Alyce was working for Vlad the whole time as a double agent]].
* In an early ''Webcomic/SluggyFreelance'' arc, [[spoiler:Riff]] is revealed to have been acting as a mole for Hereti-Corp since before the series began, albeit unintentionally.
** And in the "Phoenix Rising" storyline [[spoiler:"Nash Straw" turns out not to be an investigative reporter, but an assassin the Canadian Mafia hired to kill Oasis]].
** [[spoiler:Riff's girlfriend Monica]] is actually a K'Z'K worshipper sent to spy on the main characters by Chilus.
** In the "Research and Development Wars" arc, it is revealed that [[spoiler:Sasha has been a Hereti-Corp spy all along.]]
* Ever since [[spoiler:Sadako]] entered the ''YuMeDream'' storyline, readers were not sure exactly who she was or what her relation to Lia was. When the big DramaBomb hits, it becomes more apparent who [[spoiler:Sadako]] is.
[[/folder]]

[[folder:Web Original]]
* ''KateModern'' season 2 featured two examples of this; first [[spoiler:Terry]] and later [[spoiler:Julia]].
* The ''WebVideo/LG15TheResistance'' finale revealed that [[spoiler:Sarah Genatiempo]] was in the Order all along. Some fans considered this a CrowningMomentOfAwesome, others a mistake of [[LoveItOrHateIt gargantuan proportions]].
* [[spoiler:Dr. Hart]] in ''{{lonelygirl15}}'', who is one of the protagonists for a significant proportion of series 2, before eventually revealing himself to be a villain [[spoiler:(but he switches sides during the season finale, "Bloodlines")]].
** A particularly unusual example happened during the live event seen in "Too Dangerous!", in which a group of fans were invited to meet Daniel and Jonas, in person, in San Francisco, and take part in the storyline. Greg Gallows, a popular BigNameFan of the series, was revealed to be a mole, passing information onto villain Lucy. Gallows went on to appear as an enemy {{mook}} in the following story, "Bloodlines".
** [[spoiler:Sarah]] was revealed to be a mole in "We're Screwed!"
** ''{{lonelygirl15}}'' loves this trope, actually. [[spoiler:Gemma]], anyone? [[spoiler:She]] never actually joins Bree or Daniel, but she helps from a distance. In "Tough Cookie" it's revealed that [[spoiler:she works for the Order and isn't even British.]]
** [[spoiler:Carl Adams]] in "Prom: It's To Die For".
* There's a variation in ''SurvivalOfTheFittest'' version 2, where [[FourIsDeath Big Four]] member Steven Wilson is tasked with scouting Bathurst High School (the other Four were assigned to other schools in the city) to find the best classes to target, and eventually to orchestrate those classes' abductions. They got him in place by forging documents and credentials to establish him as a qualified teacher and administrator, arranged for the previous Bathurst principal to "disappear", and then snuck him in as the new one. He then took over by using his previous military and leadership experience to take care of the administrative details. Ironically, the Bathurst students sealed their own fates by treating him rudely and with no respect, constantly causing trouble, and the two chosen classes were the ones he saw as the worst. Nobody not in the know saw it coming.
** Jodene Zalack in ''SurvivalOfTheFittest'' version three, who joined a group with the intent of infiltrating them and taking them out. She succeeded in killing Khrysta Lawrence and escaping entirely unharmed. She was planning to do the same to another group before it was decimated by [[AxCrazy Wade Wilson]].
* ''WebVideo/YuGiOhTheAbridgedSeries''' Melvin (Yami Marik) was a villain from the get go, but it's taken even further when he turns out to be The Mole ''for the series itself''. [[spoiler: He was hired by the CEO of 4Kids (Noah Kaiba) to cancel the show. [[TheBadGuyWins He succeeded.]]]]
* The ''{{Yogscast}} [[YogscastMinecraftSeries Minecraft Series]]'' has [[spoiler: Lysander, who turns out to be a member of the evil cult of Israphel. And he burned down Mistral City while the heroes were investigating what happened to Old_Peculier's father.]]
** Subverted when it turns out [[spoiler:Lysander was framed and the person who actually burned down Mistral was a pirate named Jock Fireblast.]] Played straight though when [[spoiler:Skylord_Vitali betrays the Skylords and kills them all.]]
* NazetrÓme in ''Series/{{Noob}}''. She's suprized nobody in the Noob guild figured it out given that [[spoiler:her Online Alias is an anagram to that of the Noob guild's resentful former Guild Master]].
[[/folder]]

[[folder:Real Life]]
* Really, any real life ReverseMole is someone's Mole.
* FBI Agent Robert Hanssen, one of the most damaging moles American counter-intelligence has ever had. Sold information to the USSR that resulted in the deaths of many agents and defectors over a two decade period. At one point, Hanssen was tasked in his counter-intelligence work [[DetectiveMole to find the Soviet mole]]. [[HiredToHuntYourself He was looking for himself]]!
** His damage wasn't limited to the intelligence community. Hanssen is thought to have leaked information on the FBI's manhunt for Osama bin Laden to Russian handlers. This information ended up on the black market, and eventually into the hands of bin Laden himself. This leak is thought to have helped facilitate 9/11.
*** Efforts to identify and capture Hanssen were complicated by the fact that he and Aldrich Ames (below), a Russian mole in the CIA, were operating at the same time and in some cases leaked the same information.
* Aldrich Hazen Ames, one of the most notorious double agents in CIA history. Received approximately $4.6 million from the Soviets for selling out several CIA sources and operations to them from the 80s until his capture in 1994. His actions as a Soviet mole were so shocking and poignant that a movie was made about him, ''Aldrich Ames: Traitor Within'', and he's been referenced in several espionage stories since his discovery. Also infamous for beating the regular CIA polygraph tests by being very calm.
* Several of the Cambridge Five in the UK could be classed as this, but the most infamous would probably be Kim Philby who, as a long-term spy for the Soviet Union within MI6, at one point became head of Section IX: tasked with counter-espionage against the USSR; at another point he was MI6's liason with the CIA.
* [[http://en.wikipedia.org/wiki/Mark_Zborowski Mark Zborowski]], yet another Soviet mole. He wormed his way into Trotsky's circle and possibly assisted in the death of Trotsky's son.
* Anna Chapman, the gorgeous hot chick, turned out to be a spy for the Russians. Along with [[MenAreGenericWomenAreSpecial nine other nameless guys]], by the way, whom the media didn't care about.
* When the British anti-capitalistic left-wing organisation [[http://en.wikipedia.org/wiki/London_Greenpeace Lordon Greenpeace]] was involved the so-called "[[http://en.wikipedia.org/wiki/McLibel_case McLibel case]]" against McDonalds, it was estimated that up to one ''half'' of the members of the organisation was moles both planted by the British police and [=McDonald=]'s itself.
* The Southampton Plot of 1415 was a conspiracy to replace King Henry V with Edmund Mortimer, 5th Earl of March. The ringleaders were betrayed to Henry V (who had them promptly arrested and executed) by none other than ... Edmund Mortimer, 5th Earl of March.
[[/folder]]

----