History TheMole / AnimeAndManga

** [[spoiler:Eren Kruger]] is also a mole: he infiltrated the military by faking his identity and then leaked information to [[LaResistance the underground resistance movement]] [[spoiler:Grisha Yeager]] was a part of. Another mole in the series could arguably be [[spoiler:Zeke, Grisha's son]], who turned his parents in for being part of said resistance, despite their insistence that he's their only hope at [[spoiler:restoring the Eldian empire to its former glory]]. ''Attack On Titan'' likes this trope a lot.

** And in ''ShinMazingerZero'' Dr. Hell created a mole believing she would work for him, but in reality she was a ReverseMole, always on the heroes' side, and was only biding her time before defecting the first chance she got: [[spoiler:Minerva-X]].

* You Takami spies on Ganta in ''DeadmanWonderland'' in exchange for [[spoiler:the over 90 million "cast points" (DW money) he saved up to buy his sister's freedom]]. Ironically, not only does [[spoiler:Ganta figures out You's just using him and doesn't care]] but [[spoiler:his sister really ''does'' deserve to be imprisoned]].

* Sideways from ''TransformersArmada'' is something of a double mole. First, he's pretending to be a goodie, then 'reveals' that he's a baddie, spends some time messing with the other baddies' heads, then later reveals that he's a different sort of baddie.

* In ''TenchiMuyo: GXP'', The Mole is [[spoiler: Erma]]. A double reveal, in that the identity of the mole is given at the beginning of the episode, but the reason why is only at the climax. [[spoiler: Ryoko Balta is a shape-shifter. Erma was, in fact, an identity of hers.]] Since this is a Tenchi series, a Heel Face Turn and joining the harem happens quickly.

* ''Manga/SoulEater'' had a mole murder Buttatake Joe, and they made a bit of a whodunnit out of it. It's set up to make us think that [[MadScientist Doctor Stein]] had done it, but the several GenreSavvy characters, decided to have him investigate. [[spoiler: He finds Justin Law, the youngest and most innocent-looking of the death scythes, is actually working for an AxCrazy human collector...and isn't that sane himself.]]

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* [[spoiler:Rob Lucci, Kaku, Kalifa and Blueno]] from ''OnePiece''. Yes, those are all from one story arc, and most are infiltrating one group.

* In VinlandSaga Gunir is a mole. One of the characters states he doesn't trust him before Gunir even has a chance to leak information, so it's not a huge surprise when it's revealed.

* In ''RODTheTV'' it is eventually revealed that [[spoiler: Nenene's agent Lee Linho]] actually works for Dokusensha. This was a devastatingly effective deception, as he wasn't pretending to be a good guy; he was pretending to be completely uninvolved.

* [[spoiler: Deep Snow]] in ''RaveMaster''.

* Sara in ''StrainStrategicArmoredInfantry'' is always expected to be The Mole, especially when she swoops in to save the day in episode 4 and ''especially'' when her [[LukeIAmYourFather relationship to Ralph]] is revealed; no wonder she tried to cover it up with a new identity (but that just made it worse).

* Sara in ''SoukouNoStrain'' is always expected to be The Mole, especially when she swoops in to save the day in episode 4 and ''especially'' when her [[LukeIAmYourFather relationship to Ralph]] is revealed; no wonder she tried to cover it up with a new identity (but that just made it worse).

* The biggest surprise of ''{{Trigun}}'' was [[spoiler: Wolfwood]]'s identity as a mole, but he manages to turn this into a HeelFaceTurn through Vash's influence.

* In the ''{{Hellsing}}'' manga and (eventually) OVA [[spoiler: Walter C. Dorneaz betrays the Hellsing organization. This could be argued as a FaceHeelTurn but it is hinted as a long-plotted betrayal.]]
* Subverted in ''TanteiGakuenQ''. Everyone '''thinks''' [[TheStoic Tatsumi Hongou]] is the mole from Meiousei -aka the Pluto Organization- and that he arranged Morihiko Dan's kidnapping, but Tatsumi himself confronts the Q section people and calmly says he knows they don't trust him, that he's ''not'' the mole they're searching for, and that they should team up and help him find said mole. [[spoiler: It turns out that the mole is [[TeamMom Shino Katagiri]]. Or better said, a Meiousei agent impersonating her, as the real Shino had been kidnapped ''before'' Morihiko Dan himself was. She's later found alive and rescued.]]

* The Mole in ''{{Mahoromatic}}: Something More Beautiful'' is one the cast sees coming, but it doesn't do them much good. [[spoiler: At least, she does a HeelFaceTurn when it counted.]]

* [[spoiler:Syaoran]] from ''TsubasaReservoirChronicle'' is more of a FaceHeelTurn than this, because of the radical personality shift. A more straight example would be [[spoiler:Fai.]]
* In ''PokemonSpecial'', it turns out that [[spoiler:Sird]] was a mole sent by [[spoiler:Team Galactic]] to infiltrate Team Rocket and learn more about space-themed Pokemon.

* In ''{{Gravion}}'', Mizuki Tachibana, a seemingly normal (except [[{{Gainaxing}} her breasts]]) MsFanservice, turns out to be a spy for TheFederation, feeding information of the titular mecha to create their own (since they distrusted the good guys despite having the same goal of protecting Earth). She is rewarded with a life of luxury, but quickly grew miserable and bored with it, prompting her to return to the good guys.

* ''InnocentVenus''. [[spoiler: Jin]]. Turns out [[spoiler: he]] hated [[spoiler: his]] best buddy and former squadmate all along.

* In the BlueExorcist manga, Mephisto reveals that there is a spy in the Esquire class... [[spoiler: but nobody expected it to be Shima Renzou.]]

* A particularly [[TearJerker heartbreaking]] [[TheReveal revelation]] of a mole occurs in episode 17 of ''{{Mai-Otome}}''...
** ...and likewise in episode 8 of ''{{Simoun}}''.
* Miyu, and later Alyssa from ''{{Mai-HiME}}''. The former is a RobotGirl equipped and programmed to destroy [=CHILD=]s with one strike, and the latter is an ArtificialHuman and a "fake [=HiME=]" designed to [[LaserGuidedTykebomb find and subdue the real ones]].

* Being a series about ninja organizations, ''Manga/{{Naruto}}'' has several examples. [[spoiler: Medical ninja Kabuto]] is initially a mole in the Leaf Village for Orochimaru, and later [[spoiler: a fake mole for the Akatsuki- pretending to inform to them on the Sound Village, but really remaining loyal to Orochimaru.]] Sai was initially a mole in Squad 7 for Danzo, but he switched loyalties almost as soon as he was found out. In one of the weirdest examples, Akatsuki leader [[spoiler: Madara Uchiha]] is a mole [[spoiler: within his own organization, as the [[HarmlessVillain Harmless]] AntiVillain Tobi]].

* In the BlueExorcist manga, it was revealed that that there was a mole in the team... [[spoiler: but nobody expected it to be Shima Renzou.]]

* Asakura Ryoko in ''SuzumiyaHaruhi''. [[spoiler: Twice]].

* [[spoiler: Aizen]] from ''Manga/{{Bleach}}'' is an excellent example, although he's more of a BigBad himself at the same time.
** [[spoiler: Gin]] is an even better example, as he is a mole twice over. [[spoiler: He worked covertly for Aizen while both still posed as Gotei 13 captains, but near the end of the final fight against Aizen, he reveals that he had been working for Aizen all along simply for a chance at revenge against Aizen.]]

* Becomes a source of ParanoiaFuel in ''Manga/AttackOnTitan'', thanks to the revelation that [[spoiler: sentient Titans are in fact "humans in Titan flesh".]] However, the eventual discoveries that [[spoiler: Annie, Bertolt, and TeamDad Reiner are spies sent to infiltrate the human ranks]] is both shocking and a punch to the gut for the characters ''and'' the audience. Even worse, [[spoiler: Bertolt and Reiner are the Colossal Titan and the Armored Titan, respectively... and therefore responsible for a good percent of the death in the series thus far]].

* Becomes a source of ParanoiaFuel in ''Manga/AttackOnTitan'', thanks to the revelation that [[spoiler: sentient Titans are in fact "humans in Titan flesh".]] However, the eventual discoveries that [[spoiler: Annie, Bertholdt, and TeamDad Reiner are spies sent to infiltrate the human ranks]] is both shocking and a punch to the gut for the characters ''and'' the audience. Even worse, [[spoiler: Bertholdt and Reiner are the Colossal Titan and the Armored Titan, respectively.....and therefore responsible for a good percent of the death in the series thus far]].

* Becomes a source of ParanoiaFuel in ''ShingekiNoKyojin'', thanks to the revelation that [[spoiler: sentient Titans are in fact "humans in Titan flesh".]] However, the eventual discoveries that [[spoiler: Annie, Bertholdt, and TeamDad Reiner are spies sent to infiltrate the human ranks]] is both shocking and a punch to the gut for the characters ''and'' the audience. Even worse, [[spoiler: Bertholdt and Reiner are the Colossal Titan and the Armored Titan, respectively.....and therefore responsible for a good percent of the death in the series thus far]].

* [[spoiler:Runessa]] in ''[[AudioAdaptation StrikerS Sound Stage X]]'' of ''MagicalGirlLyricalNanoha''. A [[spoiler:DragonAscendant]] who had become a much trusted member of [[TheFederation the Time-Space Administration Bureau]].