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[[quoteright:321:[[Webcomic/ChuckleADuck http://static.tvtropes.org/pmwiki/pub/images/judas_6447.png]]]]
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%% http://chuckleaduck.com/comic/under-cover/
%% Original by Chuckle-A-Duck: http://chuckleaduck.com/
%% Used with permission.

->''"Now, I don't want to give anything away here, but '''one''' of these guys is going to be the villain. Can you guess who?"''
-->-- '''WebVideo/TheNostalgiaCritic''', ''WesternAnimation/QuestForCamelot'' review

A FaceHeelTurn that was obviously coming.

This character is one of the good guys, but he has a certain air about him. You just know that he'll eventually betray the group in some way or another, even though the writer has shown no evidence that he plans to actually ''do'' evil (rather than just ''look'' evil). So why suspect him? He expresses traits that seem ObviouslyEvil; perhaps he speaks in a CreepyMonotone and wears an OminousOperaCape, or his name is "[[NamesToRunAwayFromReallyFast Morded McTraitor]]", or he just looks like DastardlyWhiplash. When he finally turns evil, you say, "IKnewIt!"

This trope is an {{Audience Reaction|s}}, because the other protagonists suspect nothing. This trope can also happen in universe if a GenreSavvy character predicts a betrayal, but doesn't warn the good guys. This trope can become TheUntwist, if the audience thinks (by mistake) that the character can't turn evil, because it would be too obvious. It can overlap with NarrowedItDownToTheGuyIRecognize, if one protagonist's actor usually plays evil characters.

''Do not add an example until the work reveals that the character turns evil.'' The audience might see an Obvious Judas where the author did not intend one. It would be stupid to list someone as an Obvious Judas, only to reach the end of the story and find that the character never became a Judas. Examples for characters, who aren't evil yet, belong in WildMassGuessing.

Also beware of hindsight: anyone can predict a FaceHeelTurn after it already happened. This trope only counts if the character seemed evil back when he or she was outwardly good. [[BiblicalBadGuy Judas Iscariot]] doesn't fit this trope in Literature/TheBible (though he did betray Jesus), but Judas might fit this trope in newer works that retell biblical events, and other characters might fit this trope if the audience sees an allusion to Judas.

'''THERE ARE SPOILERS AHEAD!'''
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!!Examples

[[foldercontrol]]

[[folder: Anime and Manga ]]

* ''Manga/{{Bleach}}'': Many readers were suspicious of Aizen long before he was revealed as the BigBad due to the fact he was playing the stereotypical role of the too-nice character that's deeply concerned about a potential conspiracy, who confronts the apparent villain and gets killed off shortly afterwards. Aizen's reveal was therefore fully expected rather than surprising.
* Vegeta in the Majin Buu arc of ''Manga/DragonBall Z''. DoubleSubversion. Due to everyone knowing he's a giant {{Jerkass}}, and still pretty evil, and making more than his normal "evil" behavior during this specific time, he was expected to do this. The subversion is that it appears he was FORCED into his FaceHeelTurn, then the other comes from that he used a rather elaborate BatmanGambit to get Babadi to target him, thus making him a Judas in the sense of the trope.
* {{Defied}}: Hiei from ''Manga/YuYuHakusho''. Everyone except Yusuke believed that he would betray the group during the Saint Beasts arc, however this proved not to be the case once the demon tells the Saint Beasts to go to hell.
** Yusuke's trust had a ''weird'' effect on Hiei. Later, in the Chapter Black arc everyone is ''startled'' when Hiei goes 'stop the tunnel to Demon World? Screw that, I want to go home,' and ditches the rest of the team. He comes back and saves Yusuke's life less than a week later, though. And then he and Hiei beat the snot out of each other for a while, and then they're friends again. Even after the team splits up.
* Kai from ''Anime/{{Beyblade}}''. He barely tolerated his teammates, and gave off the impression that they were beneath him and his talent. The only thing that makes his teammates' shock at his betrayal remotely believable is that such a low, petty thing as stabbing them in the back in exchange for being ''given'' power seems strange coming from someone as openly confrontational, arrogant and self-reliant as Kai.
* Ren Gyokuen from ''Manga/MagiLabyrinthOfMagic''. Back in [[{{Utopia}} Alma Torran]], how could King Solomon have ''ever'' possibly foreseen [[http://mangafox.me/manga/magi_labyrinth_of_magic/v20/c193/17.html his betrayal]] [[http://mangafox.me/manga/magi_labyrinth_of_magic/vTBD/c215/17.html at her hands?]]

[[/folder]]

[[folder: Fan Fiction ]]

* Trixie, in Fanfic/RainboomsAndRoyalty. She's a huge jerk to just about everyone except Dash, so it's little surprise when she starts actively trying to mess with the Ponyville ponies.

[[/folder]]

[[folder: Film ]]

* Harry Osborne from the ''Film/{{Spider-Man}}'' films. He was pretty much set up solely for the purpose of being Peter's Judas (starting with hitting on Mary Jane and starting to date her, the implication being that he wanted Peter to be jealous of him like he was jealous of his dad's affection for Peter).
* Magneto in ''Film/XMenFirstClass''. Conflicting views with Charles and his traumatic experiences at the hands of the Nazis makes it obvious even to those who don't know the entire X-Men story that he has a ''major'' chip on his shoulder [[HumansAreBastards towards humanity]] and will eventually betray Xavier. Although a good reason for this is more that the movie is a prequel, making the split between himself and Charles a ForegoneConclusion.

[[/folder]]

[[folder: Literature ]]

* In ''Discworld/TheLastHero'' the character of "Evil" Harry Dread proudly wears this as his hat, and even reminds the party that he is evil and therefore contractually obliged to betray them at some point. The heroes accept this as part of the Heroic Code and even congratulate him on a job well done when he does betray them.
* The ''Literature/HarryPotter'' novels {{subvert|ed trope}} this trope. Severus Snape is Harry's least favorite teacher. ''Literature/HarryPotterAndTheGobletOfFire'' reveals that Snape is a former Death Eater. Other Death Eaters are returning to the evil Voldemort. The FaceHeelTurn happens in ''Literature/HarryPotterAndTheHalfBloodPrince'', when Snape murders Dumbledore. At this point, Snape is an Obvious Judas. The final reveal in ''Literature/HarryPotterAndTheDeathlyHallows'' shows that Snape was only a ReverseMole spying on Voldemort, and had given a MercyKill to Dumbledore.
* ASongOfIceAndFire: [[spoiler: Roose Bolton.]] Even with the lack of pure heroes, he sticks out like a sore thumb among the Northmen. He [[spoiler:bleeds]] himself with [[spoiler:leeches]], he practices DroitDuSeigneur, he [[spoiler:flays]] people [[spoiler:alive]], he lives in a place called the [[spoiler:Dreadfort]], and his sigil is a [[spoiler:flayed]] man. Nothing about him makes him seem trustworthy, and sure enough, he betrays the Starks.
** It's mentioned that basically all the great lords have bannermen like this (the Tullys have the Freys, for example), and it's best to keep an eye on them, because you're not allowed to execute people who've sworn loyalty to you on the basis of "oh come on, he's totally evil!". The exception seems to be the Lannisters, as Tywin massacred two troublesome houses within the last generation and no one dares test him.
** [[spoiler: Littlefinger]] plays with this by being ''so'' obviously up to no good that people write him off as either a SarcasticDevotee or a SmugSnake with a blatantly obvious (and thus easily foreseeable) case of ChronicBackstabbingDisorder, rather than a full-fledged MagnificentBastard who excels at inducing [[WrongGenreSavvy wrong genre savviness]] in those around him until precisely the right moment.
* Nicodemus of ''Literature/TheDresdenFiles'' is teamed up with the titular Dresden in ''Skin Game.'' While the book itself has not been released yet (save for an audio clip of Jim Butcher himself reading the first four chapters), both the audience ''and'' the characters are expecting Nicodemus to betray Dresden at some point in the story, purely based on Nicodemus' actions in previous books.

[[/folder]]

[[folder: Live Action Television ]]

* A strange sort of {{subversion}} in ''Series/{{Merlin}}''. That Mordred will one day kill Arthur is a ForegoneConclusion, one that Merlin learns about as early as the first series. By the time an adult Mordred reappears in the fifth series, Merlin is nearly beside himself with paranoia, certain that the young knight is playing some sort of long con to get in good with King Arthur before betraying him. As it turns out [[spoiler:Mordred is completely genuine in his loyalty and affection for Arthur and all his creepy behaviour and ominous looks are just incidental. His betrayal comes when Arthur has his [[ChildhoodFriendRomance Childhood Sweetheart]] executed for treason, thus leading Mordred on an arguably justified (to some degree) RoaringRampageOfRevenge]].

[[/folder]]

[[folder: Theatre ]]

* JesusChristSuperstar: Judas, duh. The 2000 has him as the only follower that wears dark clothes or leather, and one of his first interactions with Jesus has him insult Magdalene for her...profession.

[[/folder]]

[[folder: Video Games ]]

* Kain from ''VideoGame/FinalFantasyIV''. Mentioning killing Rydia due to an order from the king, clearly shows jealousy of Cecil at some points, and he's a Dragoon (one of the DarkerAndEdgier classes within FinalFantasy). When he actually ''does'' betray you, however, Golbez has applied MoreThanMindControl.
* Cait Sith from ''VideoGame/FinalFantasyVII''. He's a [[CatsAreMean talking cat]] with a superiority complex and an [[TheSidhe Irish accent]]. What part of that doesn't say "trouble"?
* Bishop and Qara from ''NeverwinterNights2''. One's a SocialDarwinist who practically screams "don't trust me!", and the other's a sociopath who hates being one-upped, which TheHero frequently will. Do the math yourself. Surprisingly, though, this can be somewhat subverted; while Bishop will always sell you out, he can be persuaded not to fight you if you're female, and while Qara will almost always betray you, there's a slim chance she won't.
** You can easily plan for maintaining Qara's loyalty if given the simple piece of info that [[spoiler:whoever is more loyal of Sand and Qara will stay with you and the other will betray you]]. If that's your thing.
* Orson in ''VideoGame/FireEmblemTheSacredStones'' is introduced to us after a scene where Tirado, right-hand man of SmugSnake Valter, mentions having a traitor in Prince Ephraim's force. He also spends large amounts of time away from the party and has a goatee. The numbers add up quickly against him.
* ''VideoGame/DragonAgeOrigins'' subverts this by how quickly the villains turn; so soon that their reveals doesn't get a chance to become a spoiler. If playing the Human Noble background first, Arl Howe might surprise you in the introduction, otherwise he's already obviously evil the first time he's seen. Logain commits his betrayal and heads for coup at the end of the first Act, and the first time we see him his pale, cadaverous look screams ObviouslyEvil (although the "evil" part turns out to be a case of WellIntentionedExtremist who's overestimated his own capabilities).
** If you fail to gain enough loyalty Zevran will turn on you as soon as he's given a chance to return to his previous life with the slate wiped clean of his initial failure. This is after he's spent the game playing up how shallow, self-interested and jovially merciless he is.
* ''VideoGame/JeanneDArc'' has Gilles, a very pale, dark-eyed, and overall somewhat sinister-looking nobleman who joins Jeanne's cause. He's so polite and supportive of Jeanne that it feels like he must be up to something. And for anyone who knows their history, he's obviously Gilles de Rais, a compatriot of the real Joan of Arc who, some time after her death, was tried and convicted as a molester and serial killer of young children who had also attempted to summon a demon. By the way, the game involves a secret war against demons behind the real war between France and England... [[spoiler:Defied in the game as Gilles turns out to be perfectly heroic and loyal throughout. However, he does in the end become the [[SealedInsideAPersonShapedCan can in which the evil is sealed]] in hopes of smothering it to death under his heroic spirit, which could mean the demon got the better of him in the end]].

[[/folder]]

[[folder: Webcomics ]]

* [[http://chuckleaduck.com/comic/under-cover/ this]] Chuckle-A-Duck features Judas Iscariot himself as a DastardlyWhiplash.
* Eridan Ampora from {{Homestuck}} who was near-immediately established as a genocidal orphaner with a love of gunplay. Almost all of his darker traits were quickly overshadowed by his pathetic love life, though anyone who remembered his original introduction probably expected his turn to evil the instant his various romances were sunk.

[[/folder]]

[[folder: Western Animation ]]

* Cartman from ''WesternAnimation/SouthPark'' is the TokenEvilTeammate. Even in a reference to the last supper, Kyle believes someone will betray him. Cartman (who has already betrayed him) makes an outbursts that anyone that would betray Kyle is a loser. Through the rest of Kyle's speech, he is giving Cartman a DeathGlare.
** Also parodied in the Wal-Mart episode, where the boys are reluctant to bring Cartman with them on their trip to Wal-Mart because they know he's going to betray them. Cartman is even offended when they say they saw his betrayal coming, and claims that they're just lying.
* Sinedd from ''GalactikFootball'', he was arrogant and very distant from the Snow Kids.

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