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{{trope}}
So you want to make a mystery movie. When [[Alice and Bob|Alice]] finds out that the masked villain is actually her friend Bob, you want it to be a truly effective [[The Reveal|reveal]]. To that end, you've made an effort to avoid using a [[Paper-Thin Disguise]]... but you've hit a snag; a ''casting'' snag. Bob's actor is - in some way or another - distinct; ''too'' distinct. No matter how good the disguise is, the viewer is still very likely to guess the villain's identity early on. What do you do? Fire the actor and recast the part?

Not necessarily. You see, dear Troper, there is another way to avoid this pitfall. When an actor is either too famous, looks too distinct, sounds too distinct, or is some combination of all three; it's often a good idea to cast someone to be the mask; in other words, bring on a different actor to play the character whenever they are wearing their disguise.

This way (one can only hope) the audience won't guess the secret, at least not until you want them to.

Note that, although this is often done for villains, it is not limited to them. This trope can include any character, whether they are good or evil (or [[True Neutral|neither]]).

Can overlap with [[The Nth Doctor]] if the phenomenon is given an In-Story justification. Can also overlap with and even invert [[Samus Is a Girl]], as some of the examples will demonstrate.

'''Warning: This page contains spoilers! Read at your own risk!'''

{{examples}}
== Anime ==
* The Anime adaptation of ''[[Monster (manga)|Monster]]'' does this. To make the reveal that the pretty new girl in town is {{spoiler|not [[Action Girl]] Nina, but Johan, her [[Half Identical Twin]] (who is also the series' [[Big Bad]]) in a disguise}} more shocking, the studio used {{spoiler|Nina's voice actress}} to play {{spoiler|Johan}} whenever {{spoiler|he}} dons this look. This is done both in the Japanese version and in the English dub.
* In the English dub of [[Noein]], {{spoiler|[[Richard Epcar]] plays the title character, while [[Crispin Freeman]] plays his heroic alternate self Karasu.}}
** To be more specific, Karasu is an alternate future version of Yuu, the show's main protagonist. {{spoiler|When Noein removes his disguise and reveals himself to also be an alternate future version of Yuu (being almost exactly like Karasu, albeit with more evil intentions), he's suddenly voiced by Karasu's voice-actor [[Crispin Freeman]].}}
* The unnamed Shinigami in the first ''[[Death Note]] Relight'' special. The ending hints that {{spoiler|1=he might be the reincarnation of Light Yagami, but he isn't voiced by Light's VA in either the English or the Japanese versions}}
* In ''[[Gurren Lagann]]'', the narrator is revealed at the end to be {{spoiler|an older Simon}}, but in both English and Japanese they have different VAs...except in the epilogue, which is how it's revealed in the first place.
* In ''[[Eden of the East]]'', Akira is informed about the Selacao by Hajime Hiura, Selacao number 5, who recreates for Akira the circumstances of his recruitment by Mr. Outside. On the recording, Mr. Outside's voice is the same as that of Hiura. This makes some sense as the series raises the possibility that any of the Selacao could be Mr. Outside/"The Supporer" and not know it due to [[Laser-Guided Amnesia]].  {{spoiler|and the movies clarify that Hiura and Mr. Outside are different people}}
* ''[[Naruto]]'' has a somewhat convoluted example: Pain has six bodies, and all but the female one speak with the voice one of them had when he was alive. {{spoiler|Then it turns out, despite what we were initially lead to believe, he is not really in control either, he's just another corpse [[People Puppets|controlled by another person entirely.]]}}
* The Japanese version of ''[[Yu Yu Hakusho]]'' plays with this trope with the Masked Fighter. Judging by height and appearance, she is [[Paper-Thin Disguise|very obviously Genkai]]...but then she speaks with the voice of [[Megumi Hayashibara]], causing confusion even ''before'' {{spoiler|she's revealed to be a young woman. She is in fact Genkai, but using her technique reverts the body to its prime condition.}}
* Katsuhito Masaki, from [[Tenchi Muyo!]], in all the various incarnations of the series, has his own voice actor, apart from his alter ego of Yosho.

== Film ==
* In the film version of ''[[A Scanner Darkly]]'', Mark Turner plays "Hank", who is later revealed to be {{spoiler|Winona Ryder's character, Donna}}.
* In ''[[Batman Beyond: Return of the Joker]]'', [[The Joker]] ([[Mark Hamill]]) is actually revealed to be {{spoiler|Tim Drake (Dean Stockwell) under some sort of Sci Fi [[Demonic Possession]]}}. To make it more surprising, there is {{spoiler|a [[Red Herring]] suspect who both [[Paper-Thin Disguise|looks a lot like the Joker and is also voiced by Mark Hamill]]}}.
** The writers of DCAU Batman '''LOVE''' this trope. In ''[[Batman: Mask of the Phantasm]]'', the titular Phantasm is initially voiced by Stacy Keach, who also plays {{spoiler|Carl Beaumont}}. This is a red herring, however, as the Phantasm turns out to actually be {{spoiler|Andrea Beaumont - Carl's daughter - using a voice modulator to sound masculine}}.
** And also in ''[[Batman: Mystery of the Batwoman]]'', where Kyra Sedgewick voices the titular Batwoman, but none of the suspects for the identity.  {{spoiler|This turns out to be because ALL of the suspects are the Batwoman, using a voice modulator to sound the same}}.
* ''[[We Are the Strange]]'' does this. It's possible that the voice that speaks thorugh the SinisteRRR game (which is actually the voice from [[Sinistar]]), is also {{spoiler|1=HIM [[Big Bad]]}} who is played by M dot Strange (the director), However, the film is [[True Art Is Incomprehensible|really really confusing]], so it's hard to tell if this really is an example or not.
** For all the viewer knows, SinisteRRR is {{spoiler|just [[The Dragon]]}} and is simply repeating a mantra that {{spoiler|1=HIM}} taught it.
* ''[[The Adventures of Captain Marvel]]'': To keep audiences from figuring out which of the scientists is secretly the [[Big Bad]], the studio brought in Gerald Mohr to do the [[Big Bad]]'s voice all the way up to [[The Reveal]]. Really comes in handy when  {{spoiler|the scientists start getting killed off and the number of possible suspects is eventually narrowed down to just two}}.
* Spoofed in [[Casino Royale (1967 film)|the 1967 version of ''Casino Royale'']], where {{spoiler|[[Woody Allen]]'s character Jimmy}} is revealed to be Dr. Noah, the Head of Smersh despite his voice not even remotely sounding like Valentine Dyall, who voiced the doctor all the way up until that point.
* In ''[[Psycho]]'', {{spoiler|Anthony Perkins}} doesn't play Norma Bates until the very end of the film. Up until that point, the role was assumed by several different actors.
* In the 2007 David Fincher movie, ''[[Zodiac (film)|Zodiac]]'', no less than 3 different actors (Richmond Arquette, Bob Stephenson, and John Lacy) are used to play the titular killer (always seen either wearing a mask or as a silhouette). Late in the film, a potential suspect is revealed and is played by Charles Fleischer. Despite his looking nothing like the 3 Zodiac actors, the film never 100% clears him. The last we see of him, the possibility that he '''could''' be the killer is still somewhat open.
** Also, John Caroll Lynch plays Arthur Leigh Allen, probably the most famous Zodiac suspect. However, Lynch matches the basic body type of the 3 Zodiac actors, so he's not as dramatic or as shocking of an example as Fleisher is.
* In ''[[The Usual Suspects]]'', Keyser Soze is played by multiple people before being {{spoiler|revealed as Kevin Spacey's character}}. This is more a case of [[The Rashomon]] overlapping with [[Unreliable Narrator]], though.
* A deleted scene in ''Secret Window'' (that was not from {{spoiler|[[Johnny Depp]]}}'s perspective) shows  {{spoiler|1=Shooter (played by a very recognizeable John Turturro) starting a fire. Due to [[The Reveal]], this means that, instead of playing Shooter, Turturro is actually playing Depp's character. The director thought having Turturro appear in a scene with an objective POV wouldn't make sense in this context, thus the scene was removed from the film. The only scenes where Turturro appears in the final cut are from Depp's perspective}}.
* A twist near the end of ''[[Dungeons and Dragons: Wrath of The Dragon God]]'' is that {{spoiler|the old mage has been killed and impersonated by Klaxx}}. Until [[The Reveal|he is unmasked]] (both to the cast and the audience), he is played by {{spoiler|the old mage}}'s actor.
* In ''[[Return of the Jedi]]'', Pat Welsh voices the Bounty Hunter, Boushh, who later turns out to be {{spoiler|Leia (Carrie Fisher)}} in disguise.
* In ''[[Velvet Goldmine]]'', {{spoiler|Jonathan Rhys Meyers' character, Brian Slade, reinvents himself as a music star by the name of Tommy Stone; a different actor is used to play Tommy Stone in order to hide the surprise}}.
* A vocal variation of this was done in the ''[[The Lord of the Rings]]'' movies. In the scene where  {{spoiler|Gandalf reveals himself to Legolas, Aragorn, and Gimli in Fangorn Forest, they took both [[Ian McKellen]] and [[Christopher Lee]]'s voices saying the exact same lines and masked them over each other to hide just which of them it was.}}
**  {{spoiler|According to DVD bonus material, the two of them were asked to imitate one another for at least some of those lines.}}
* Every [[Dario Argento]] film features shots where we only see [[Hand of Death|the villain's hands]], which are actually [[Insert Cameo|those of Argento himself]].
* In ''[[High Plains Drifter]]'', there is a deliberate ambiguity as to the identity of the Stranger played by Clint Eastwood. He might be the brother of the murdered marshal, or there might be a supernatural explanation including but not limited to him being the ghost of the marshal, Satan, or an angel. When the marshal's murder is shown in flashbacks, he's played by Buddy van Horn, a stuntman who doubles for Eastwood and looks a lot like him (but different enough to aid the ambiguity).
* In ''[[Sherlock Holmes (film)|Sherlock Holmes]]'', the actor providing the voice for  {{spoiler|Moriarty}} is uncredited, and it is unknown who it is ([[The Other Wiki]] indicates rumors of it being Brad Pitt, although an Ed Tolputt is credited as "Anonymous Man", so it might be him). In the sequel film, the character is played by Jared Harris.


== Live-Action TV ==
* Used for a plot twist near the end of ''[[Montague Rhodes James|A Warning To The Curious]]'' where the ghost (John Kearney) tricks both the protagonist and the audience by disguising as {{spoiler|Dr. Black}}, and, for that scene, is appropriately played by {{spoiler|Black's actor, Clive Swift}}.
* The first appearance of {{spoiler|Commander Sela}} in ''[[Star Trek: The Next Generation]]'' {{spoiler|in the episode where Geordi is kidnapped and brainwashed by Romulans}} had her standing in the shadows, and played by a different actress (although {{spoiler|Denise Crosby}} did provide the voice). Notably, {{spoiler|Sela has black hair in this first appearance -- at the time of filming they hadn't settled on making Sela blonde to emphasise her half-human heritage.}}
* ''[[Kamen Rider]]'' does this a lot. The human and [[Monster of the Week]] forms of the bad guy usually have the same actor... except when [[The Powers That Be]] need to hide who the bad guy is. Never an in-story reason for the voice changing happening sometimes but not other times.
* In the ''[[Doctor Who]]'' serial ''Remembrance of the Daleks'' {{spoiler|the Renegade Daleks use a young girl as the "imagination" component in their battle computer. When seated in the computer's chair, she is voiced by a Davros-impersonating John Leeson--the chair is very Dalek-like in its appearance, and the voice fooled viewers into thinking that Davros was leading the Renegades.}}
* The ''[[Fresh Prince of Bel Air]]'' episode "Fresh Prince: The Movie" had Will tell about John "Fingers" O'Neill (played by Brad Garrett) after Will and the Banks family after Will witnesses a mod killing.  {{spoiler|It was all a [[Batman Gambit]] by Will and Carlton to outhustle Jazz out of his poker money. While it works, Fingers returns to where Will is, and Will runs and screams in terror. "Fingers" reveals he was really Jazz in disguise this time, out for a little payback for Will hustling him.}}
* ''[[Person of Interest]]'' in what may have been a simple recast, had archenemy Root played by one actress in the character's debut, with the Camera only showing glimpses from odd angles, or her hands while typing... in the season Finale she was played by a second actress  {{spoiler|Root pretends to be a [[Po I]] to get close to Finch, as both actresses are fairly well known it is more likely intentional.}}


== Puppet Shows ==
* In the [[Sandra Bullock]] episode of ''[[Muppets Tonight]]'', the [[Mad Bomber]] who [[Speed|threatened to blow up the studio if the ratings dropped below fifty]] was a blue Muppet voiced by Jerry Nelson. At the end of the episode, the Bomber pulls of "his" entire Muppet form as if it were a mask, and is revealed to be Sandra Bullock herself.


== Radio ==
* AREM (voiced by Bob Lutrell) is an alias {{spoiler|Robert Mitchell}} (voiced by Steve Burns) uses in ''[[Adventures in Odyssey]]''. Justified in that AREM is a computer voice {{spoiler|Robert}} uses to hide his identity.


== Video Games ==
* The RED Spy when he's disguised as {{spoiler|1=BLU Scout}} in ''[[Team Fortress 2]]'''s "Meet The Spy" video is voiced by the latter's VA until [[The Reveal]].
** In-game, when a Spy is disguised, his voice also changes to match his class.
* A very odd inversion occurs in ''[[Myst]]'' IV: Revelation. Pretty early on, it's established that {{spoiler|Sirrus}} (Brian Wrench) is still evil and that you'll ultimately have to fight him. While this is technically true, by the time you face off with him he's now [[Gender Bender|disguised]] as {{spoiler|[[Damsel in Distress|Yeesha]]}} and is thus now being played by {{spoiler|Yeesha's actress, Juliette Gosselin}}. It's also notable in that [[The Reveal]] is done without the non-mask actor being shown.
* In the first ''[[Icewind Dale]]'' game, John Kassir plays {{spoiler|Belhifet}}, while David Ogden Stiers plays {{spoiler|the narrator, who is later revealed to be Belhifet}}. Then, for good measure, once [[The Reveal]] is made, the character breaks into a fit of demonic laughter and (for his remaining 20 seconds of screentime) is played by [[Jim Cummings]].
* Another Bioware title, the first [[Baldur's Gate]] game, does this too. When {{spoiler|Sarevok}}, first approaches you as his alias, ''Koveras'', he just uses one of the stock voices you've already heard several times earlier in the game ("You need something, stranger?").
** However, if you're fast enough to click on him as he is leaving, you'll hear [[Kevin Michael Richardson]]'s very distinct voice instead.
* Done in-universe in ''[[Strong Bad's Cool Game for Attractive People|Strong Bads Cool Game for Attractive People]]: [[Stylistic Suck|Dangeresque 3]]: [[Colon Cancer|The Criminal Projective]]''. Strong Sad plays five informants, one of which is actually Perducci (The King of Town) in disguise, but Strong Sad continues playing the role until [[The Reveal]].
* In ''[[Ratchet and Clank]]: Locked and Loaded'', the thief is voiced by Rodger Bumpass. That is, until his voice modulator falls off and he is revealed to be  {{spoiler|Angela Cross}}.
* [[Played for Laughs]] in ''[[Psychonauts]],'' where the thin, agile Phantom turns out to be the morbidly obese [[Straw Critic|inner critic]] Jasper rather than the more obvious suspect, Becky. Of course, since this all takes place [[Journey to the Center of the Mind|in a crazy woman's brain]] this is somewhat [[Justified Trope|justified]].
* In ''[[BioShock (series)]]'' {{spoiler|Atlas and Frank Fontaine are voiced by two different people}}.


== Web Animation ==
* Very much played for laughs in [https://web.archive.org/web/20131104133749/http://www.homestarrunner.com/lappynapped.html this] ''[[Homestar Runner]]'' cartoon, where {{spoiler|Missy Palmer}} voices a character who...turns out to {{spoiler|definitely not be Marzipan}}.


== Western Animation ==
* In ''[[The Spectacular Spider-Man]]'', [[Steven Blum]] voices the Green Goblin, but not his civilian identity, {{spoiler|Norman Osborn}}, voiced by Alan Rachins.
** In the final episode {{spoiler|Norman Osborn is revealed to be played by [[Master of Disguise|the Chameleon]], who is voiced by... [[Steven Blum]]. One almost wonders if Rachins and Blum should be considered [[Relationship Voice Actor]]s since they seem to keep getting cast as each other's disguises.}}
* An episode of ''[[Garfield and Friends|U.S. Acres]]'' had a character who looked and sounded like Orson Pig (voiced by [[Gregg Berger]]), but is later revealed to be {{spoiler|Lanolin (voiced by Julie Payne)}} wearing a mask.
* Subverted nicely in the ''[[Adventures of the Galaxy Rangers|Galaxy Rangers]]'' episode "Mindnet." Henry Mandell does a really awful job of imitating Doug Pries's character, tipping off the audience that there's a big problem.
* The episode, "Almost Got 'Im" in ''[[Batman: The Animated Series|Batman the Animated Series]]'' focused on a meeting among various members of the rogue's gallery as they swap stories. Near the end, it turns out that {{spoiler|Killer Croc is actually Batman in disguise, despite Croc clearly being played by his regular voice actor up until that point}}.
* And for a DCAU trifecta, when Superman impersonated Batman in the ''[[Superman: The Animated Series|Superman the Animated Series]]'' episode "Knight Time", his disguise voice was provided by Kevin Conroy. The tongue-in-cheek reason? "[[The Golden Age of Comic Books|Precise muscle control]]."
** [[Fridge Brilliance|Which makes sense]] when you consider a specific [[World of Cardboard Speech|trope that Superman named.]] In that instance, Superman spoke of staying in control and keeping himself in check ''at all times.'' Certainly he's had time to practice what he can actually ''do'' with that control.
** Well, that, and it's a shout-out to the early days, when the explanation for why nobody knew Superman was Clark Kent was that he used "precise muscle control" to re-shape his face. Not sure which identity used the fake face.
* In [[Scooby Doo Mystery Inc]]. the [[Monster of the Week]] (a vampire) is believed to be Daphne's mom. She even has the same VA, Kathy Soucie.
** Usually the [[Scooby Doo]] villains will have their same voice actor, even when in disguise. There were a few exceptions, in the episode '''A Gaggle of Galloping Ghosts''', when the female gypsy fortune teller (voiced by [[June Foray]]) was revealed to be {{spoiler|a man named Big Bob Oakley (voiced by John Stephenson)}}, and on the episode '''Scooby's Gold Medal Gambit''', the [[Master of Disguise]] The Chameleon disguises himself as Scooby-Doo at one point in the episode, and his disguised voice was provided by Don Messick instead of his regular voice actor.
* In the [[Rocko's Modern Life]] episode '''Pranksters''', Filburt (voiced by Doug Lawrence) impersonates Rocko's grandmother as an April Fools' Day prank on Rocko and Heffer. When in the disguise, "Granny Rocko" is voiced by Carlos Alazraqui (essentially doing a cranky, higher-pitched version of his Rocko voice).
* In the appropriately named [[Transformers Generation 1]] episode "Masquerade" five Autobots impersonate the captured Stunticons due to "camouflage paint." Windcharger becomes "Wildrider," Jazz becomes "Dead End," Mirage portays "Drag Strip," "Breakdown" is played by Sideswipe and Optimus Prime mimics "Motormaster." Before they go meet Megatron in disguise, "Drag Strip" is voiced by Frank Welker and "Motormaster" by Peter Cullen (the respective voice actors of Mirage and Optimus). When in disguise around the Decepticons, "Wildrider" is voiced by his usual voice actor, Terry [[Mc Govern]], while "Motormaster" is played by Roger C. Carmel, Motormaster's voice actor.
* The animated version of "The Mask" had a group session where Dr. Newman had the villains who fought the Mask recount their experiences. However, it's revealed  {{spoiler|the real Dr. Newman was caught in traffic and unable to come, while the Dr. Newman with them was actually the Mask. Ben Stein voiced Dr. Newman before the reveal and with a smarm briefly returns as the Mask-as-Dr. Newman says "Although I play one on TV" (earlier, the Mask admitted he may not be a doctor).}}
* The 1980's [[Teenage Mutant Ninja Turtles]] used a [[Freaky Friday Flip]] to swap the minds of Shredder and Master Splinter in one episode. While they thought in their "real voices" with their appropriate voice actors, they still publicly "spoke in character"—Shredder was still voiced by James Avery and Peter Renaday still voiced Master Splinter.

{{reflist}}
[[Category:Spoilered Rotten]]
[[Category:Disguise Tropes]]
[[Category:Mystery Tropes]]
[[Category:Characters and Casting]]
[[Category:Costume Tropes]]
[[Category:Villains]]
[[Category:Cast as a Mask]]
[[Category:Example as a Thesis]]