Voices Are Mental

"This device will allow me to inhabit your body and you mine. That way I can fix your life and return your body to you. Now, the instructions gave me a couple of options. I chose the one where my voice will be coming from your body and vice versa. Still, from time to time, we will have to imitate the other person's voice to fool those who don't know what we've done, which is everyone."

— Stewie Griffin to Brian, Family Guy, "Switch the Flip"

When characters swap bodies, get possessed, are cloned, or otherwise change form, there has to be some way to remind the folks at home which character is doing what. The solution: base the voice off of the "mind" (when bodies are swapped/stolen) or make it relevant to the personality (in instances of cloning).

If the result of possession, it may be lampshaded with another character noticing that "You sound different...", but if so, it will be shrugged off or explained away and will generally otherwise be ignored. It will be noticed in body-swap cases only as the plot demands and most likely the audience is expected to believe that in-universe, the voices didn't switch over. Sometimes, however, the other characters will notice the change, and the swapped person will have to disguise their voice to sound like the person whose body they are inhabiting.

Very prevalent in animation, where it's much easier to pull off since the animation comes after the voice dubbing and trying to make the switch apparent through body language and mannerisms may not work as well. In film and live-action television, using a different voice to come out of someone's mouth requires redubbing and is less likely to appear unless the possessor has a voice worth hearing, such as a Voice of the Legion. In purely visual media like webcomics, it's usually averted, but may be played with using the colors, fonts, and styles of the respective characters' Speech Bubbles if one or both characters normally use special dialog bubbles.

Of course, in a body switch, one wouldn't expect the subjects to sound the same as their current body usually does anyway (slight differences in mouth shape, lung capacity and the vocal cords themselves would make differences when somebody new tried to control them without practice), but nor should they sound like their real bodies as this completely ignores the physical aspect of speech. The way your voice sounds depends on the shape of your vocal cords and the shape of your mouth. No amount of brain swapping is going to change that.

It's also worth mentioning that in cases where the voices don't switch, what should switch is the characters' accents, since that is mental... but that would require very good actors.

This trope is the "sound" aspect of Morphic Resonance. See also Eyes Are Mental.

Contrast Voices Are Not Mental, for when the voices stay with the body, not the mind. Aversions and inversions go there.

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Examples

Anime and Manga

• Fullmetal Alchemist:
  • After Al's soul became affixed to a suit of armor, he has the same prepubescent voice as when he last had an actual body, even years later. This has differing implications depending on the version: In the first anime, it signified how Al's body hadn't changed since he lost it. However, Fullmetal Alchemist: The Conqueror of Shamballa has an inversion that makes even less sense. Al's voice has deepened, due to his growing up after regaining his body, but when he transfers his soul through a suit of armor (that just happens to look almost exactly like the one he was in) to our world, his voice is back to being high-pitched. In the second anime, Al's real body is intact, connected to his armor-bound soul, and continuing to grow, which makes his voice staying the same seem like a relic of the first anime's casting.
  • In the second anime, when Greed and Ling are Sharing a Body, it speaks in the voice of who's in control at the time. One of them identified by voice, despite it not being his original body, indicate the change is literal. For reference, the manga indicated who was fronting by which side of their face the hair covers, and it was ambiguous if the character was identified by voice or the way they laughed.
  • Late in the second anime, Father takes a much younger form, but his voice still sounds like an old man's.
• In Episode 148 of the Inuyasha anime, we briefly witness an interesting variation: When Naraku takes Kikyo's form to make the protagonist think she betrayed him, his voice sure sounds like Kikyo’s, but his internal monologue still sounds like himself, which leaves one weirdly surreal impression considering that you hear a deep male voice coming from a frail-looking girl. Something similar can be seen in a flashback when he transforms into a pretty girl to fool one of the protagonist's grandfathers but stops bothering to disguise his voice when he finally confronts him and curses his family. This is averted both in thought and speech when he takes the form of a young nobleman, but this can be traced to Naraku's decision to permanently keep that appearance, and by extension, the voice, presumably because he liked them.
• Originally averted in Cardcaptor Sakura's "Freaky Friday" Flip, but then played straight in the dub. Kero and Shaoran Li's voices remain the same, but their speech patterns and mannerisms are noticeably swapped.
• Girls Bravo's Beach Episode not only had mental voices, but mental allergies. Justified in that they really are mental allergies — a later episode reveals them to be psychosomatic.
• This happens in Pokémon Ranger and the Temple of the Sea when the three members of the Team Rocket trio swap bodies thanks to Manaphy's Heart Swap attack.
• Slayers Evolution-R: When Rezo gets resurrected into Pokota's human body, his voice stays just the same as it used to be. It's kind of distracting hearing his deep voice coming out of a boy's mouth.
• The Japanese version of Digimon Tamers gives the Biomerged Digimon unique voices. However, the American dub blends the voices of the two partners. Because the identities of those involved are well established, this doubles as Viewers Are Goldfish. Both versions also have the Sleep-Mode Size and combat forms voiced in exactly the same manner, ignoring the fact that (1) a tiny bunny/puppy hybrid and a Humongous Mecha will not have the same size/shape of vocal cords, and (2) Mega Digimon with Rookie voices really doesn't sound very good. Perhaps justified by Digimons' nature as Living Programs; they do have the same vocal cords if programmed to.
• Dragon Ball:
  • Used repeatedly in Dragon Ball Z with Captain Ginyu, who can switch bodies with people. First, he switches bodies and voices with Goku, then with a frog (it actually says "ribbit" in Ginyu's voice), and finally with Bulma. Nobody seems to notice this big drill sergeant voice coming out of a normally sized woman. Making this even weirder is the fact that he needs to say the attack's name for it to work, and a frog being unable to talk is exactly why he was stuck that way.
  • Played with in Dragon Ball GT — when Baby possesses most people, he talks in their voice, but when he settles on Vegeta as a permanent host, he speaks in his own voice. To be fair, he also modifies Vegeta's body to make it more and more similar to his own true self, so he might have changed Vegeta's vocal cords as a matter of preference.
  • Averted, however, in Dragon Ball Super with Goku Black, who turns out to be an alternate Present Zamasu who swapped bodies with Goku using the Super Dragon Balls and speaks with his voice — Goku is also shown speaking with Zamasu's voice in a scene showing the body swap process.
• In Darker than Black, Intellectual Animal Mao is actually a Contractor with the ability to possess animals. He switches bodies a couple of times, so we get to see that he sounds exactly the same as a cat, a bird, or a flying squirrel — all of which sound like his original voice, as seen in a flashback.
• Bleach:
  • Subverted by Yoruichi, who is able to speak while transformed into a cat, but has a completely different voice than when human. At first the main characters were mistaken and thought that she was male.
  • One Omake in which Rukia and Renji swap gigai plays this completely straight.
• Used in the second bonus OVA of Daphne in the Brilliant Blue when Maia and Gloria are switched. The switch in voices is brought up but treated in such a way as though the other characters fully expect it to come with the territory.
• Played with in Kämpfer, after the four wake to find themselves in the bodies of their messenger dolls and vice versa. Along with Unusual Ears and a tail this creates a Paper-Thin Disguise.
• In Naruto all of the different bodies used by Pain except the female one have the voice of the first one we saw, even though that’s not the same voice as the one controlling them.
• In the original Japanese dub of Murder Princess, Alita and Falis switch voices when they switch bodies. However, this trope was purposely averted in the English dub.
• Inverted very creepily in Black Lagoon with Hansel and Gretel. Each takes turns being Hansel or Gretel, and when they switch identities, their voices switch too. When there is only one "twin" left, the voice switching is creeeeepy.
• Inverted in the Japanese and Latin American versions of Case Closed. "Conan's" young voice isn't just used when he's talking but also most of the time when he is thinking. In the English and European Spanish dubs, his thoughts are still in his older voice. In the Catalan dub, his voice while talking shifts between a child and an adult (two different voice actors) almost at random. Not only does this sound weird, but it also creates a huge Plot Hole unless one assumes that the characters don't hear the difference.
• One Piece:
  • Tony Tony Chopper can take the form of a giant reindeer-man, but has the same little kid voice, albeit slightly deeper. In the 4Kids Entertainment dub, his larger form instead has a deep, gravelly man's voice. Chopper's human-form voice is also deeper in The Giant Mechanical Soldier of Karakuri Castle', in which he was played by Kazue Ikura rather than Ikue Otani.
  • The zombies made by Moria and Hogback keep the voices of the shadows' owners rather than having the voices of their original selves. Considering that a zombie's personality is largely defined by their shadow, it kinda makes sense. Although the zombie's voice sounds slightly different from the shadow's owner.
  • When Law switches people's minds around, their voices remain the same. It's worth noting that the Straw Hats have to wear badges to know who is who in the swapped bodies.
• Happens in RahXephon: Ernst von Bähbem takes over the body of his "niece" Helena in order to survive just long enough to see the end of the world that he orchestrated. While in the body of a thirty-something woman, von Bähbem still talks with his raspy old man voice.
• Yu-Gi-Oh!:
  • Taken to another level with mental voices as well. Yami and Yugi normally have different voices, but this also applies when they’re thinking; if the two Mind Meld, then their Inner Monologues have Yugi's voice. If it's only Yami, then it's his own voice. However, this is complicated by the fact that they have the same voice actor, so it might actually be the "same" voice.
  • When it comes to mind control (especially done by Marik), things get a little messy. For example, in the dub, his voice is used simultaneously with the controlled person's voice; in the original, it's much more inconsistent. For example, Jounouchi (Joey) has the same voice as always when controlled, but Anzu (Téa)'s voice becomes 100% Marik's.
• The To Love Ru anime has three episodes where Rito is turned into a girl. In the first, it doesn't change his voice at all. In the second, "Riko" has a more feminine voice while speaking, but thinks in his normal voice. In the third, Riko sounds like a girl while speaking and while thinking.
• The ghost Amanojaku manages to retain his original voice in Ghost Stories even after possessing Kaya, a cat, despite the fact that cats don't even have a vocal tract capable of producing language, and Kaya appeared to be nothing but an ordinary cat before the possession.
• Played straight in Powerpuff Girls Z when the girls swap bodies with each other after accidentally knocking into each other's heads during a battle with Fuzzy. Blossom ends up in Buttercup's body, Bubbles in Blossom's, and Buttercup in Bubbles'. They do it again after another battle with Fuzzy at the end of the episode, only this time with Blossom in Bubbles' body, Bubbles in Buttercup's, and Buttercup in Blossom's.
• This happens in the Japanese version of Fairy Tail when everyone in the Village of the Sun gets turned into children by Doriath's curse, keeping their adult voices despite normally using higher registers (or female actors in Natsu and Gray's cases) during flashbacks to their childhood. This is mainly done to indicate that they technically aren't children, but just given significantly weaker bodies. The English dub, on the other hand, fully avoids this by giving them their respective child voices.
• In episode 7a of Tamagotchi, when Chamametchi presses a button in the Mamemame Labratory, she and Mametchi experience a "Freaky Friday" Flip (with Chamametchi not understanding this but noticing that she's taller and thinking that it's from all the milk she drank) and their voices swap to match as well.
• In the Italian dub of Saint Seiya, Saga's good side speaks in a woman's voice, which can be heard when he's monologuing with himself, but also results in Saga talking with a woman's voice when the "good side" is in charge, reverting to his normal male voice when evil.
• In episode 21 of Jewelpet Twinkle☆, Miria and Sara swap voices along with their bodies after an accident involving Headmaster Moldavite mixing their potions.
• Inverted in Ayakashi Triangle, where Matsuri being turned into a girl immediately changes his voice to a girl's even in his thoughts.

Asian Animation

• Lamput: In "Transfer Gun", the Boss and Lamput get their bodies swapped, and Lamput gains the Boss' deep-pitched gibberish speech while the Boss gets Lamput's higher-pitched voice.
• In the Motu Patlu episode "Soul Change", Motu and Patlu's voices switch to indicate which person is which when they swap bodies.
• In episode 39 of Nana Moon, Grunt and Master Satellite have their voices switched while they are under the effects of their body swap.

Comic Books

• In one story arc of Ghost Rider, a woman named Linda Littletrees is possessed by Satan, who uses her to seek out Johnny Blaze. The first time Satan speaks to someone, he thinks how he has to be careful to disguise his voice, since "the raspy tones of Satan" coming from a young woman would surely draw unwanted attention.
• Archie Comics managed to convey this in a medium with no sound. In a story from Riverdale High, Archie and Mr. Weatherbee switch bodies. Until they switch back, any speech bubble that comes out of Archie's mouth has a picture of Mr. Weatherbee inside, and any speech bubble that comes out of the Bee's mouth has a picture of Arch. The same motif applies to thought balloons.

Fan Works

• Abraxas (Hrodvitnon):
  • Zig-zagged by Monster X. Both San and Vivienne Graham's respective physical voices emitted from their respective mouths in Monster X's first form are described by the author as sounding like the Gravemind in Halo, and only when they scream do their voice(s) prominently sound like a mix of Ghidorah's roar and a human scream. After metamorphosing into their second form, San and Vivienne communicate with humans via radio waves; San's radio voice is indicated to be the same as his mental voice, while Vivienne's radio voice explicitly sounds like her original human voice.
  • Played straight by the Many, as their Mind Hives' psychic voices apparently consist of the voices of every victim they've assimilated.
• All Assorted Animorphs AUs: Invoked in "What if Tom was infested by a member of the Yeerk Peace Movement?" by Aftran, who agrees to speak in a higher pitch than Tom whenever she takes control of his body.
• It's noted multiple times in Dæmorphing that thought-speak voices sound like people's out-loud voices (when applicable); for example, when the Yeerks interrogate Loren under the assumption that she's David, her daemon Jaxom pretends to be him because his mental voice sounds more like a teenage boy's.
• Inverted in a "Freaky Friday" Flip fanfiction of X-Men: Evolution in which each body uses the right voices for each body — even the accents. Thus, using the body of someone German automatically gives one a German accent.
• Downplayed in the RWBY fanfic Happily Ever After. While Eyes Are Mental, and Cinder's eyes change from yellow to green after Pyrrha takes over, the voice is Cinder's, but it sounds off, since the inflections and such are Pyrrha's.
• Rapture Falls has a justified example, since the character in question is known for being a Man of a Thousand Voices; his original personality uses his natural voice and accent, while the Atlas persona uses the Irish accent that Fontaine made up for Atlas when he was just another character of Fontaine's.When Fontaine takes over during the Big Sister fight, several characters comment on his voice sounding odd- though they're distracted from investigating by the circumstances. Brigid Tenenbaum, who knows him as both Fontaine and Atlas, is immediately suspicious- though what really gives the game away is Fontaine reacting poorly to being called 'Atlas'.

Films — Animated

• In Batman Beyond: Return of the Joker, the Joker demonstrates that he can speak in Tim Drake's voice even after transforming Tim's body to resemble his own.
• In Pleasant Goat and Big Big Wolf: Amazing Pleasant Goat, the body-swapped Paddi and Wolffy also have the other's voice instead of their own, which somehow doesn't tip off Weslie when he finally finds Paddi — a.k.a. Wolffy in Paddi's body.
• In Turning Red, Mei retains her voice unchanged when she is in her giant red panda form despite it being the size of a large bear. Similarly, Mei's grandma and aunties voices are the same in their elephant-sized giant red panda forms. Only Ming's Kaiju-sized red panda form has a deeper voice than her human form.

Films — Live Action

• Inverted in Face/Off. The swapped guys have the voices of the actors who play them, but not before and after. This is explained via a scene after Archer comes out of his surgery with the face of Nicolas Cage (Castor), but still speaks with the voice of John Travolta (Archer pre-surgery), because they only had a face transplant, with the rest of their bodies, including their vocal cords, remaining the same. An inhibitor chip is inserted into his larynx to modulate his vocal cords from Archer's nasally voice to Castor's huskier tones.
• Godzilla vs. Kong: When the Ghidorah skull's consciousness remnants awaken and hijack the connection to Mechagodzilla, faint repetitions of Ghidorah's alpha roar are audible to signify what is happening; when Ghidorah's consciousness is actually inside and reprogramming the Mecha, the repetitions of Ghidorah's roar gradually grow more mechanized. Afterwards, for the rest of the film when Mechagodzilla has effectively become Ghidorah reincarnated, listen closely and you'll definitively hear Mechagodzilla producing slightly mechanized versions of Ghidorah's vocalizations.
• Happens on and off in the Harry Potter films via the Polyjuice Potion, though it's averted in the books.
  • It's most likely done for the audience's benefit in Harry Potter and the Chamber of Secrets, though this does actually happen in-universe as the characters comment on still having their own voices ("We still sound like ourselves! You need to sound more like Crabbe.") Draco never catches onto his lackies having the voices of his sworn enemies, though, likely because they don't speak much in the first place.
  • On the other hand, in Harry Potter and the Goblet of Fire, Barty Crouch, Jr., whilst impersonating Mad-Eye Moody is definitely not voiced by David Tennant, and he's not busted until after Crouch gets caught with the real Moody locked up in a chest. Unlike the previous instance, this one was meant to be a plot twist.
  • In Harry Potter and the Deathly Hallows, during the trio's infiltration of the Ministry, a disguised Ron briefly speaks in the voice of Reg Cattermole, the person he's impersonating, until he realizes he is talking to Harry.
• This happens in Scooby-Doo (2002) when the cast’s souls try to find their original bodies.
• This happens at the end of X-Men: The Last Stand after the credits when Prof. X reappears in the body of the mindless coma patient. It's Hand Waved by the fact that the coma patient was his twin brother.
• Zig-zagged in It's a Boy Girl Thing — voices stay with the bodies, but the thoughts of the characters are given as voiceovers in the possessors' voice.
• Day Watch has Anton and Olga switch bodies in order to avoid Anton being dragged in by the Day Watch for a suspected murder. The voices carry over with the personality, and they each have to perform a small glamour in order to sound like who they look like.
• In The Ghost of Frankenstein, the monster takes on the voice of Ygor (Bela Lugosi) after a brain transplant.
• The Ur-Example may be Turnabout, a 1940 "Freaky Friday" Flip comedy in which the souls of a married couple switch bodies and their voices go along.
• Pleasant Goat and Big Big Wolf: I Love Wolffy: Weslie controlling Pi Zong via a device attached to his head is a plot point. While he's under his command, Pi Zong speaks using Weslie's voice.

Literature

• An inversion of this concept appears in Animorphs, in which characters communicating mentally will pause frequently if they are out of breath, as if panting between words. Presumably, this is simply because we're used to pausing if attempting to speak when out of breath, and the characters never trained themselves out of the habit for thought-speak.
• In Good Omens, when various characters get angelically possessed, Aziraphale speaks through them with his normal (genteel, British) voice. He ends up holding conversations aloud with the bodies' original inhabitants, each speaking in their own voice. Onlookers tend to be unnerved by this, particularly when it happens to a televangelist on live TV.
• Patternist: Downplayed with Doro the Body Surfer. His voice changes from host to host, but people who know him can identify him as soon as he speaks, no matter what.
• Star Wars Legends: In Galaxy of Fear, if someone's brain has been removed and replaced with another brain, they keep the body's voice but speak differently.
• Turnabout: Tim and Sally's voices go with their minds, which produces an unsettling effect when each speaks with the other's voice. They must work to adjust their voices to fit their new bodies.

Live-Action TV

• El Chapulín Colorado was redubbed when swapping the high-toned Damsel in Distress and the baritone Big Guy. When everyone gets better, it happens again with one scientist and the Right-Hand Dog.
• Doctor Who:
  • Downplayed in "New Earth". When Lady Cassandra possesses Rose and the Doctor (constantly alternating between the two), she speaks with the host's voice but has her posh accent. With Rose, this means that Billie Piper uses her native RP accent instead of the Cockney accent she normally uses, while for the Doctor, David Tennant uses a modified version of the English accent he adapted for the character.
  • "The Doctor’s Wife": In her attempts to explain who she is to the Doctor, Sexy opens her mouth and makes the wheezing sound of the TARDIS perfectly.
  • "The Almost People": While the Ganger Doctor is trying to cope in the beginning of the episode, he speaks in the Fourth and Tenth Doctor's voices. Justified in that the Flesh, adaptive as it is, can easily rearrange itself to create a different vocal pattern.
• In the Dollhouse episode "A Love Supreme", Alpha downloads Ballard's personality into himself. When Ballard briefly manages to take control of Alpha, he speaks with his own voice.
• The Farscape episode "Out of Their Minds" begins with this, just so that the viewers get what's going on immediately, by blending the voices of the two people involved. Later in the episode, though, the characters have all reverted to the body's voice, with each actor just using the other's body language and vocal patterns (or trying to).
• Get Smart: Maxwell Smart asks a fellow Control agent to be the Best Man at his wedding. The agent is apparently a Master of Disguise, as he's a gorgeous female cabaret dancer with a (dubbed) male voice.
• Gilligan's Island: In the episode "The Friendly Physician", Mad Scientist Dr. Boris Balinkoff takes the castaways to his own island for mind-switching experiments. Each castaway speaks with the voice of whoever's mind is inhabiting it.
• Lampshaded in the Henry Danger episode "Captain Man-Kini":
  Captain Man (as Frankini): Didja hear Frankini's voice comin' outta my handsome face?
• Kamen Rider:
  • Non-standard example in Kamen Rider Wizard that goes here more than anywhere else: Big Bad Wiseman and the White Wizard have different voices courtesy of different actors. Then we meet Sou Fueki who also has his own actor. However, when Fueki first transforms into White Wizard onscreen, suddenly and from then on, the White Wizard speaks with the voice of Fueki. Later, when Wiseman is revealed to actually be Fueki as well, he suddenly spends the rest of the series speaking with the voice of Fueki. Different forms sounding different makes sense (vocal cords, muffling, etc. and perhaps deliberate disguising via magic), but it really doesn’t make sense for them to change once the viewer knows who's behind the mask.
  • Kamen Rider Ex-Aid plays this straight with the usual Bugster virus infection as people controlled by Bugsters have a demonic voice thing going on. On the other hand, it's played with when Parado controls Emu, whose voice remains the same, but the speech patterns are so distinctly Parado's that he outs himself pretty quickly.
  • Kamen Rider Zero-One: When Naki takes over Isamu, their soft, quiet voice replaces his deep, loud snarl. It's more than a little eerie.
• Subverted in the Mork & Mindy episode "Metamorphosis — The TV Show", in which Mork and Mearth switch bodies. They talk in each other's voices, but in this case, there are no dub-overs involved; instead, Robin Williams and Jonathan Winters expertly imitate one another.
• In the first episode of Now and Again, Michael Wiseman is heard "speaking" to Dr. Morris, who informs him that he's just a brain hooked up to a computer now. He still sounds like John Goodman. However, this may just be Wiseman's mental reconstruction of his own voice; when he wakes up in his new body, we still see him as John Goodman until he takes a look in the mirror, at which point Wiseman is played and voiced by Eric Close for the remainder of the series.
• In Power Rangers Ninja Storm, the evil vocal effect on the Thunder Rangers goes away once they reveal who they are to the Wind Rangers.
• Red Dwarf:
  • Justified in a few instances with Holly, who is technically a computerised voice. In "Queeg", Queeg speaks with Holly's voice when he reveals the episode's gag, and Holly speaks with Queeg's voice just prior to the end. There's also an instance in "Justice" when Holly is briefly possessed by Justice World's A.I., speaking with its deep, authoritative voice instead of her own.
  • When Lister has the mind of Executive Officer Carol Brown put into him so that he can stop an auto-destruct sequence, he speaks with her voice. It doesn't work, but that's okay; Holly got rid of the bomb long ago. She might've mentioned it, but they didn't ask.
  • In the episode "Bodyswap", Rimmer and Lister switch bodies and their voices also switch, which was why it was the first episode not to be filmed in front of a live studio audience. This is clearly for Rule of Funny as much as any other reason. Partially justified in Rimmer-Lister's case, as Rimmer is a hologram and thus can be adjusted to use Lister's voice.
• In Stargate SG-1, this trope is averted in the first body-swapping episode. The various actors do a hilariously good job of adopting each other's mannerisms, so it's still obvious who is in whose body, though the character with the body swapping technology that instigates the plot shares an actor with the main cast member who he swaps bodies with. However, in later cases, like the intergalactic communication device that exchanges two people's bodies, the trope is exaggerated and the actors are swapped out so that the audience will see the person whose mind is in control, even though the characters are seeing the person whose body is being controlled.
• Star Trek: The Original Series:
  • In "Return to Tomorrow", several Enterprise personnel are (voluntarily) possessed by alien mental entities. When speaking, their voices are very different (louder and a different pitch, like in an echo chamber).
  • In "Spock's Brain", the disembodied organ of the title manages to speak through the computer system it's plugged into. For some reason, it talks in Spock's voice without having his vocal cords — and this is actually not the biggest logic failure in the episode.
  • The trope is averted in the actual "Freaky Friday" Flip episode "Turnabout Intruder".
• In The Super Mario Bros. Super Show!, Mario gets his mind swapped with that of Frank N. Stein's monster. It's not exactly the best dub job out there, but they do follow the trope. A knock on the noggin with a hammer for each of them is enough to swap them back.

Video Games

• Kingdom Hearts often uses this, though in this case, given the lore of the series, it's more "Voices are tied to the heart".
  • Kingdom Hearts: When Ansem possesses Riku, he first speaks with both of their voices at once, then eventually only Ansem's.
  • Kingdom Hearts II: Riku has taken on Ansem's form. He has Ansem's voice until Sora discovers who he is, at which point he drops the charade and suddenly has Mamoru Miyano's (Japanese) or David Gallagher's (English) voice.
  • Kingdom Hearts: 358/2 Days: One of their more effective uses of this trope is with Xion, a female Sora clone — using one of Kairi's voice actresses makes The Reveal more shocking. The scene in which she becomes physically identical to Sora while retaining her original voice makes for some effective Nightmare Fuel.
  • Another interesting version of this trope is used in Kingdom Hearts: Birth by Sleep when Master Xehanort possesses Terra, becoming the Xehanort that is the main villain of the series. Now Master Xehanort and Xehanort have different voices, but in the Japanese version, they are voiced by father and son Chikao and Akio Ohtsuka, with the implication that it's the same voice, only younger-sounding. This detail wasn't able to be replicated in the dub, though the implication is still there. Following Chikao's death, Akio Ohtsuka took over as Master Xehanort's voice.
  • There's also Vanitas, also from Birth by Sleep, who's the physical manifestation of all darkness within Ventus' heart. He shares Sora's voice actor in both versions, although it isn't noticeable at first, because they just do a darn good job at sounding evil.
• Played with to a certain extent in the Metal Gear series. In Metal Gear Solid 2: Sons of Liberty, when Liquid possesses Ocelot, he speaks with Liquid's voice. In Metal Gear Solid 4: Guns of the Patriots, "Liquid Ocelot" always speaks with Ocelot's voice in the English version, and Liquid's voice in the Japanese version due to the unfortunate death of Kōji Totani.
• Zig-zagged in Nicktoons: Globs of Doom whenever Big Bad Globulous Maximus speaks through SpongeBob SquarePants. At first, it's merely SpongeBob acting evil; the second time, we start with evil SpongeBob, who switches to Globulous' voice mid-sentence (which is the cue needed for Jimmy Neutron to note that he's speaking through him and for Invader Zim to complain about Globulous being a larger ham than him. Yep.) and after that, it's a hammy Dee Bradley Baker "voicing" the yellow guy.
• When Momohime is being controlled by Jinkuro in Muramasa: The Demon Blade, she still uses her own voice actor, but at a noticeably lower register. She also switches pronoun use to a pronoun commonly used by old men.
• Remember11 goes back and forth on this. When Kokoro and Satoru switch bodies, they retain the same voice actors (i.e., Kokoro in Satoru's body still has Kokoro's voice), but the fact that people have trouble telling them apart, as well as things such as recordings made by Satoru-in-Kokoro’s-body having Kokoro's voice, imply that their voices do stay with the bodies in-universe, but the player hears them with the associated mind for convenience.
• Zig-zagged in Sam & Max: The Devil's Playhouse. In episode 3, They Stole Max's Brain!, Sammun-Mak keeps his own voice when Sam places his brain in Max's body, while Max retains his own voice as a Brain in a Jar. However, in episode 5, The City That Dares Not Sleep, when Grandpa Stinky and one of General Skun-ka'pe's minions swap brains toward the end of the episode, their voices (as well as Grandpa Stinky's Scottish accent) remain with their original bodies. This also occurs in Season 2 when Sam and Max swap bodies. Then there is the Monster, which can hold 2 souls simultaneously, switching between voices as (t)he(y) talk(s). The demons emulate the possessed's voice, but sometimes fail.
• In Disgaea 2: Cursed Memories, any character that gets transformed into a monster by the Dark Sun retains their original voice.
• It's hard to tell whether this applies to [PROTOTYPE], since we don't know exactly how the main character's shapeshifting works. He can mimic other people's voices in cutscenes, but in gameplay, he always makes the same grunts regardless of who he's impersonating. (From a Doylist perspective, the explanation is that they didn't bother to program alternate grunts for him; a Watsonian one could be that Alex himself doesn't bother messing around with his vocal cords for every single form he ever takes.)
• In Puyo Puyo 7, when Arle is possessed by Ecolo, she has her own voice. However, when Satan notices that Arle is possessed, her voice changes to Ecolo's.
• In Super Mario 64 DS, if your character lacks an ability required to complete the level, you can transform into a different character by finding his hat. Doing this does not change your voice.
• Fire Emblem: The various animal shapeshifters in Fire Emblem: Awakening and Fire Emblem Fates retain their voices while transformed in battle, albeit with a reverb added to it. It's used to rather unsettling effect in the latter game when the Avatar goes on a berserk rampage in their dragon form following Mikoto’s death, their agonized screams being mixed into their bestial roars.
• In Fallout 4, Nick Valentine briefly starts speaking as Kellogg, in his voice, as a result of residual signals after being connected to part of the latter's brain. Justified in that he's a Synth.
• In an absolutely bizarre twist, Tales of Symphonia manages to play this straight, avert it, and play with it not only all in the same game, but all in the same scene.
  • Played straight:
    • When Colette is finally possessed by Martel, it's Martel's voice that is used.
    • This also applies to all of the female characters, depending on if you choose one of them in Flanoir, when Mithos possesses them and takes them to Dherris-Karlan.
  • Averted: For at least Zelos in the above scene if you have chosen him, his own voice remains.
  • Played with: For Regal, both voices are used, one over the top of the other.
• In Assassin's Creed: Valhalla, your character experiences visions of being Odin in the mythical realms of Asgard and Jotunheim. Several of the characters have the same voices as people they know in their real life, and there's a good reason for this: those Asgardians used advanced technology to periodically "reincarnate" themselves into humans. Your visions of Asgard aren't visions, they’re memories.
• Divinity: Original Sin II:
  • Possessed characters speak in their possessor's voice when the possessor is exerting direct control, such as when Lohse's demon gains the upper hand and when the Greater-Scope Villain pulls a Villain Override on the Voidwoken or his Sworn.
  • Justified with Fane, who explains that he can still speak as a fleshless skeleton through Telepathy that people's minds interpret as his normal voice.

Webcomics

• In Gunnerkrigg Court, Speech Bubbles are colored differently to distinguish the different characters' voices, and Reynardine's bubbles are the same color regardless of whose body he's possessing. Word of God clarifies that his voice is always recognizably his own, but he doesn't sound exactly the same in different bodies.
• Suggested in Looking for Group when Richard is summoned back from the Plane of Suck and ends up in Pella's body. Richard's trademark speech bubble is there, clearly indicating who is supposed to be the one doing the speaking. This is also used when Richard takes over a stone golem. Given that Richard is a lich of some sort, this might be justified in that he's using magic.

Web Original

• Red vs. Blue:
  • The first time that Church possesses someone (Sarge), he speaks as Church pretending to be Sarge; later, when possessing Donut, he speaks in his normal voice, which Tucker and Caboose hear as Church and Grif and Simmons hear it as Donut. Later, when Church possesses Lopez, he speaks in his normal voice in a different language, apparently because Lopez is physically unable to speak English; however, Grif and Simmons still don't notice a change. (The latter case is enforced: both Church and Lopez are voiced by Burnie Burns.)
  • The reason behind the first change is because the writers couldn’t decide if Burnie would pretend to be the character he was possessing or if they would have the possessed character's VA do their voice different or try to sound like Church. Ultimately, Burnie decided that because his Donut impression sounded too much like another character, they would do away with it and just have Church's voice.
  • Another curious example: Church's second robot body is seen only speaking French, yet Church speaks English in his normal voice when inhabiting it, inverting the Lopez example.
  • In-universe, this can be justified by Church actually being an A.I. and using the armor of his host to project his own voice rather than using the vocal cords of the host itself.
• Played with in RWBY, after Ozpin reincarnates into a young boy called Oscar by merging their souls. While both of them speak using the voice of Oscar's body, it's very easy to identify when Ozpin is in control due to his distinctive accent and speech patterns.
• DSBT InsaniT: Lampshaded by Weird Girl in "VRcade".
  Weird Girl: Have you done the body-switching thing where the voices change, too, even though our voices are formed by our vocal cords and not our minds, but it's done so the viewers don't get confoosed?

Western Animation

• Adventure Time: In "Sons of Mars", Magic Man uses a spell to swap bodies with Jake. They keep their true voices in their false bodies.
• Played straight and averted in two different episodes of The Adventures of Jimmy Neutron, Boy Genius. When Jimmy and Cindy switch bodies, the "brains" retain their voices, but when Jimmy creates imperfect clones of himself, each has a different voice related to their personalities.
• American Dad!: Humans are perfectly capable of talking even when their minds are transplanted into animal bodies, while their original bodies will only make animal noises.
• Danny Phantom has this happen whenever someone is possessed, leading at least twice to one character arguing with themselves with two distinct voices. Like the temporary eye colour change of possessed people, it is somewhat confusing as to whether this is actually happening or merely a cue to help the audience follow what's going on. The other characters never notice it, at any rate.
• Happens in the pilot of Dexter's Laboratory when Dexter and Dee Dee end up in each other's bodies at the episode's conclusion.
• In the DuckTales (1987) episode "Send in the Clones", the Beagle Boys impersonate Huey, Dewey and Louie with help from Magica De Spell, who later uses her magic to disguise herself as Mrs. Beakley. They have the appearances spot-on but retain their true voices.
• In The Dragon Prince, Callum speaks with Aaravos's voice after Aaravos possesses him through the mirror.
• The Blinky Bill episode "Blinky the Hypnotist" has Blinky learning hypnotism, which he uses to switch Flap, Splodge and Marcia's personalities respectively with Mr. Wombat, Miss Magpie and Mayor Pelican. Their voices go along with the personality they end up with.
• Happens in Lilo & Stitch: The Series when the title characters swap bodies in one episode.
• Happens in Captain N: The Game Master during a three-way between Gameboy, a King Kong-sized version of Donkey Kong, and Mother Brain, Metroid's giant brain-in-a-jar with the voice of Audrey II from Little Shop of Horrors.
• Darkwing Duck: In the episode "Trading Faces", Darkwing switches minds with Gosalyn, Launchpad switches minds with Honker, and they all change voices accordingly.
• The Tick: "The Tick vs. Science" has a lot of fun with this, with human characters suddenly saddled with the vocalizations of a giant sentient tongue and so forth.
• Teen Titans (2003):
  • An aversion (in a sense) comes in the form of Jericho, a Heroic Mime who only seems to be able to speak when he's possessing someone who can speak. As he has no voice of his own, it can be assumed that he uses their voice to speak (though this would be a more definite assertion if the only time the viewer was shown this wasn't when he was possessing Cinderblock).
  • A fun story from one of the writers comes from the episode "Switched": the voice actresses for Raven and Starfire were originally supposed to switch roles, with "Starfire" speaking in monotone and "Raven" speaking cheerfully. It then turned out that both actresses were so good at mimicking the other character’s voice that they could barely tell a switch had been made, leading the writers to simply drop the idea.
  • Briefly played with six ways from Sunday in the Larry episode "Fractured" — reality is broken and mouths are traded around so that characters talk with other voices, leaving Beast Boy without a mouth, making him hard to understand. Particularly charming is Cyborg talking smack via Starfire's voice.
• Jackie Chan Adventures plays around with this.
  • This is averted when the demon Shendu possesses Jade, yet it's played straight when he later possesses Valmont and Jackie.
  • Also played straight and lampshaded when Jade and Jackie switch bodies in "Sheep In, Sheep Out"; Jackie asks why Jade's voice is coming out of his body and vice versa.
• Ben 10:
  • At first averted, then played straight in the Ben 10 episode "A Change of Face". When Charmcaster switches with Gwen, they keep their normal voices, but when Gwen and Ben wind up in each other's bodies, the voices go with the minds. Even Ben's alien forms get deeper female voices. It is never explained why Charmcaster and Gwen retain their normal voices, though it is speculated to be either that they are both female or that they both have magic abilities, which Ben does not.
  • Again played straight in "Ghostfreaked Out" whenever Ghostfreak possesses someone. (Also, their eyes change.)
  • Later averted in Ben 10: Alien Force, when an alien is turned into a clone of Ben that just has much more serious and stilted inflection. This was probably so that it would be hard for the audience to figure out before The Reveal, and because the guy was apparently an alien like Greymatter before it would have sounded even more ridiculous than usual.
  • The largest aversion is that Ben's alien forms are voiced by several different voice actors, all of them different from Ben's normal voice actor except for Upgrade (who seems to be synthesizing his voice). In contrast, Ben's Evil Counterpart Kevin 11 retains the same voice in all his forms when he shapeshifts into several of Ben's different alien forms.
  • Played straight in an episode of Ben 10: Ultimate Alien in which Kevin and Gwen are each turned into several of Ben's alien forms, all of which are their voice actors impersonating the voices which each alien normally has (including Gwen's VA impersonating Rath).
  • Also, since the Omnitrix aliens are derived from DNA samples, the voice really shouldn't change based on who uses the form. Four Arms, for example, comes from the same chunk of Tetramand DNA no matter who's wearing the Omnitrix — it's temporarily becoming a clone of one guy in particular. This is true even when it's not the same device: We eventually learn about the Codon Stream where all the samples exist. The original Omnitrix, Albedo’s Omnitrix, and the Ultimatrix all access the same sample.)
  • Ben 10: Omniverse again goes back and forth on it. In "Arrested Development", a de-aged Ben is voiced by his original series VA. Two episodes later in "Ben Again", young Ben and teen Ben switch places via Mental Time Travel. The voices go with the minds, and other characters even hear the difference. The Omnitrix-wielding "Gwen 10" from an alternate timeline also zig-zags this for her appearances in Omniverse — her versions of Wildvine and XLR8 are voiced by her regular VA Ashley Johnson, while her version of Diamondhead is instead voiced by Tara Strong. However, the version appearing in a What If? episode of the original series uses multiple voices similarly to Ben.
  • Kevin's appearances in Ben 10 (2016) as a more direct Evil Counterpart, with his own counterpart to the Omnitrix, also demonstrates this trope with the only difference being subtle pitch variations, while Ben’s aliens are still performances by multiple voice actors.
• In The Powerpuff Girls (1998), when the girls are Freaky Friday Flipped with the Professor, the Mayor, and Miss Bellum, they not only retain their voices but their powers as well. Granted, it's mainly because (as the Professor’s Technobabble explains) they switched outer "layers" rather than their entire bodies being swapped.
• Code Lyoko: In "A Fine Mess", when a computer glitch in Lyoko switches Odd's and Yumi's bodies, they also switch voices. The same occurs in episode "Nobody in Particular", in which a disincarnated Ulrich still retains his own voice while possessing Jim — or Kiwi, actually talking through the dog. That last part is actually quite ironic since Ulrich and Kiwi have the same voice actress.
• Transformers:
  • Both averted and subverted in The Transformers. Starscream's ghost possesses Cyclonus, and can imitate both his voice and Cyclonus' voice. When he cries out in surprise, however, his troops notice that he sounds like Starscream.
  • In the Beast Wars episode "Possession", in which Waspinator is possessed by Starscream's spark, he consequently sounds like a G1 Starscream sound-alike. His Predacon insignia even becomes a Decepticon insignia.
  • Averted in the Transformers: Rescue Bots episode "Switcheroo", in which the characters retain the original voices of their bodies yet change mannerisms and personalities of the ones they swap with. The entire episode idea itself came from the cast goofing off and imitating each others' characters.
• TaleSpin: In one episode, Baloo and Kit switch bodies and voices. Notably, it's shown that it's not just a case of Rule of Perception but rather something that other characters can notice, as they have to trick Rebecca into thinking that there's something wrong with her hearing.
• Subverted in the I Am Weasel short "I. Architect". Owing to a surgical mishap, Weasel and Baboon's brains are switched. Michael Dorn (Baboon-in-Weasel) imitates Charlie Adler's goofy way of speaking, while Adler (Weasel-in-Baboon) speaks with Dorn's dry precision. The effect is pretty hilarious.
• Kim Possible does this with two different brain swaps in the "Freaky Friday" Flip episode. In both cases, Shego thinks that it's just a hoot. Lampshaded but hand waved by Kim, who explains away her regular voice as "puberty".
• American Dragon: Jake Long had a "Freaky Friday" Flip with his little sister, with this trope hard at work.
• Batman: The Brave and the Bold:
  • Played straight and averted with Deadman when he possesses Batman. Deadman's VA speaks, but when he possesses Speedy, the same VA just imitates Deadman's New York accent.
  • Another episode has Batwoman initiate a "Freaky Friday" Flip with Batman; they keep their voice actors, who imitate each other's acting (albeit Bader is acting much more effeminate than Batwoman ever really did), which means we get to hear Batman ask Nightwing and Batgirl "Does this cape make my butt look big?"
• Batman Beyond: In "Out of the Past", this trope serves as The Reveal that Ra's al Ghul pulled a Grand Theft Me on his own daughter, Talia al Ghul. However, it's a bit odd given that the body's real voice is also accessible. Presumably, he was simply faking the body's original voice.
• One episode of The Real Ghostbusters has Egon and Slimer switch minds and voices. On top of that, Egon's vision problems apparently transfer over along with his mind, because Egon (in Slimer's body) insists on wearing his glasses.
• Family Guy:
  • Happens in one episode where Peter and Lois accidentally switch bodies for a brief moment, when they try one of Stewie's inventions.
  • When Peter shapeshifts into Britney Spears in "Family Guy Viewer Mail #1", his voice doesn't change at all. Humorously enough, neither does his body language; he manspreads when he sits down, and complains about how out of shape he is, as though he still has his normal (very overweight) figure.
• Weird variant in the Jimmy Two-Shoes episode "Monster Mutt" when Heloise switches Beezy and Cerbee's minds around. Beezy plays it straight in Cerbee's body, but Cerbee makes deep woofs when in Beezy's body instead of his usual high pitched barks.
• In The Fairly OddParents! episode "Presto-Change-O", though you could just say it was due to the magical way they switched bodies.
• Shown in the Futurama episode "The Prisoner of Benda", in which virtually the entire cast, plus a washbucket and an Emperor, switch bodies but retain their voices. It's necessary, though, since the sheer amount of body-swapping would confuse anyone if they didn't keep their original voices, especially considering that at least three of the characters switching are played by Billy West. Additionally, it may only be audible to the audience, since the characters still need to tell each other who's who. However, it is worth noting that even without the voices switching, sharp-eyed viewers can see that each character does subtly change their body mannerisms to match the current mind. It's easiest to notice when Zoidberg is doing his signature crabwalk in Fry's body.
• Men in Black: The Series:
  • One episode has Kay turned into a baby but retain the same voice. This isn't just for the audience — he sounds the same to all of the characters, which Frank finds weird.
  • Another episode takes this trope to its logical conclusion when Zed's brain is removed and the disembodied brain talks with Zed's voice.
• The Owl House:
  • In "Once Upon a Swap", when Eda performs a body swap spell on herself, Luz, and King, they still speak with their own voices, as well as have changes in their facial features. The same goes for other characters who end up swapped later in the episode. Interestingly, when they are changed back, they are wearing the same things they wore in the other's body, suggesting that the spell might not have switched the minds so much as transformed their bodies.
  • Zig-zagged when it comes to illusion spells. In "Labyrinth Runners", members of the Emperor's Coven use illusions to disguise themselves as other people which includes their voices, but a few episodes later in "Clouds on the Horizon" Eda uses a concealment stone to disguise herself as Raine but is told it won't change her voice, and when Gus disguises Luz and Hunter as each other neither of them talk. This could be justified as changing appearances and voices being two separate spells, and Gus was shown looking tired afterwards since he was casting other spells at the same time.
  • Zig-zagged again with Belos' possessions. In "Thanks to Them", Hunter initially speaks with his own voice while possessed, but then Belos' voice is layered over his until either Belos taunts Luz or Hunter starts fighting back. In "For the Future" when Belos possesses Raine, they still talk with their own voice since he doesn't want to give himself away to the Collector.
• Phineas and Ferb: In the switch-a-roo episode "Does This Duckbill Make Me Look Fat?", Candace and Perry switch bodies. Cue Candace being able to talk and sound like herself in Perry's body and "Perry the Teenage Girl" chattering.
• Subverted in Jonny Quest: The Real Adventures: Jeremiah Surd performs a "neural cyber-transfer" with Race Bannon. At first, he talks in Surd's voice, but then when he explains how he plans to sneak up on and kill Dr. Quest, he clears his throat, then finishes his sentence in the voice of Race Bannon, hammering home how perfect his possession of Race's body is. Race-in-Surd's-body talks like Race but with a noticeable electronic echo, representing the breathing apparatus Surd's crippled body uses.
• Superman: The Animated Series: When the Parasite absorbs Earl Garver's personality, Garver takes control of the Parasite's body and talks in his own voice. Makes sense, since the Parasite already demonstrated the ability to copy the voice of a person whose energy he drains.
• Gravity Falls:
  • When Mabel is possessed in "The Inconveniencing", she has the voice of the ghost controlling her.
  • Lampshaded in "Bottomless Pit!" when Dipper uses a potion to change his voice and Mabel immediately attacks the "body-stealing warlock" who she assumes is possessing her brother.
  • The body-swapping in "Carpet Diem" gives each body the voice of the mind inhabiting it. It even applies when humans are possessing animals.
  • Played with whenever Bill Cipher takes over someone else's body. When the audience is shown the possession occurring (as happens to Dipper in "Sock Opera"), the body speaks in Bill's voice, but none of the characters notice the difference. When Bill possessing someone is a surprise (Blendin in "Dipper and Mabel vs. the Future"), Voices Are Not Mental until The Reveal.
• Avengers Assemble:
  • The first episode features a brain/body switch between the Red Skull and Captain America. Both speak in their own voice (including the Skull's villainous German accent) when their bodies are switched.
  • In the Season 2 episode "Head to Head", each Avenger’s mind and voice ends up in the body of another member of the team.
• In the 3-2-1 Penguins! episode, "Invasion of the Body Swappers", Zidgel's and Kevin's voices switch when they switch bodies.
• The Simpsons:
  • In the "Treehouse of Horror IX" story "Hell Toupée", Snake Jailbird gets executed and Homer gets his hair in a transplant; when it possesses him, Homer speaks in Snake's voice.
  • In "Holidays of Future Passed", Lenny and Carl are revealed to have switched bodies with each other in the future, resulting in Lenny speaking in Carl's voice and vice versa.
• The Boondocks: In the episode "Stinkmeaner Strikes Back", Colonel Stinkmeaner possesses Tom DuBois, and Stinkmeaner's voice is heard whenever he takes direct control of DuBois. Humorously enough, both characters share the same voice actor, Cedric Yarbrough.
• Star vs. the Forces of Evil:
  • When Ludo is possessed by Toffee, he speaks with the latter's voice. Later on, Star finds herself also possessing Ludo, causing him to speak with her voice.
  • In one episode, Eclipsa switches bodies with Rhombulus, which also switches their voices.
• Steven Universe:
  • Gems can shapeshift their bodies radically — Amethyst has become things such as a pro wrestler, a horse, and a helicopter — but they don't, and apparently can't, change their voices (any more than a human could). Even when Amethyst disguises herself as Jasper, she just does a bad impression of Jasper in her own voice. Pink Diamond permanently, radically changing her Shapeshifter Default Form didn't change her voice, either.
  • Gem fusions usually have unique voice actors, but unstable ones instead have the components' voices layered on top of each other.
  • Sometimes fusions will end up Talking to Themself when their parts are out of sync, usually before defusing. When this happens to Alexandrite in "Fusion Cuisine", we hear Alexandrite's voice overlapping with that of whoever is out of sync (e.g., Pearl finding food disgusting when Amethyst wants to eat). When Garnet nearly defuses in "Keeping It Together", she still speaks in her own voice but switches between Ruby and Sapphire's style of speaking as each gives different reactions to what they saw.
  • White Diamond can take over the bodies of other gems, which causes them to speak in her voice.
  • However, Voices Are Not Mental for Steven, both when shapeshifting and when he possesses someone.
• Jacob Two-Two: In the "Freaky Friday" Flip episode "Jacob Two-Two and the Big Brain Exchange", Jacob and Principal Greedyguts switch bodies, and naturally end up talking with each other's voices as well.
• The Crumpets: In the episode "The Mix-Up", Ms. McBrisk and T-Bone accidentally swap bodies from use of an Electronic Telepathy machine. Their voices swap as well, and this is between a human and a dog.
• Played with in the Spliced episode "Whirrel Call". When Entree switches bodies with a whirrel (whale-squirrel), he hears himself speaking in his own voice while in the whirrel's body, but other characters only hear whirrel noises from him. On the other hand, the whirrel in Entree's body speaks in a slow, low-pitched voice very unlike Entree's natural voice.
• All Dogs Go to Heaven: In the episode "Mutts Ado About Nothing", Annabelle puts Charlie and Itchy's souls into each other's bodies to punish them until they show a little kindness and understanding toward each other. Their voices go along with the personalities they end up with.
• Teenage Mutant Ninja Turtles (1987): In "The Old Switcheroo", an accident at a lab causes Splinter and Shredder to switch minds during a fight with each other. While trapped inside their bodies, Splinter and Shredder still have their real voices when they're talking in thought, but they have the opposite voice when talking out loud.
• Donkey Kong Country: Lampshaded in the episode "The Big Switch-a-Roo", in which Donkey Kong (having swapped bodies with a robot) sings the below line in the Once per Episode song "Metal Head". This trope also applies to Candy and Klump, who also get body-swapped.
  I'm not light on my feet, I clank and I squeak
  But my voice is the same when I speak?
• The Life and Times of Juniper Lee:
  • A variation. When June has to attend to a dispute, she uses a spell that changes Ray Ray into a double of her and Monroe into a double of Ray Ray so that no one will notice her absence. They initially retain their own voices and June has to use a separate spell to change their voices. Interestingly, despite Ray Ray and Monroe then being voiced by June and Ray Ray's respective voice actors Lara Jill Miller and Kath Soucie, Soucie voices Monroe in Ray Ray's guise with the same Scottish accent that Carlos Alazraqui uses for Monroe, while Miller voices Ray Ray in June's guise with a scratchier and boyish-sounding voice similar to Soucie's take. The characters both have to actively try to change the tones of their voices while talking to others.
  • In another episode, when June and Ray Ray use a magic gel to disguise themselves as office workers to infiltrate their enemies, it’s specifically stated that the gel doesn’t change the voice, so they have to be quiet to maintain their cover. They end up being caught when Ray Ray speaks and they notice his voice doesn’t match his disguise.
• In the Zig & Sharko episode "Me, Myself and I", the two title characters switch bodies. While there is zero dialogue (like the rest of the series), you can still hear noises like grunting and laughter (especially laughter with Zig) of the original body.
• Rolling with the Ronks! plays this straight in "Body Swap", with Flash in Mormagnon's body voiced by Tom Kenny, Mormagnon in Flash's body voiced by Charlie Adler and other mind swaps also having the involved character speaking in the voice of whoever's brain they have.

Real Life

• Larynx transplants have been possible since 1998, and in at least one case, the recipient sounded like he did before his own larynx was crushed, rather than sounding like the donor. This is due to the larynx being like the mouthpiece of a brass instrument. All mouthpieces sound about the same alone, but the sound quality changes drastically depending on whether it's attached to a trumpet or tuba. In this case, the entire human head acts as the actual 'instrument'. Thus, voices are partly 'mental' in the sense that they're head-related.

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