[[quoteright:350:[[WesternAnimation/ToyStory http://static.tvtropes.org/pmwiki/pub/images/toystory3-03_9362.jpg]]]]
[[caption-width-right:350:Nothing suspicious here!]]

->'''Woody''': Oh, hi Buzz! Why don't you say hello to the guys over there?
->'''Buzz's severed arm''': Hi ya, fellas. To infinity and beyond!

Let's say we have Bob, Carol, and Alice. This trope is for when Bob is pretending to have a conversation with Alice, even though Alice isn't actually there (or in certain cases may not even exist). The purpose of this is to convince Carol that Alice is actually there, to maintain some lie Bob is pulling. Bob may do this by holding a one-sided conversation with "Alice", or he may even attempt to imitate Alice's voice and hold ''both'' sides of the conversation. Depending on the situation, this may involve Bob actually partially/fully disguising himself as Alice to further the ploy.

May also involve that [[PaperThinDisguise character changing clothes]] or seating positions to further the absurdity of the one-sided conversation.

Can involve a PaperThinDisguise. When done while on the phone, this is a PhoneyCall. Can overlap with ButHeSoundsHandsome (where Bob is actually pretending to be Alice, and then talks about himself). Not related to TalkingToHimself, surprisingly, which refers to RealLife voice actors playing multiple characters.


* ''Comicbook/AstroCity'': used by Atomicus, who developed a power to duplicate himself and almost immediately used it to try to conceal his (rather obvious) secret identity.

[[folder: Film -- Animated]]
* ''WesternAnimation/ToyStory'': Buzz Lightyear, who originally believed he was the ''real'' Buzz, has [[HeroicBlueScreenOfDeath gone temporarily insane after having his worldview shattered when he found out he was just a toy]]. His (toy) arm gets broken off in attempt to fly; later, he throws the dismembered arm at Woody in anger. Woody has to convince the other toys that Buzz is okay. He hold's Buzz's arm out from behind a wall, as if Buzz was actually standing just behind the wall, and proceeds to (badly) mimic Buzz's voice while waving the arm around.
-->'''Woody''': Oh, hi Buzz! Why don't you say hello to the guys over there?
-->'''Buzz's severed arm''': Hi ya, fellas. To infinity and beyond!
-->'''Slinky''': Hey look! It's Buzz!
-->'''Woody''': ''[Shaking the arm's hand]'' Yeah, hey Buzz. Let's show the guys our new secret best-friends hand shake. Gimme five, man! ''[Pantomines with arm]''
-->'''Hamm''': Something's screwy here.
-->'''Woody''': So, you see? We're friends now, guys! Aren't we, Buzz?
-->'''Buzz's severed arm''': You bet. Gimme a hug! ''[Woody makes the arm grab his neck and pull him forward in a hug]'' Ha, ha, oh, I love you, too.
-->'''Slinky''': See? It ''is'' Buzz. Now give back the lights, Potato Head.
-->'''Mr. Potato Head''': Wait just a minute. What are you trying to pull?!
-->'''Woody''': Nothing!
-->''[Woody innocently shrugs and throws both his hands up...exposing the severed arm.]''
* ''WesternAnimation/{{Megamind}}'': Megamind has a disguise hologram that makes him look like a normal human. At one point, though, he's in a situation where he has to pretend to be both simultaneously. There's a "fight sequence" between the two, where Megamind ends up repeatedly switching back and forth between his normal appearance and the hologram, all the while opening and closing a door over and over to give the appearance that that two are fighting each other.
* The [[PixarShorts Pixar short Geri's Game]], Geri plays both sides of a game of Chess, getting up and switching sides of the table to do so. He acts out both parts, including feigning a heart attack and tricking the other into thinking he's lost. The [[PaperThinDisguise difference between them]] is one has glasses and the other doesn't.

[[folder: Film -- Live Action]]
* In the final segment of ''Knowhutimean? Hey Vern, It's My Family Album'', Ernest P. Worrell recounts the experiences of his ancestor, Davy Worrell, who is chased by Indians into a high-walled fort...that happens to be empty. Realizing that the Indians now have him surrounded, and will kill him if they get through the gate, Davy attempts to scare them off by pretending the camp is fully defended, doing multiple voices and holding several conversations among himself. HilarityEnsues.
* ''Film/MrsDoubtfire'': Daniel receives an unexpected[[labelnote:*]]She had an appointment, but he obviously forgot[[/labelnote]] visit from his caseworker, whilst dressed as Mrs. Doubtfire. Mrs. Doubtfire claims to be Daniel's older sister, says she'll go get Daniel, and then runs into a backroom. While getting out of his Mrs. Doubtfire costume and makeup, Daniel loudly holds both sides of their conversation, and then calls to the caseworker that he just got out of the shower.
* ''Film/YoungFrankenstein'' has an inverse example: in order to disguise a dead body, the title character pretends the arm of the dead man is his own.

[[folder: Literature]]
* In one AgathaChristie book, ''[[spoiler: They Do It With Mirrors]]'', an accomplice does this to help the murderer establish his alibi: the murderer and the accomplice go into an office, and then the accomplice fakes both sides of an argument, loud enough for those outside to hear, while the murderer slips out a back way and commits the crime.

[[folder: Live-Action Television]]
* The BritCom ''Sykes'' has an episode where the eponymous Eric pretends to be his own sister to try and fool a criminal uninvited guest (played by Creator/PeterSellers) who claims she once promised to marry him. There are a couple of scenes where Eric has to hold rapid-fire conversations with himself while changing clothes out of sight.
* In one episode of ''Series/{{ALF}}'', the titular character manages to get himself into a situation wherein he has to (vocally) play the role of a [[ItMakesSenseInContext hostage-taker]] as well as a ''whole bunch'' of hostages.
* Two different sitcoms, ''Series/{{Benson}}'' and ''Series/{{Amen}}'', had the title character defending themselves in court, only to call ''themselves'' to the stand. In the ''Benson'' example, Benson is told to quit the antics rather quickly, but on ''Amen'', Deacon Frye carries on, sitting on the stand, leaping up to accuse himself of something, sitting back down to get upset, jumping up again, etc., until the opposing council is forced to shout "Your honor, he is [[CantBelieveISaidThat badgering the witness]]!"
* The hostage variant was done earlier in an 1983 episode of the Finnish cop sitcom Reinikainen [[http://www.youtube.com/watch?v=w4WP1-fwvd8]][[http://www.youtube.com/watch?v=84nPHdu7UPk]][[http://www.youtube.com/watch?v=nMCWtaGb93w]] where a burglar of thousand voices pretends to be holding a number of Finnish celebrities hostage in a cottage he just robbed.
* In the Creator/AdamWest ''Series/{{Batman}}'' series, Batman and Bruce Wayne [[http://www.youtube.com/watch?v=tgCkmUS1IYI have a phone conversation]].
* Done hilariously in ''Series/TheBigBangTheory'', when Leonard, as part of an angry rant to Sheldon about his relationship troubles with Penny, fakes a conversation, giving her a classic DumbBlonde AlphaBitch voice. This is the result:
-->'''Leonard:''' I mean, what's she expect me to say - sure, Penny, have as many weird ex-boyfriends stay around as you like!\\
'''Leonard (as Penny):''' Okay like, sure Leonard, because, like I'm Penny, and I'm doing you a favor just by being with you (*the "conversation" continues in this vein for a while*)\\
'''Sheldon:''' Leonard, stop the car. STOP THE CAR. (*gets out tearfully*) I can't listen to the two of you fight anymore!
* Attempted in an early episode of ''TheSuiteLifeOfZackAndCody''. One twin had to convince the babysitter they were both in the bathroom while the other was sneaking off for the latest Wacky Hijink.
* In the show ''GoodLuckCharlie'', during the episode "Appy Days," Teddy tricks both her mother and Ivy's mother into letting them both go to a senior party by recording a conversation on her phone and playing it back so it appears their mothers are giving their approval.
* In ''Series/TheBleakOldShopOfStuff'', AmoralAttorney Skulkingworm does this while "consulting with his client"; he wears two different top hats and discusses the case with the mirror. There's no one present who needs to be convinced they're seperate people, though, he's just crazy.
* For the [[https://www.youtube.com/watch?v=LqPW591Xfaw final episode]] of WhatsMyLine in 1967, John Daly was both the host and the mystery guest.
-->'''Bennett Cerf''': Are you possibly impersonating yourself, Mr. Daly?
** Wally Bruner was known to do this as well on the syndicated edition, as did Eamonn Andrews on the 1950's BBC version.

* In ''Theatre/TwelfthNight'', Feste fakes a conversation between himself and "Sir Topas the Curate" outside Malvolio's cell.

[[folder: Western Animation]]
* ''TheSimpsons''
** Homer tries to withdraw his and Marge's life savings from the bank. The banker insists that he needs both of their signatures.
--->'''Homer''': I'd like to withdraw my life's savings, please.\\
'''Teller''': Uh, sir, this is a joint account. You'll need your wife's signature, too.\\
'''Homer''': Oh, yes, of course. She's, uh, behind that plant. Hello, Marge. [''ducks behind plant''] Hi, Homey. [''as himself''] Sign this, please. [''as Marge''] You're the boss. [''as Lisa''] Daddy, ask the man for some candy. [''as himself''] Now, now, no candy for you. [''as Lisa''] Well, at least get some candy for yourself. [''walks back to the teller''] Heh, heh, heh, kids.\\
'''Teller''': [''sighs''] Here's your candy.\\
'''Homer''': So long, sucker!\\
'''Teller''': Uh, sir? Your life savings?\\
'''Homer''': [''nonchalant''] Ah, yes, I see that it's in bill form. Excellent.
** In another episode, Bart gets caught by Marge and Homer doing something he shouldn't. He says that Marge gave him permission, and since he thought she wouldn't remember, he took the liberty of recording the conversation. He plays it back, and it's obviously Bart doing an impression of Marge.
--->'''Marge''': That's not my voice!\\
'''Homer''': Oh, everybody says that when they hear themselves.
* In the ''Sidekicks'' animated show, one episode focused on "Super Mother's Day". Maximan's Maximom wanted to spend the day with him, but since Maximan is missing, Eric tries to cover it up. At one point, he creates a Maximan dummy and props it across the street, with Trevor using the dummy as a puppet to wave and talk to Maximom. Unfortunately they somehow didn't think that Maximom would try to cross the street to go see him.
* ''WesternAnimation/FamilyGuy'': Stewie pretends to be a girl in order to get on his favorite TV show, Jolly Farms Revue. When a girl he has a crush on comes over to meet his girl persona, he quickly goes to change into his girl costume while he ''argues'' with himself, pretending to be both Stewie and the girl. And then [[OverlyLongGag does the same thing in reverse]] later.
* In season one of ''WesternAnimation/TheCritic'', Jay often does this by pretending to be his secretary with British nanny accent. He doesn't do this gag anymore since Alice appeared in season 2.
* BugsBunny does this twice to fool his antagonists, in "Racketeer Rabbit" and "Bugs And Thugs."

[[folder: Web Original]]
* In Website/ThatGuyWithTheGlasses's 2nd year anniversary, WebVideo/{{Kickassia}}, the Molassian president has a conversation with his Foreign Relations officer. They are the same guy in different attire.
** Of course, if you look at the [[http://www.molossia.org/generalinfo.html Molassia website]], the same guy plays at least five different roles in his government. He must do this constantly.

[[folder:Real Life]]
* There is an entire profession based on this. It is called ventriloquism.
* In WorldWarII, when they were about to be outnumbered and suspected their radio communication wasn't secure, pilots would sometimes have a conversation with each pilot using multiple callsigns to make it sound like there were many more of them then there actually was, hoping to spoof the enemy into breaking off to avoid the suspected (and nonexistent) large force of planes just over the horizon instead of starting a fight.