Woman: I've been waiting for you, Lisa.Alice has just met a man named Bob, who seems like a perfectly nice person — until he uses her name. To which Alice realizes and possibly responds, "I never told you my name." This trope is used to place suspicion on an otherwise ordinary character or to hint that there is more to the character than meets the eye. The person whose name is used does not necessarily have to notice; it could simply be a hint to the audience to pay more attention to the character who knew it without being told. It can also be used humorously, generally with subversions, such as Alice asking why Bob knows her name... and Bob revealing that Alice was wearing a nametag the whole time. This is also easily double subverted, if the nametag doesn't reveal the full name, although that tends to be in less humorous situations. A subtrope of Saying Too Much. Compare I Never Said It Was Poison, where a suspect incriminates himself by revealing confidential evidence only the person involved in the crime would know, and Spotting the Thread, where the spy is an impostor imitating someone Alice knows, instead of acting as a new person. The Inverted Trope is You Just Told Me, when responding to her real name is what reveals Alice's true identity.
Lisa: (gasps) How did you know my name?
Woman: Your nametag.
Lisa: (gasps) How did you know my name?
Woman: Your nametag.
— The Simpsons, "Lisa's Wedding"
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Anime & Manga
- In NEEDLESS, Mio sneaks her way into Cruz's team. Though he doesn't find out for sure she's a mole until Mio turns on them, Cruz quickly becomes suspicious of her when she calls him "Cruz" as opposed to "Yamada" (his nickname, which everyone in the team uses instead of his real name).
- A variant in Monster: Tenma realizes that a couple of policemen aren't what they seem when they address him as "Dr. Tenma" after he only told them his name and not that he was a doctor.
- JoJo's Bizarre Adventure:
- Enya Gail, one of Dio's most loyal followers, pretends to be an innkeeper in order to lure Jotaro and company in to be killed by the effect of her Stand, Justice. However, she inadvertently gives herself away by addressing Jotaro by his correct name, when in fact he had registered to the inn under a false name.
- In part 4, Kira tries to get Josuke to heal his wounds by posing as a victim in one of his own explosions. Josuke, however, quickly points out that it's incredibly odd that Kira would ask him to fix him up personally rather than call an ambulance.
Josuke: Anyone can see I'm a high school student. How the hell am I supposed to fix you? I can't even play pachinko dressed like this, which is a fucking pain. Do I look like a licensed medical professional to you? Huh? Or maybe ... You can see Crazy Diamond.
- In the Hoshiyomi filler arc of InuYasha, demons manage to get a photo of three of Kagome's friends from her backpack, and use it to create puppets of them in order to trick Kagome and Hojo into handing over the magic blade that their master needs. Kagome is suspicious to begin with, but her suspicions are confirmed when one of the three refers to Inuyasha by his name — which no one had mentioned to them.
- In Tiger & Bunny, during Jake and Kotetsu's fight, in a fit of rage, Jake calls the latter by his real name, something that he shouldn't have known. It clues in Kotetsu that Jake also happens to be a mind-reader.
- At the end of the English version of Pokémon 4Ever, the gang tell Professor Oak about their most recent adventure and Professor Oak notices Ash is unusually subdued. Ash tells him about the boy he befriended who went back to his own time and how Ash is worried they'll never meet again. Professor Oak reassures him that true friendships stand the test of time and that "I'm sure you and Sammy will be friends forever." After the video call is over and the group is rushing to catch a boat, Misty realizes they never mentioned Sammy's name to the Professor... Cut to Professor Oak in his lab looking through his old sketchbook and saying, "It seems like it happened only yesterday."
- In Dragon Ball Z, Goku greets Bulma's baby son as Trunks, as well as revealing Vegeta was the father, having met Future Trunks a few years ago. Bulma is surprised by his knowledge and asks how Goku knows this. Goku then realizes he wasn't supposed to reveal this due to possibly jeopardizing Trunks' existence, and covers up by saying he's psychic.
- In King of Thorn, one of the things that shakes Kasumi's trust in Marco and tips her off to the fact that he's not a regular patient like the rest of them is when she realises that he had referred to her by name, back before anyone had properly introduced themselves.
- In an issue of Justice League of America, Plastic Man in disguise was talking with Bruce Wayne and after a while, Bruce said his name. Plastic Man never mentioned his name and he and the group chased him and "Bruce" was revealed to be a telepathic alien with amnesia.
- Subverted in the miniseries Oracle: The Cure: Barbara never told Corey her name, but when she pointed this out, he reminded her that he had known her when he was a kid from her librarian days.
- A variation shows up Irredeemable, when the Plutonian refers to the Hornet's wife by name during a flashback. The Hornet had never mentioned her name to him, and realizes that he's spying on his teammates and may not be entirely trustworthy.
- In Usagi Yojimbo, Sasuke does this to Usagi, Jotaro, and probably everyone else he meets. When someone calls him on it, he just dismisses it - "You must have mentioned it earlier." In this particular case, it's because Sasuke is a powerful spellcaster and can read people's minds.
- Inverted in Ultimate Spider-Man when Spidey wakes up unmasked and surrounded by the X-Men:
Spider-Man: I want to put on the mask and keep it on! But every time I turn around, someone somewhere finds out I'm Peter Parker!
Jean Grey: We... Uh... We didn't know your name.
- Fifty percent of The Phantom Stranger's shtick is showing up out of nowhere and helping the protagonist out of a jam. The other half is casually and infuriatingly addressing the protagonist by name, even if they have never before met.
- In Turnabout Storm, shortly after Twilight Sparkle accidentally summons Phoenix Wright to her world, she addresses Phoenix by his name before he properly introduces himself to her. When he calls her out on it she hastily claims that she had a Namedar spell performed on him when he arrived. Though it could sound plausible enough, her hesitation and some of her future actions still make clear that something's up.
- In Make a Wish, the auror interviewing Harry after he has killed an assassin with accidental magic refers to him by his assumed name of "Mr. Black" despite the lack of an introduction. Harry comments afterwards to another auror on the team that "His technique was so calm and relaxed that I don't even remember telling him my name."
Films — Animation
- My Little Pony: Equestria Girls:
- In the first movie, Human Applejack delivers the exposition to who Sunset Shimmer is and why Twilight shouldn't mess with her. Twilight thanks Applejack and calls her by name. AJ then realizes she never told Twilight her name. (Twilight already had met the human Fluttershy and Pinkie Pie, so she already realized this is the human version of Applejack.)
- My Little Pony: Equestria Girls – Friendship Games: The human-world Twilight Sparkle is quite perplexed that everybody at Canterlot High School know her name and give her a friendly welcome. This is because they are already familiar with Equestria's Twilight Sparkle, whom visited them twice already. Her bafflement increases tenfold when the Humane Six calls her dog, Spike, by name too. By the time Principal Celestia also addresses her by name, she concludes with "This is getting ridiculous!"
- In Toy Story 2, when Woody first meets Jessie, Bullseye and Stinky Pete, he asks them how they know his name. They then show him all the merchandise from the old Woody's Roundup television show that they were part of.
Films — Live-Action
- In The Truman Show, Truman's attempt to drive out of town with his wife ends when an unknown cop tells them the road is closed. However, the cop then addresses Truman by name without ever being told his name or shown any ID. This immediately lets Truman know something is up.
- In The Sorcerer's Apprentice, Nicolas Cage's character does this to the young Dave. When Dave asks how he knows his name, Cage bursts out, "Because I can read minds!" After a beat, he says normally, "It's on your backpack". Though he was telling the truth the first time.
- Double Subversion in City of Angels. Seth calls Maggie by name and when asked points out that she's wearing a nametag. Later, she pulls off the nametag and it only shows her last name.
- Played with in a subtle moment early on in Red Eye, in which the villain ends up saying the name of the heroine's father in conversation with her and she doesn't notice that he'd just said a name she'd never told him. Probably a good many people in the audience didn't either.
- In Final Destination 2:
– You have to follow the signs... Kimberly.– How do you know my name?
- In The Rich Mans Wife, Josie (the wife in question) is being terrorized by her husband's killer, who is demanding an exorbitant sum of money from her and threatening to tell the police that she hired him to kill her husband (she didn't). She goes running to her ex-lover Jake, pleading for his help. He calms her down, assuring her that "Cole won't hurt you." She's grateful, until she suddenly realizes that she never told him the man's name -Jake hired the man to kill her husband so that Josie would come back to him.
- Possibly subverted in Thunderball when the Bond girl Domino demands to know how Bond knew that was her name (or rather, her nickname); he says it is on the bracelet on her ankle. The "possible" part is that it's not clear he hasn't read up on her already, since the reason he is in the Bahamas is following a lead about her recently murdered brother, though it didn't lead to her directly..
Domino: My my, what sharp eyes you have.
Bond: (as she walks away) Wait till you get to my teeth.
- In The Prophecy, Gabriel confronts Thomas as he's sitting in church. When Thomas questions how Gabriel knows his name, Gabriel dismissively tells him "You look like a Thomas." Gabriel does this many times. One of the more humorous times, he calls a waitress "Madge" — she reflexively looks down to see if she was wearing a name tag — she wasn't.
- In The Count of Monte Cristo, Mercedes realizes the Count's true identity when she points out that he told her: "Edmond Dantes is dead," even though she had never mentioned his last name in their earlier confrontation.
- In Invasion of the Body Snatchers (1978), Matthew desperately calls the police when the pods start growing in his backyard. They reply with his name before he gave it, leading him to suspect that the authorities are all pods.
- Variation in Olympus Has Fallen. Secret Service agent Mike Banning runs into another survivor of the attack on the White House and fellow Secret Service agent who claims he's been hiding out the whole time. In their conversation the survivor mentions the villain's name...something Banning only was recently told by the impromptu government leaders he's in contact with and was only recently found out, and correctly deduces that the survivor is in fact a traitor working with the White House attackers.
- ''There's Something About Mary:
- Once Pat stalked Mary and gathered enough information on her, they eventually meet. Pat tells her he knows her name, which leads the viewer to believe he is going to mention the stalking.
Mary: So what's your name?
Pat: Pat Healy.
Mary: Wanna know mine?
Pat: I already know it, Mary.
Mary: How'd you know that?
Pat: Because it's right there on your golf bag.
- Ted is confused on how Dom knows about the zipper incident, since he never told him. Dom does a Hand Wave to this by saying he only lived four towns away. This seems like a minor throwaway moment, but comes back later when Dom is revealed to be "Woogie", Mary's high school boyfriend prior to meeting Ted, which also shows how he knew about said incident.
- Once Pat stalked Mary and gathered enough information on her, they eventually meet. Pat tells her he knows her name, which leads the viewer to believe he is going to mention the stalking.
- In the original The Nutty Professor, when Professor Kelp first transforms into Buddy Love, he meets up with Stella and calls her by name — when she insists she hadn't told it to him, he claims it's ESP. When someone calls him "Buddy" moments later he calls ESP again (though this is where he picks up the name for his new persona).
- A variation played for laughs in Now You See Me. Merritt tries to invoke this trope by guessing Henley's name right on their first encounter only to be exposed by Atlas who notes that the name was written on her coffee cup.
- Extreme Measures: As a doctor and several homeless men try to evacuate a desperately ill man from underneath a subway station, they are confronted by two mooks Impersonating an Officer, who order them to drop the man and come forward. They comply, until one of the men, says "Let's go, Doc." The doctor in question freezes in terror—despite repeatedly insisting that the ill man needed to be taken to the hospital, he never identified himself as a doctor—and realizes that the guys aren't cops.
- In both the book and film versions of The Shining, there is a scene towards the beginning where Hallorann the cook calls little Danny Torrance "Doc", his parents ask how Hallorann knew they call him Doc, and Hallorann answers by saying Danny just looks like a Doc. The real reason, of course, is that Danny and Hallorann both share a psychic ability—"the shining".
- There's a variation in the mystery novel Say It With Bullets by Richard Powell. The hero is talking to a woman he has just met when she reveals she knows exactly when his birthday is. He is immediately suspicious of her, but it turns out she had met him and had a crush on him when he was 16 and she was 12.
- In Carpe Jugulum when Agnes meets Vlad he says her name without being told. When she considers that he might have asked someone Perdita asks her why anyone would ask for her name.
- In Unseen Academicals, Glenda is talking to someone she thinks is Lady Margolotta's librarian. That she knew Glenda's name without being told (either because she's a vampire or just because Vetinari told her) is one of the clues that tips Glenda off to who she really is, after she's already left.
- Making Money contains one as well, from Moist to an old accomplice, thus spoiling his denial of being Albert Spangler.
- Played with a little in one of the books of The Riftwar Cycle. Erik von Darkmoor is approached by a friendly man, whom he has never met, but who calls him Erik. When the man switches to calling him "von Darkmoor" instead, Erik's squadmates stick a knife in his back. When Erik asks how they knew this man was up to no good, the squadmate says that the man might have overheard "Erik" somewhere, but everyone was under strict orders not to use the name "von Darkmoor".
- In the Children of the Red King series, Alice Angel knows Olivia's name immediately when she and Charlie walk into her shop, and uses it repeatedly. It doesn't say much for Charlie's character that he doesn't think anything is wrong until Alice also says his name. It turns out that, unknown to them Alice is Olivia's next door neighbour, godmother and self declared guardian angel and a friend of Charlie's Uncle Paton.
- Artemis Fowl: When Artemis first kidnaps Holly, he calls her "Captain Short". When she demands to know how he knew her name and rank, he points out that she's wearing a name tag... except, as Holly next points out, the name tag is written in the fairy alphabet, which Artemis shouldn't be able to read. (As it happens, Artemis had stolen a copy of the fairy Book and deciphered their language.) Invoked Trope since Artemis did this on purpose, knowing she'd notice the "slip" — and that she would understand the significance of how he knew.
- A variation occurs in Nuklear Age when Superion mentions the name of Atomik Lad's girlfriend to him, when Atomic Lad had been careful not to mention her name around Superion because he already distrusted him; this incident only heightens that distrust.
- Occurs in the Ciaphas Cain short story Sector 13. Cain identifies a Genestealer hybrid when it refers to him by name before he introduces himself; he'd told his name to another hybrid, and 'stealers communicate telepathically.
- In the YA novel The Third Eye, clairvoyant protagonist Karen is walking to her job at a day care center when a woman stops to offer her a ride, saying that she's affiliated with the same center and recognizes Karen. It isn't until the woman addresses her by her name, which she hadn't mentioned, that Karen realizes she's being kidnapped.
- Similar to the double-subversion example at the top, in Wizards's First Rule, Richard realizes that a person is actually a shapeshifter when they only know Zedd by his nickname, which Richard mentioned. Richard challenges it to say Zedd's full name, it realizes the game is up and attacks, and Richard fights it off.
- At their first meeting in The Will Be Done Praen knows Myssia's full name, and calls her as such, despite not having been told of it.
- Becomes "I never told you her name" in an issue of Perry Rhodan, which mostly narrates the life story of the renegade mutant and major plot arc antagonist Boyt Margor by employing the framing device of having him tell it to a woman he's just met and feels an affinity for. It's when his listener lets slip the real name of a girl he only ever referred to by a nickname and who belongs to a trio of mutants who've recently given him trouble in turn that he starts to suspect that she may actually be working for them instead — and whatever the truth of the matter may be, it doesn't end well for her.
- Spaced played with this in their Homage (of sorts) to The Matrix. With the agents grilling Brian at the front door when they were looking for Daisy.
- In the Firefly episode "Trash", Mal is introduced to a pilot friend's new wife- who is a con artist that Mal has previously had a rather severe run-in with. They commence fighting, and the pilot demands to know what's going on. Mal shouts accusations at her, to which she responds "You're a liar, Malcolm Reynolds!" The pilot had never told her Mal's full name.
- One episode of NCIS features a variation. A potential love interest of McGee visits him at work ... except he never told her he was with NCIS.
- On one episode of The X-Files a character gives himself away with this trope but he's talking so fast that the audience might not notice until Mulder stops him, saying, "Whoa, whoa, wait a minute here...When did I say my name was 'Agent Mulder'?"
- In the Stargate SG-1 episode "Window of Opportunity", Jack confirms that Malakai is also in the time loop when the latter uses Carter's name, despite not having been introduced to her in the current loop.
- In the Stargate Atlantis episode "Common Ground", Sheppard is captured by Kolya, who allows a captive Wraith to repeatedly feed on him. When Sheppard is thrown back in his cell, the old man in the next cell tries to make some idle chat until Sheppard realizes that he never introduced himself. The "man" admits that he heard his name when he fed on Sheppard.
- A variant occurs at the tail end of the Castle episode "Sucker Punch". Beckett realizes a suspect she has just released was in fact the killer of both the victim of the week and her own mother, because he used "her" in reference to her mother. Beckett had mentioned a Death by Origin Story during an interrogation, but not the gender of the person she lost.
- In Battlestar Galactica, Kara "Starbuck" Thrace realizes that Simon knows more than he should when he calls her Starbuck — she had only told him her real name, not her call sign. It doesn't end well for Simon (though being a Cylon, He Gets Better).
- In Angel this happens when Lilah propositions Faith to kill Angel.
- Once Upon a Time:
- Snow White figures out that Lancelot isn't who he claims to be, when he knows the name of Emma's son, Henry.
- Later Snow saves a woman and tells her how she herself was once saved, too — but she doesn't say Regina The Evil Queen was her savior. Yet the woman actually is Regina in disguise, and this trope is how she unintentionally reveals herself.
Snow: I never said it was her.
- A variation appears in the BBC miniseries Gunpowder, Treason & Plot, when one character realizes that his girlfriend is a spy for King James. He's been told not to refer to Guy Fawkes by his real name, but instead to call him "Johnson". He slips up in front of her, accidentally using the name 'Fawkes', and she doesn't call him on it. A few scenes later, when Fawkes reminds him to use the alias, he catches his - and the spy's - mistake.
- A variation in one episode of Bones — one victim is an old friend of Hodgins (who married Hodgins' former fiancée), and both parties agree to hide their former relationship. However, Booth catches that she knew Hodgins' first name was Jack despite Booth not using said name. The defense attorney for the killer finds out too, and it nearly gets the case thrown out for evidence tampering, because someone with a personal interest in the case had been involved with each step of the evidence gathering.
- In The Outer Limits (1995) episode "Lithia," the leader of a village in a post-apocalyptic all-female world who's witnessed tragedy when 12 men let out of cyberfreeze caused tragedy due to their aggressive nature puts the main male character back in stasis, and says "Goodbye, Jason" - even though he never told anyone his first name. It turned out that he was the love of her life before being frozen.
- Happens in Criminal Minds, when the woman who's been stalking Maeve the whole time comes out and calls Reid "Doctor". He doesn't realize until later that he was not introduced to her, either as "Agent" or "Doctor".
- How I Met Your Mother:
Lily: I can't believe Ted dragged me to the childhood home of some stupid bucklesmith no one's has even heard of.
- A variation occurs in when Lily is complaining to the Mother about some of Ted's road trip habits.
The Mother: Yeah, who cares about Florian von Otterloop?
Lily: I never told you his name.
- Later the Mother gives Marshall a ride and scares him by knowing facts about him that a stranger should not know. She explains that she met Lilly the day before and Lilly told her about the issues she and Marshall were having.
- Sherlock has a eureka moment in the episode "The Sign of Three" when a client refers to John as "John Hamish Watson" and wishes him to have a nice wedding, something she shouldn't have known. Only a select group of people would have seen John's middle name on his wedding invitation, leading Sherlock to realize that the Mayfly Man would be at John's wedding.
- In Hollyoaks, India Longford goes to meet up with her internet boyfriend, who unknown to her is actually serial killer Silas Blissett. Silas waits for her at the place where she'd agreed to meet Cameron; and asks her to help him carry something to his car. He then says "Thank you, India." An alarmed India says that she didn't tell him her name, at which point he reveals she did tell him - as Cameron. He then strangles her.
- Law & Order: McCoy is prosecuting a young woman who claims she was kidnapped and forced into a crime spree by her abductors—"I completely freaked out when he shot Willie and that other guy!" McCoy pounces on this, pointing out that although the man's name was indeed William, she couldn't possibly have known that "Willie" was the nickname he used unless she already knew him, thus revealing that she was indeed a willing participant.
- Power Rangers Dino Thunder has a rare example of a protagonist doing this; when the Rangers rescue Trent the first time he gets attacked by Mesogog's minions, Kira accidentally refers to Trent by name despite him ostensibly not hanging around superheroes. Trent catches this.
- In the pilot for Ironside1967, this trope is quoted by the girlfriend of the suspect after Ironside thanks her for providing information on his location.
- Bleak Expectations:
Pip: Whackwallop? Then you are a cousin to the Sternbeaters and Hardthrashers, and a natural ally of Mr. Benevolent!
- A variation gets spoofed: Pip meets Dr. Whackwallop, but fears he might work for Mr. Gently Benevolent, the Big Bad.
Dr. Whackwallop: Gently who?
Pip: Most reassuring.
- There's a similar gag the first time he meets one of the Hardthrashers, who addresses Pip by his full name while pretending to be a complete stranger and Most Definitely Not a Villain. It goes straight over his head that time, too.
- In Silent Hill 2, Maria calls James by name in spite of the fact that he never introduces himself. James never comments on this or responds to it in any way, and it's far from the only knowledge she should not have and yet does.
- In the English version of The World Ends with You, upon meeting Neku, Joshua uses Neku's name twice before actually being told by Neku himself. Used to hint that Joshua is more than he seems, as he later ends up being a very significant character.
- In Xenogears, after being exiled from his village, Fei encounters a woman in the forest who is later knocked unconscious prompting Fei to yell "Keep your hands off Elly!". Later on she introduces herself and her name is in fact Elly. There is a really complicated reason for this.
- Are you part of an MMORPG RP Community? Expect this. The real reason is that people can have multiple characters, so Alice might know Bob well on his warrior character but not be aware that he also has a monk until Bob introduces himself while playing the monk. The in-universe, in-character reason, could be anything.
- In the original Japanese script of Fire Emblem Awakening, the Avatar knows Chrom's name the moment they first meet, even though they're suffering from amnesia and initially can't remember their own name. Chrom's lieutenant Frederick finds this very suspicious.
- In the English translation, the Avatar has already heard Chrom's name by this point. Oddly, Frederick acts the same way despite the trope no longer being in effect.
- Escape From Lavender Town is a game that knows your name. Without you ever entering it before.
- Bayonetta 2 has a very spoiler-y example at Chapter XVI. As Bayonetta and Balder (her father from the past, who she's already fought) escape a collapsing structure, they get to safety and Bayonetta lets slip Balder's name, which he never actually told her. When he gets suspicious, she ends up getting flustered and telling a very flimsy lie.
- Iris does it to Phoenix in the last case of Phoenix Wright: Ace Attorney: Trials And Tribulations. When Iris is confronted about it, five Psyche-Locksnote appear before her and the issue has to be dropped. It's not revealed completely until the end.note
- El Goonish Shive, "Painted Black" arc. After Elliot is captured, he refers to Guineas by name. Guineas then tells Hedge that Elliot knew his name even though he hadn't been told it. This causes Hedge to realize that Elliot must know Grace, who alone could have told him.
- In General Protection Fault, Trish, upon meeting Jason "Fooker" Barker for the first time, casually mentions that she once knew a Barker. Fooker is a bit suspicious that she knew his name when no one mentioned it before, and she most likely knew because she is from a parallel universe.
- Averted in Gender Swapped; Morgan gave the bouncer ID
- In Something*Positive, when The Pythagorean calls Spooky by name, Spooky says "Tell me, caped crusader, how'd you know my old nickname from conventions?" An Invoked Trope, since he knows perfectly well it's Mike and is just playing along.
- Occurs in the The Simpsons episode "Lisa's Wedding", where she's talking to a fortune teller at a Renaissance Faire:
- In the American Dad! episode "Particularly Desperate Housewife", Francine is trying to hide from the Ladybugs, who are after her for not cheating on her husband and whose membership consists of nearly every woman in town, and goes to the police station for help. She then has an Oh Crap! moment when the lady at the front desk addresses her by name when she never revealed it to her.
- In Batman Beyond: Return of the Joker, Tim Drake addresses the new Batman as "Terry", just before the reveal as Tim transforms into the Joker.
- Gravity Falls: Bill Cipher, as he's making his entrance:
- In the Johnny Bravo episode "The Sensitive Male", Sheldon addresses Johnny by name shortly after they first meet. Johnny asks him how he knows, but Sheldon says that is not important and then gives a musical number about how "Everyone Has Got a Name". Johnny mutters, "How do these people know my name?"