->''"He kept giving these line readings with all this inflection in them. I kept telling them that it had to be less, a lot less--like a robot. He kept saying it sounded so flat. Everybody else was looking at me too, and was asking me if I was sure. To them it sounded flat. I think it really sells it."''
-->-- '''Creator/BruceTimm''' on Michael Ansara playing [[AntiVillain Mr. Freeze]], in ''WesternAnimation/BatmanTheAnimatedSeries''.

Normally, people who are calm tend to speak in a clear, even voice that doesn't vary too much from word to word and is immensely reassuring to the listener. This isn't always a good thing, however. A perfectly monotone voice usually means just the opposite of sanity, safety, and cause for reassurance; usually, it means the speaker is mind-controlled, crazy, an impostor, or is being threatened with death. In these cases, the creepy monotone is a sort of GlamourFailure to clue in the hero that any of a dozen things may have just gone wrong.

Usually, the creepy monotone varies from a calm monotone in that no word or syllable is stressed ''at all'', even when they should be. This is the difference between saying "Oh hello!" and "Oh, hello." Even SpockSpeak sounds more natural and less unsettling by comparison. Contractions are often omitted, as are specific or explicit mentions of names and facts, depending on the cause of the monotone. Here are some common scenarios for the Creepy Monotone.

* ''"Yes, I am fine. I'll be even better once I load my gun, though."'' The character has just suffered a HeroicBSOD or one too many rounds of BreakTheCutie and/[[TranquilFury or]] is about to go completely [[BewareTheNiceOnes homicidally]] [[UnstoppableRage berserk]]. Usually paired with jittery motions, [[TwitchyEye twitching]], or a BrokenSmile.
* ''"Hello, do you have some raw meat?"'' One of the hero's friends or family has been [[DemonicPossession Demonically Possessed]], {{Brainwashed}}, or mind controlled via TheVirus and are exhibiting VirusVictimSymptoms. Usually, they're normal, except for odd behavior.
* ''"Good morning annoying sibling, I am your sister Melanie."'' An evil duplicate ([[ReplicantSnatching Robot]], [[CloningBlues Clone]], ShapeShifter, [[EvilKnockoff Doppleganger]], or what have you, even zombie/ghost possession/mind control) has replaced the character. Their tell will usually be not knowing names and facts about their host and friends, knowing ''too much'' about their host, assuring everyone that they are MostDefinitelyNotAVillain, or a [[NotHimself radically different personality.]] May be TooDumbToLive at things the real one, or even anyone without too much FishOutOfTemporalWater and minimal GenreBlindness, could do perfectly fine. A ''protagonist'' doing this, impersonating the ''hero'' while the hero is doing something else, is almost inevitably going to be the one that will be the most idiotic and provide either Fanservice or tons of Squick and FanDisservice.
* ''"Yes, dear. I'm fine. Please bring the MacGuffin to the HauntedCastle, won't you?"'' Hubby is being coerced by force to trick the hero into a trap, often includes an OutOfCharacterAlert to try cluing the hero in to their being kidnapped. "How is our [[BluffTheImpostor pet poodle Muffin]]?"
* ''"I am sorry. If it's any consolation, this likely won't hurt much."'' If a character is ''[[EstablishingCharacterMoment introduced]]'' with a creepy monotone, [[DevilInPlainSight then all bets are off]]. If you're lucky, they're just an EmotionlessGirl or TheStoic, but odds are they're an [[AIIsACrapshoot Evil A.I.]], [[TheSociopath Sociopath]], AxCrazy, or some other seriously dangerous character.

MachineMonotone is a SubTrope. You may wish to compare DissonantSerenity. Can make a very effective DeadpanSnarker. Compare TranquilFury and VoiceOfTheLegion.


[[folder:Anime & Manga]]
* Sawyer from ''Manga/BlackLagoon'' is AxCrazy, but speaks with a Creepy Monotone due to the fact that her voice box was damaged and she needs an artificial one to speak.
* In the last {{OVA}}, after being possessed by an evil doll spirit, Akane from ''Manga/RanmaOneHalf'' starts talking in a low monotone voice, even while ShowingOffTheNewBody.
* ''Anime/DigimonFrontier's'' Dark Trailmon. He's actually very HAL-inspired, in design and in voice. (Ironically, he's not ''evil,'' just creepy: you expect the Dark Trailmon that you meet in the Dark Terminal during a hallucination caused by Duskmon, the Warrior of Darkness, after he ambushed you and kicked your butt on the Dark Continent to be a little... dark.)
** Prior to that, ''[[Anime/DigimonAdventure Adventure]]'' had Machinedramon, who ''was'' dark.
** Many Nightmares from ''Anime/DigimonTamers'' came from J-Reaper, who was even darker.
* Legato Bluesummers of ''Anime/{{Trigun}}'' almost always spoke with a monotone (or simply very calm) voice.
** And then you find out that his English voice is ''[[Anime/RurouniKenshin Kenshin Himura]]'' of all people...
** Subverted in the manga: after being crippled by Knives for trying to kill Vash, he turns AxeCrazy, but still talks with the creepy monotone.
* Johan Liebert from ''Manga/{{Monster}}'' constantly speaks in a calm, quiet monotone as part of his DissonantSerenity.
* Paul von Oberstein from ''Anime/LegendOfGalacticHeroes'' has a trademark Creepy Monotone and is one of the grey characters of the series. While he has thrown his lot in with Reinhard, he also has his own goals and apparently has little need for the fellowship of the other admirals. [[spoiler:His actions lead to the death of Siegfried Kircheis, Reinhard's closest friend in an assassination targeting Reinhard.]] He is also a participant to the events that lead to [[spoiler:Oscar von Reuental's rebellion]], although he later exhibits something not unlike sympathy.
* In ''VisualNovel/HigurashiWhenTheyCry'', speaking in Creepy Monotone tends to show up in the main cast whenever things about the TownWithADarkSecret or Oyashiro-sama's curse start getting unearthed. [[spoiler:More specifically, those under the influence of [[HatePlague Hinamizawa Syndrome]] start ''imagining'' the people around them doing this, compounding their paranoia.]]
* The Anti-Spiral leader in ''Anime/TengenToppaGurrenLagann'', [[spoiler:and Nia when she's changed into an Anti-Spiral.]] Once the protagonists get the better of him, he snaps and starts getting HotBlooded.
* ''Manga/{{Naruto}}''
** Shino Aburame. ([[TheQuietOne when he talks, anyway.]]) Somehow, this makes him even creepier than being a living hive for 4 million insects would by itself.
** Gaara would fit this. Even after his HeelFaceTurn, he still retains his gruff-yet-emotionless monotone way of speaking. Old habits die hard, it seems.
** And Itachi Uchiha, whose voice, though not quite a monotone, stays very even whether he's chatting with his partner or predicting your death.
* Precia Testarossa from ''Anime/MagicalGirlLyricalNanoha'' is a Creepy Monotone speaker and just a [[PsychoElectro wee bit nuts]] on top of it.
* When Lilika in ''Anime/BurnUp Scramble'' uses her PsychicPowers, she gets MindControlEyes and speaks like this. Usually, she blurts out something embarrassing about Rio.
* Clare from ''Manga/{{Claymore}}'' speaks like this to emphasize her [[TheStoic stoic badassery]].
** Priscilla, rather more creepily, after she becomes [[OneWingedAngel an Awakened One]].
* Karasuma from ''Manga/SchoolRumble''.
* R. Dorothy Wayneright from ''Anime/TheBigO'' is monotone because she's an android (well, gynoid, technically). However, she is ''not'' {{emotionless|Girl}}, making it hilarious when she verbally abuses Roger in a calm, soothing voice.
-->"You're a ''louse'', Roger Smith."
* Rei Ayanami from ''Anime/NeonGenesisEvangelion''. She's practically the poster child for this trope, when she does talk.
** Though she still has noticeable subtle changes in tone if you pay attention. So it's not completely monotonic, actually. The Creepiness is up to the viewer to behold.
* Yuki Nagato from the ''LightNovel/HaruhiSuzumiya'' speaks in a monotone, though she's not really that creepy, especially when compared to [[UncannyValleyGirl Ryoko Asakura]].
* Dr. Stein the MadScientist in ''Manga/SoulEater'' speaks in a creepy monotone in the english dub. He keeps on doing it even after turning out to be a StealthMentor.
** Crona does this more notably, using this as a normal tone of voice. His/her voice becomes sing-song and [[AxCrazy insane]] [[spoiler:when his mind is snapped by Medusa]], complete with a SlasherSmile and {{Laughing Mad}}ness.
* [[BigBad Vincent Volaju]] of ''Anime/CowboyBebop: TheMovie''.
** Not to mention [[BigBad Vicious]].
* From ''Anime/YugiohGX'', Judai does this when he is [[spoiler:taken over by the [[SuperPoweredEvilSide Haou]].]] Well, in the Japanese version at least. The English Dub made literally no difference with his voice.
* YuGiOhArcV gave us Yuya's "Awakening". Half of the time he's screaming in rage. The other half is a monotone that basically says "die".
* Given that she's an EmotionlessGirl that drags people down to hell, Ai of ''Anime/HellGirl'' always speaks like this. The times when she doesn't is normally a time that you're REALLY screwed.
* In ''Manga/DeathNote'', L and Near are both prime examples of this trope.
* Morgana in ''[[Anime/DotHackSign .hack//SIGN]].''
* Both of Aiko's parents in ''Manga/VampirePrincessMiyu'' speak in very flat, unemotional voices and have very slow speech patters; this makes them sound ''horribly'' creepy, even when they seem to be very kind persons aside of this "detail". [[spoiler: This ''very'' subtly hints that they are actually DeadAllAlong.]]
** [[spoiler: Miyu]]'s father also speaks similarly in the flasbacks, which complements [[TheStoic his totally emotionless personality]] quite well. [[spoiler: This is because, after Miyu's mother bit him, he became an EmptyShell.]]
* ''LightNovel/{{Vamp}}'' has the character of Shizune, who is notorious for speaking with one of these.
* [[https://www.youtube.com/watch?v=a0jHmaoH_r8 Aizen's English]] voice from ''Manga/{{Bleach}}''; [[Creator/KyleHebert his VA, Kyle Hebert]] used HAL as an a inspiration.
* ''Manga/SgtFrog'': Kululu, who gets inexplicably high pitched when he gets particularly excited about something (usually terrible or destructive), which actually makes him even creepier.
** There's also the Keronian resonance ritual, which acts as a bonding ritual of caramaderie between fellow countrymen far from home, but to anyone else [[http://www.youtube.com/watch?v=8T_CVXG0iyA it sounds like a satanic cult initiation...]]
* Shigure of ''Manga/KenichiTheMightiestDisciple'' has NoSocialSkills due to a really awful upbringing (her own father ''never bothered to name her''; a friend of his finally did so when she was around 10), and what little dialogue she delivers is typically extremely flat. She, however, is distinctly not TheStoic; she just expresses her feelings with her body language and her actions.

[[folder:Comic Books]]
* Rorschach from ''ComicBook/{{Watchmen}}'' speaks in a low, growly monotone (other characters remark on its unsettling quality) with odd, near-{{Hulkspeak}} [[TerseTalker clipped sentences]]. "Yes. Good night. Remember it often." He has flashes of eloquence, too, which are unnervingly at odds with this style of delivery.
** His mode of speaking is shown by his unique speech bubbles, with no words ever '''bolded''' or ''italicised'' for emphasis like the other characters'. By contrast, his speech bubbles in flashbacks to before the [[DespairEventHorizon Blaire Roche case]] indicate a totally normal voice.

[[folder:Fan Fiction]]
* ''[[FanFic/{{Bird}} Bird]]'' features Charnel, who talks very calmly and evenly, and whom Taylor tends to find soothing. Then there is [[PowerIncontinence Mimi]] who can default to thus when under the influence of her power, described by Taylor as 'robotic'.
* In ''Ghosts of the Past'', sequel of ''Fanfic/ChildOfTheStorm'', [[spoiler: Maddie]] seems to have this, as part of her EmotionlessGirl and LivingWeapon shtick. She picked it up from her boss, Nathaniel Essex, who is described as very rarely showing emotion. Notably, as her HeelFaceTurn progresses, she starts doing this less and less.
* [[CreepyChild Fiona]] from ''FanFic/KiraIsJustice''.
* In ''Fanfic/TheVerySecretDiary'', based on Ginny's story in ''Literature/HarryPotterAndTheChamberOfSecrets'', Ginny has this voice while possessed, and it starts to bleed into her conscious voice.
* The robotic clones in ''Fanfic/CalvinAndHobbesTheSeries''.
* Rarity in ''Fanfic/PagesOfHarmony'' after Twilight [[MindRape Mind Rapes]] her into [[EmotionlessGirl being devoid of emotion to take Generosity]].
* ''Fanfic/AdviceAndTrust'': Rei's monotone voice is the result of being drugged to the gills on tranquilizers and mood suppressors. When she starts talking like this again after a long stretch of being more emotionally demonstrative than usual, Shinji and Asuka immediately realize that something is very wrong.
* ''Fanfic/NeonGenesisEvangelionGenocide'': Rei's voice is this. Her monotone voice unnerves Shinji because it reminds him of the death of the former Rei.

[[folder:Films -- Animated]]
* Andy gives us this lovely line in ''WesternAnimation/ToyStory2'': "I don't want to play with you anymore." It causes Woody to wake up screaming from the nightmare.
* AUTO from ''WesternAnimation/WallE'', who was based off of HAL 9000. (Helps that, at least in English, [[SyntheticVoiceActor it's actually spoken by a computer]].)
* In [[Film/HappyFeet]] there is a minor penguin character who sounds like a dead ringer for Hal 9000. He even calls main character Mumble "Dave".

[[folder:Films -- Live-Action]]
* In ''Film/MenInBlack'', the bug in the Edgar suit demands sugar water from Edgar's wife. OK, so his creepy monotone is very gruff and hostile-sounding, but that basically matches Edgar's pre-bug personality as well.
* Any and all characters in ''Film/SinCity'', including the heroes, have an extremely dry and calm manner of speaking, bordering on creepy monotone. This is exemplified with Marv, who always speaks in a soft, calm manner, bordering on the nonchalant, even when brutally torturing and murdering somebody. Roark Jr, before his run-in with Hartigan, speaks almost like HAL. After that, though, he's a lot more expressive.
* [=HAL 9000=] of ''Film/TwoThousandOneASpaceOdyssey'' speaks in an eerily calm and soothing voice, though he occasionally displays some emotions: prideful and even apologetic and, at the last, fearful, making him the most developed character in the film.
* Uncle Charlie from ''Film/ShadowOfADoubt''
* Bruno Anthony from ''Film/StrangersOnATrain''
* Hannibal Lecter from the ''Literature/TheSilenceOfTheLambs'' series. Anthony Hopkins based his performance on HAL 9000.
* Travis Bickle from ''Film/TaxiDriver'' often does this, especially when narrating.
* Reverend Harry Powell from ''Film/TheNightOfTheHunter''.
* Patrick Bateman from ''Film/AmericanPsycho''.
* Jonathan Crane in ''Film/BatmanBegins'' is this after he's been given a massive dose of his own fear toxin and Batman, who's already kind of intimidating, is interrogating him.
* After Selina Kyle is almost killed by her boss Max Shreck in ''Film/BatmanReturns'' for [[HeKnowsTooMuch knowing too much]], she repeats the same words that she said upon entering her apartment in a previous scene, only in a creepy monotone of the first variety: "Honey, I'm home. Oh, I forgot. I'm not married." This turns out to be a prelude to Selina's impending FreakOut and [[StartOfDarkness transformation into Catwoman]] later in the scene.
* Bart, a rogue cop in ''Film/SouthlandTales'' flatly insists on tagging along to a (fake) domestic disturbance with Taverner and Santaros and executes the couple on arrival. A creepy monotone delivered by Creator/JonLovitz is surprisingly unnerving.
* ''Film/ItCameFromOuterSpace'' (1953). The aliens who've [[VoluntaryShapeshifting copied human forms]] talk this way, severely flipping out the real humans who don't believe their repeated claims that they don't mean any harm.
** Not just monotone; these voices are like someone speaking inside a box; unnerving in the street or at home.
* ''Film/TwentyEightDaysLater'' has a variation, where a drugged Hannah is monotonously scaring the soldiers by telling them how Jim is killing them all.
* ''Film/FullMetalJacket'': "Seven. Six. Two. Millimeter.... Full... metal... jacket..."
* ''Film/NoCountryForOldMen'': Anton Chigurh speaks in a flat, emotionless manner, making him all the more scarier.
* Dr. Manhattan in ''Film/{{Watchmen}}''. In one scene, Ozymandias remarks that he knew that Manhattan still had feelings; they were just too subtle for others to notice. [[spoiler:[[ManipulativeBastard He uses this to his advantage.]]]]
* John Malkovich's character in the 2000 TV miniseries of ''Literature/LesMiserables'', perhaps as a result of trying to avoid any accent as he is not talking in his mother language.
* The citizens of Sandford in ''Film/HotFuzz'' do this after Nick Angel exposes their [[TownWithADarkSecret dark secret.]]
* The evil townspeople of "Nilbog" also do this in ''Film/{{Troll 2}}'' while trying to force the protagonist to eat a poisoned bowl of ice cream and, in the process, prove that even a creepy synchronized monotone can turn into hilarious {{narm}} (or maybe even disturbing kink) with the right line:
-->"Open your mouth, my little friend! Please, open it!"
* Raven in ''Film/CecilBDemented'' somehow manages to combine this with PerkyGoth to great effect.
* The robot GERTY in ''Film/{{Moon}}'' is voiced by a very monotone-sounding Kevin Spacey. In the end, [[spoiler:the trope is subverted as GERTY turns out to be mostly benevolent, going so far as to perform a HeroicSacrifice]].
* Cameron Vale in ''Film/{{Scanners}}''.
* "Max", the AI of the spaceship from ''Film/FlightOfTheNavigator'', speaks in a dull, robotic monotone at first. Then, after doing a scan of David's brain, abandons this trope when he accidentally picks up some human personality traits and starts sounding like a robotic Pee-Wee Herman (naturally, as Max is voiced by PaulReubens).
* Would-be presidential assassin Mitch Leary from ''Film/InTheLineOfFire''.
* Sy Parrish in ''Film/OneHourPhoto'' spends the majority of the film talking in a very soft-spoken, almost robotic monotone, reflecting his disturbing lack of a personality, although he does show emotion at times, especially near the end of the film when he starts to lose it.
* The aliens in the first ''Film/InvasionOfTheBodySnatchers1956'', when no real humans were around to fool. Such as "I put the pod in the baby's crib. Soon there will be no more crying."
* The nameless narrator in ''Film/FightClub'' sometimes slips into this, both in his narration and his dialogue in the film.
* Interestingly, Darth Vader talks like this in the first Hungarian dubbing of ''Film/TheEmpireStrikesBack'', even keeping up the emotionless tone during his dramatic confrontation with Luke. Nostalgic fans often cite this as their favorite Vader voice, but others claim it came off more as "reading a script" than "acting".
** Much later, Supreme Leader Snoke from ''Film/TheForceAwakens'' is introduced with a low and malevolent voice, coupled with a deep echo for extra chills. Physically his appearance looks ancient with a tone that can go from sinister calm, to bellowing frustration within a split second.
* ''Film/StarTrekIntoDarkness'' has the subdued [[Creator/BenedictCumberbatch John Harrison]] as its villain, employing a monotone which barely shows any emotion (other than anger). It's a contrast with the hammy Nero from [[Film/StarTrek the previous movie]], [[spoiler: and Ricardo Montalban's [[Recap/StarTrekS1E22SpaceSeed original incarnation]] of [[Film/StarTrekIITheWrathOfKhan the character]].]]
* ''Film/XMenApocalypse'': [[https://www.youtube.com/watch?v=XvXxwUiZ3yQ This is how Apocalypse sounds]] when he informs Professor X, "I'm here for you, Charles." The voice is quite chilling, and it forebodes that Xavier will soon be in ''really deep trouble''.
* J. Robert Oppenheimer's "Now I am become Death, the destroyer of worlds" dialogue concerning the creation of the atom bomb comes off as this partly because he was saying it for the non-dramatic documentary ''The Decision to Drop the Bomb'' and partly because of the grim subject matter.
** The voice of J. Robert Oppenheimer plays over the [[http://www.metacafe.com/w/11070179/ SDCC teaser trailer]] for ''Film/{{Godzilla 2014}}'', citing a partial quote after the [[http://en.wikipedia.org/wiki/J._Robert_Oppenheimer#Trinity Trinity]] [[http://en.wikipedia.org/wiki/Trinity_test test]]. It's also used to great effect in [[http://www.youtube.com/watch?v=GO4FCc15Ek8 this]] modified version of the official teaser trailer.
* [[BigBad The]] [[Creator/WernerHerzog Zec]] from ''Film/JackReacher''.
* The titular protagonist in ''Film/{{Lucy}}'',after gaining superhuman mental abilities, speaks in a matter-of-fact monotone, whether discussing human biology with [[Creator/MorganFreeman Morgan Freeman]] or torturing a drug kingpin.
* The Caller in ''Film/PhoneBooth'' rarely speaks in anything but a casual, matter-of-fact voice while he holds a man hostage with a sniper rifle. The fact that it's [[spoiler: Kiefer Sutherland]] speaking adds to the effect.
* The [[LittlePeopleAreSurreal Oompa-Loompas]] sing like this in ''Film/WillyWonkaAndTheChocolateFactory''.
* [[BigBad Dr. Phillip Decker]] from ''Film/{{Nightbreed}}''. Decker speaks in a calm, low, monotone register. He makes it seem like he does it because he wants to [[SoftSpokenSadist soothe]] his [[PsychoPsychologist patients]]. He's in fact an [[LackofEmpathy unempathetic]], [[SerialKiller murderous]] [[TheSociopath psychopath]].

* Mr. Jonathan Teatime from Literature/{{Discworld}} unnerves people with his creepy monotone.
* [[Literature/HarryPotter Lord Voldemort]] speaks in a calm, flat tone of voice; this, perhaps even more than his use of {{Soul Jar}}s and his utter lack of compassion, makes him terrifying. Except for when he gets agitated. It comes across more as him trying to achieve this trope but failing every now and again.
** As Crouch Jr. proved, people who have drunk Veritaserum (Truth Serum) also speak like this.
* The demon from the Creator/NeilGaiman short story "Other People" speaks in "a voice that carried with it no sorrow, no relish, only a dreadful flat resignation." It is utterly expressionless for all of the story.
-->"That's inhuman."
* Shane Drinion in ''Literature/ThePaleKing''.
* In ''Literature/TheStormlightArchive'', the man whom Lift calls Darkness has a calm, flat voice to match his completely [[TheStoic emotionless demeanour]], even while he's trying to [[DisproportionateRetribution lynch a young child]]. He turns out to be [[spoiler:Nale, the Herald of Justice, a TimeAbyss who's spent the last 4500 years WalkingTheEarth slowly going [[SanitySlippage insane]] because it was ''better'' than the hellish duties of the Heralds]]. No wonder Lift doesn't think he's even human.
* [[HumanoidAbomination Myrddraal]] from ''Literature/TheWheelOfTime'' have voices that are described as sounding like crumbling bone and are utterly devoid of emotion or inflection. Not only is this incredibly creepy, but it makes [[MouthOfSauron Shaidar Haran]], the only Myrddraal who ''does'' show emotion (because he's possessed by a "shadow", as WordOfGod describes it, of [[GodOfEvil the Dark One]]), even ''more'' disturbing by comparison.
** In the last book, the [[TheEmpire Sharan]] accent is described in this vein; a Sharan [[EvilSorcerer Ayyad]] [[spoiler: who is part of Demandred's army]] is described as sounding like "all the music was gone from her voice."
* AxCrazy valet Brinkley from Creator/PGWodehouse's ''Thank You, Jeeves'', though, like everything in the book, it's PlayedForLaughs.
--> ''Brinkley was at the door, begging me to come out and let him ascertain the colour of my insides; and by Jove, what seemed to me to add the final touch to the whole unpleasantness was that he spoke in the same respectful voice he always used. Kept calling me 'Sir,' too, which struck me as dashed silly. I mean, if you're asking a fellow to come out of a room so that you can dismember him with a carving knife, it's absurd to tack a 'Sir' on to every sentence. The two things don't go together.''
* In ''Literature/{{Murderess}}'', James, the boy from Chopped Tree Inn, talks like this when ''welcoming'' Lu. His mother quickly sends him away when he scares Lu too much.
* In ''Literature/ASongOfIceAndFire'', Lord Roose Bolton, being a devoutly [[TheStoic stoic]] SoftSpokenSadist, always speaks in whispers so faint that people have to lean close to hear him. His tone is constantly described as unsettling, emotionless and cold, as he believes that avoiding passion is the key to staying young.

[[folder:Live-Action TV]]
* In ''Series/BuffyTheVampireSlayer'', [[spoiler:Dark Willow]], when she snaps at the end of season 6 and goes on her RoaringRampageOfRevenge (or would it be "Creepy Monotonous" Rampage of Revenge?): "Bored now."
** What makes it even creepier is that the monotonous "Bored now" is the exact line used by an alternate version of [[spoiler:Willow]] wherein she was an evil badass vampire chick. [[spoiler:Dark Willow was basically her vampire double sans the vampire.]]
* ''Series/{{Dexter}}'':
** Subverted. Half the fun of most dialogues the title character takes part in resides in the way Michael C. Hall delivers his lines, in an emotionless creepy monotone that should trigger the "serial killer alarm" in the minds of even the most oblivious of the other characters. Except, of course, it never does. "Why, in a building full of cops - all supposedly with a keen insight into the human soul - is [[NotSoDifferent Doakes the only one that gets the creeps from me?"]]
*** Inverted when he snaps and kills the used car salesman for insulting Rita. Cue scared "he's freaking crazy!" reaction.
* ''Series/BreakingBad'': Gustavo Fring is a lethal guy to lock horns with, but he talks with the most creepy yoga-like serenity. Gus becomes more menacing whenever he ''does'' raise his voice.
* ''Series/TheXFiles'':
** Eugene Victor Tooms bare-ly has an-y in-to-na-tion at all and talks real-ly slow-ly. It's ser-i-ous-ly freak-y.
** Donnie Phaster, the SerialKiller in "Irresistible" with a fetish for dead women's hair, has a creepy, calm, flat voice and almost never blinks. Somehow, he can get strangers to see him as [[DevilInPlainSight charming and affable]] for a short while. [[spoiler:He turns out much later to have [[DemonOfHumanOrigin become]] or always been a demon.]]
* In the ''Series/{{Firefly}}'' episode "Objects in Space", River announces to the bounty hunter Jubal Early that she has "melted away" into the ship ''Serenity'', becoming part of it, in a creepy monotone. It becomes even more chilling when she alters her tone just a tiny bit for the line
--> "Not talking to River. You're talking to ''Serenity.'' And Early? ''Serenity'' is ''very unhappy.''"
* Creator/SummerGlau is good at creepy in general. In ''Series/TerminatorTheSarahConnorChronicles'', [[RobotGirl Cameron]] regularly speaks in a constant, soft-yet-creepy monotone. However, the show also plays its ''absence'' to excellent effect. The absence of the creepy monotone we're used to is what made the scene where Cameron recites not only word for word, but inflection for inflection a "classmate's" emotional bathroom rant for the principal creepy.
* ''Series/DeadliestWarrior'' gives us Brahm Galligher, who seems to be incapable of speaking in anything ''but'' a creepy monotone. Unless he's swinging a halberd around.
* ''Series/DoctorWho'':
** The Cybermen from "The Moonbase" onwards, and current. (In "The Tenth Planet" they spoke in a creepy emotionless [[AccentUponTheWrongSyllable sing-song]] modelled on early 'singing computers' like IBM 7094).
** The Daleks use a mechanical, staccato voice delivery, but they tend to increase both speed and volume for emphasis. Also, there's quite a bit of variation of individual voices. Creepy, yes; intensely emotional, and very [[LiteralMinded monotone]] - only the single tone used isn't flat apathy, but rather a consistent bent of shrieking hysterical rage. When they're not grating out staccato bursts of antipathy, it usually means something's very, very wrong.
** The sociopathic and terrifying Himmler-{{Expy}} Nyder in "Genesis of the Daleks" has this as his affect. He's remembered as one of the scariest supporting character in the story because of this, even next to [[EvilIsHammy Davros]] and the Daleks.
** The robots in "The Robots of Death" - one of the many reasons they invoke the UncannyValley InUniverse. The sequel ''Corpse Marker'' establishes that this monotone has become fashionable for humans to affect, especially those of upper classes.
** The creepiness in "The Impossible Planet" consists mostly of the creepy monotone of the Ood and the computer system being [[DemonicPossession possessed]] by {{Satan}}.
** In the "Human Nature/The Family Of Blood" two-parter, the Family of Blood sported eerie monotones for a little while after [[PuppeteerParasite they started inhabiting human bodies]]... and then all four of them went [[LargeHam stark raving mad.]]
** Used to great effect in "Silence in the Library", where an AI retelling cries of panic and pain in utterly emotionless creepy monotone made the situation seem scarier than it would be if they were reproduced verbatim.
* Sylar from ''Series/{{Heroes}}'' could ''possibly'' pass for a perfectly ordinary, non SerialKiller type, except that he seems capable only of a creepy monotone or murderous rage. No middle ground.
-->'''Sylar:''' This is usually the part where people start screaming.
* [[TheMenInBlack The Observer]] in ''Series/{{Fringe}}''. On first seeing him, this trope leads the viewer to believe that he's got something devious going on, but he turns out to be more ambiguous than that.
* Lucius Vorenus from ''Series/{{Rome}}'', while in the middle of a HeroicBSOD. Even for a man who is normally [[TheStoic quite reserved]] and [[ValuesDissonance has little problem with legally sanctioning killing]], uttering the same line over and over while covered in blood can get rather creepy.
--> '''Lucius:''' Where are my children?
* The Borg from ''Franchise/StarTrek'' speak like this, along with VoiceOfTheLegion. Individual Borg that have been separated from the HiveMind also start off with a creepy monotone, though as they develop their own personalities, they usually segue into DeadpanSnarker or SpockSpeak.
** Award for creepiest borg monotone goes to Locutus' line: "Your resistance is hopeless... Number One."
*** Almost everything Locutus said was terrifying.
*** It's worth noting that Picard used the Locutus monotone while interrogating the liberated drone Hugh, who recognized Picard as Locutus.
** Lt. Commander Data also qualifies for this trope. There are situations where, combined with his natural DissonantSerenity, Data's calm demeanor can be downright nightmarish.
*** Data spends most of "Masks" being a LargeHam after a number of alien personalities take over his body. Before Data or anyone else understands what is happening to him, however, he calmly asks [=LaForge=] a chilling question in a haunting monotone:
--->'''Data''': Geordi? What does it feel like when a person is losing his mind?
* ''Series/{{Lost}}'' gives us Benjamin Linus. "Of course, if I was one of them, these people that you just assume are your enemies, what would I do? There would be no balloon so I would draw them out to a really secluded place, like a cave or some underbrush, a good place for a trap... an ambush. And when your friends got there a bunch of my people would be waiting for them. Then they would use them to trade for me. I guess it's a good thing I'm not one of them, huh? ...You guys got any milk?"
* Robert Stack would often host his segments on ''UnsolvedMysteries'' in what was supposed to probably be a very flat, newscaster-type voice. However, the tone of his voice and the creepy nature of the show sent it careening into this pretty quickly.
* Robert California of ''Series/{{The Office|US}}''.
* One ''Series/SaturdayNightLive'' sketch featured [[BlatantLies sincere and heart-felt testimonials]] for [[http://www.hulu.com/watch/279562 The Amazing Alexander]], a Broadway hypnotist act.
* ''Series/GameOfThrones'':
** Peter Baelish always speaks in a smarmy, wry half-whisper. Not too creepy and even somewhat [[AffablyEvil affable]] when he simply converses with his peers, but he uses the same tone when describing [[FateWorseThanDeath the things he did]] to poor women [[YouHaveFailedMe who displeased him]], or telling a helpless girl, that she's [[FalseReassurance totally safe]] [[IHaveYouNowMyPretty with him]].
** One of the prisoners at Harrenhal speaks this way in "Garden of Bones" when explaining that her entire family has recently been tortured to death.
** Styr the Magnar pairs this with GutturalGrowler and SoftspokenSadist to breed a great ObviouslyEvil voice.
* This is one of the reasons Mesogog, from ''Series/PowerRangersDinoThunder'', is one of the most scary villains in the ''Franchise/PowerRangers'' franchise. He never raises his voice at all. Even when expressing extreme anger, frustration or threats, he stays completely calm. Since he is a half human/half dinosaur hybrid, he combines this trope with SnakeTalk, which makes him even more creepy.

* Some musicians, like David Byrne and Peter Murphy, are known for frequently employing an affectionless creepy monotone singing voice.
* "I Want My Innocence Back" by Music/EmilieAutumn has plenty of this.
* Music/{{Radiohead}}'s "Fitter Happier" uses this trope ([[SyntheticVoiceActor perfectly monotone]] [[MachineMonotone as only a computer can be]]) in addition to ''insanely'' creepy lyrics.
** Thom Yorke, the singer, sometimes actually slips into this, especially on the albums ''Kid A'' and ''Amnesiac''.
* "Hide and Seek" by Music/ImogenHeap.
* Nu-Italo (eg. Eiffel 65) songs often used vocoders to this effect.
* "Domo arigato, Mr. Roboto".
* "I Tried So Hard to be Good" by The pAper chAse.
* Music/OKGo's cover of ''Series/TheMuppetShow'' theme song.
* [[Music/{{OFWGKTA}} Tyler the Creator]] does this in his song "Fish," which details the thoughts of a man who is either a cannibalistic, necrophiliac serial killer and rapist, or who has an incredibly unhealthy obsession with fish.
* The female lead singer's vocal performance in The Flying Lizards' cover of Music/TheBeatles' "Money (That's What I Want)."
* Music/EvelynEvelyn speak like this and often sing like this. Despite being ConjoinedTwins they aren't presented as evil or creepy because of it. They however had a ''very'' horrible childhood and have poor social skills, which likely resulted in them speaking in monotone.

* Although Creator/{{Zaccaria}}'s ''[[Pinball/TimeMachineZaccaria Time Machine]]'' avoids the MachineMonotone of earlier talking pinball tables, the Scientist's speech is decidedly monotonic and somewhat disturbing.

* A panel segment on ''Radio/WaitWaitDontTellMe'' involved a study purporting that women found men speaking in a monotone to be sexy, leading to a hilarious attempt to invoke this from announcer and scorekeeper Carl Kasell:
-->'''Carl Kasell:''' [[Film/JerryMaguire You - had - me - at -]] ''[[Film/JerryMaguire hello]]''
** They also discussed how the inverse of a creepy monotone can be just as off-putting:
-->'''Peter Sagal:''' ''(in a Creator/DonKnotts voice)'' [[Film/BrokebackMountain I wish I knew how to]] ''[[Film/BrokebackMountain quit]]'' [[Film/BrokebackMountain you!]]

* In ''RolePlay/YuGiOhEastAcademy'', Marcus uses this during his BreakingSpeech to Gretel.

[[folder:Tabletop Games]]
* This is one of the suggested options for the voice of Friend Computer in ''TabletopGame/{{Paranoia}}''.
* On the few occasions in ''TabletopGame/{{Warhammer 40000}}'' that Necron Lords have spoken, they have been unusually polite and cultured speakers possessed of a truly chilling calm, which may make some sense, given that they are the still-sentient leaders of a race that now exists as, for all intents and purposes, undead robots.
** "Lucky creatures... At long last... you have found... the tranquillity... of death..."

* In ''VisualNovel/PhoenixWrightAceAttorneyTrialsAndTribulations'', Viola Cadaverini is said to speak with a creepy monotone, laced with subtle ''death threats''.
* ''VideoGame/HalfLife'':
** The G-Man from the series is a variant of this, particularly in ''VideoGame/HalfLife2''. He speaks in semi-monotone but stresses the wrong words and pauses (and fails to pause) in all the wrong places. (ex. "Not that I wish to-imply that you have been... ''sleep''-ing on the-job")
** A version of this appears in the first ''VideoGame/HalfLife1''. Black Mesa's PA system is created via a sort of voice synthesizer that [[MadLibsDialogue assembles pre-existing voice files into phrases]]. This is initially used as a generic announcer, but it is later taken under control of the enemy soldiers and used to threaten the protagonist himself.
** The Combine announcer combines this with medical terminology: She/it sounds like she's/it's describing a medical procedure, not an urban counterinsurgency crackdown.
* TheEvilArmy in the videogame ''VideoGame/{{Drakengard}}'' speaks like this, a side effect of the BigBad's MindControl, probably.
* ''VideoGame/MaxPayne'', in both games. It's particularly striking in the first game, since the actor providing his likeness, Sam Lake, looks quite humorous and has a flamboyant outfit (leopard prints).
* This is how the protagonists know that something is wrong in the titular star system in the game ''Nova 9''. They get a brief DistressCall that is cut off, then, shortly after, receive a message delivered in creepy monotone saying that everything is fine and to disregard the previous message.
* Gordon Holloway from ''VideoGame/TheLongestJourney''.
* ''VideoGame/{{Warzone 2100}}'': "Your attacks upon us will not go unpunished. You are in contravention of the New Paradigm. You will be eradicated. Message ends."
* [[ColdSniper Vindicare Assassins]] from ''VideoGame/DawnOfWar''. No aggression. No fear. Just a flat monotone that sounds scarier than a Khorne Berserker bellowing "[[AxCrazy WHY AREN'T WE KILLING YET?]]"
* ''VideoGame/StarCraft'' gives us the Ghost unit. Eek.
** [[https://www.youtube.com/watch?v=uVOBLTS0lJc#t=18s Abathur.]]
* The animated Statues in ''VideoGame/{{Thief}}: Deadly Shadows''. They have one purpose only and, as a result, come across as rather single-minded. "A noise and find and crush and kill and crush and kill..."
* ''VideoGame/{{Portal}}'' proudly sports [=GLaDOS=], who has a sort of musically random inflection, but in a very mechanical way. This is emphasized when she uses a word or phrase more than once in a short period of time. Also, "Wheeee..."
** The turrets also have the same type of voice (and the same voice actress), but with a more cute than creepy inflection (which doesn't say much).
** You spend so much of the game listening to that voice, right from the very start, that when you [[spoiler:destroy [=GLaDOS=]' Morality Core]] and she switches from robotic monotone to an emotive, fluent female voice, it's actually far creepier than the monotone, because [=GLaDOS=] talking like a normal person is simply [[UncannyValley not right.]]
* In ''VideoGame/BlazBlue'', the "final boss" in Arcade Mode is ν-13 (pronounced "nu-thirteen"), who is introduced with a creepy monotone and, yes, is an EmotionlessGirl with an [[AIIsACrapshoot Evil AI]] who becomes AxCrazy around certain people. [[spoiler:Like [=GLaDOS=], ν-13 shares a voice actor with another character.]]
** Nu does drop the creepy monotone whenever Ragna the Bloodedge is around, and uses a bright and cheery, almost babylike, voice with him. [[{{Yandere}} This is not an improvement.]]
** Lambda-11 of the sequel shares the same voice actress as Nu and speaks in a creepy monotone as well, albeit in a slightly different tone.
* The Many speak this way in ''VideoGame/SystemShock2''. They have multiple voices (an electronically-pitched rumble, a whispering masculine voice, and a nearly singsong feminine voice) and one or two of them sometimes have inflection, but the majority of it is in a serene monotone. "How can you choose cold steel over the splendor of flesh?" The contrast between the Many's monotone and SHODAN's stuttering and wildly varying inflection and pitch makes for one of the creepiest aural dichotomies the gaming world has to offer.
** Also, the Many-controlled AI, Xerxes (who resembles HAL 9000 much more than SHODAN): "[[ExplosiveDecompression Decompression]] in five seconds. We regret any inconvenience." He is also quite [[DissonantSerenity dissonantly serene]]; he announces workplace accidents, the number of shopping days until Christmas, meal times, and security breaches in the same tone as the freaky messages programmed into him by the Many.
** The original ''VideoGame/SystemShock'' also had a generic voice announcer on Citadel Station that spoke in this manner, alongside SHODAN herself.
* AM in ''VideoGame/IHaveNoMouthAndIMustScream'' averts this greatly, but [[spoiler: near the end of the game when you enter his inner workings, the Ego component of his brain plays it straight. The other two computers he merged with, making up his Superego and, Id also avert this.]]
* In the ''Franchise/KingdomHearts'' series, nearly ''every'' single Organization XIII member talks like this at least once, with Saix being the most notable example.
** And then most of it is dropped, while the rest is put into dissonance for [[TheBerserker the rage he unleashes during the fight with him]].
** But the [[NightmareFuel/KingdomHearts best example]] comes from ''358/2 Days'', towards the end of the game, right before the fight against [[spoiler:Xion. It then turns into a VoiceOfTheLegion act-alike]].
-->[[spoiler:"You're next, Roxas. I have to make you a part of me too."]]
** In ''VideoGame/KingdomHearts'', Ansem[[spoiler:/Xehanort's Heartless]] speaks this way in his introductory scene on Destiny Islands and, later, in Hollow Bastion. He ditches it later to make way for [[LargeHam ridiculously over-the-top semantics]].
** Xemnas' voice never has much emotion behind his droning voice, thanks to Paul St. Peter's acting. It's almost more disturbing than Saïx.
--> "There's no such thing as light." (He says this while surrounding Sora and Riku in an UpToEleven BeamSpam.)
** [[spoiler:Young Xehanort]] in ''Dream Drop Distance'' is a particularly jarring case, as all other versions of the character are infamous for being {{Large Ham}}s. Even Xemnas somehow manages to ham it up ''while monotone'', but not this guy.
* The promo material for ''VideoGame/MassEffect2'' features a geth named Legion speaking in this manner. It is absolutely ''terrifying'' when you hear him speaking on how the geth use fear in such a cold mechanical voice. [[spoiler:Then you play the game and find out the promos lied to you, and Legion's voice just makes it adorable.]]
-->'''Legion''': We do not experience fear, though we understand its effect on you.
** The Reapers speak this way as well, particularly Sovereign. Harbinger carries slightly more inflection, but is still consistent in tone whether he is [[MemeticMutation ASSUMING DIRECT CONTROL]] or remarking on how irritating the protagonist is.
-->"Shepard. You have become... an annoyance."
** In ''VideoGame/MassEffect3'', the Leviathan DLC has an entire mining facility speaking like this. This, along with the fact that they are unnaturally calm as Reapers attack their front door, are major hints that something is '''very''' wrong. It's also hinted that they've been speaking this way for '''ten years.'''
* The Tranquil in ''VideoGame/DragonAgeOrigins'' - Mages who have undergone a sort of magical lobotomy and are now incapable of emotion. The Sloth Demon also has one.
** One word: Hespith.
** First Enchanter Irving has a bit of this, though it makes him sound more like a tired old man rather than crazy.
* In ''VideoGame/{{Persona 4}}'', while most of the Shadows of the Investigation Team speak in a similar (albeit taunting) tone as their counterparts, [[spoiler:Teddie]]'s shadow speaks in a very creepy, almost ''dead''-sounding monotone. [[spoiler:This was changed in the UpdatedRerelease, when Teddie's VA was changed, and his Shadow developed [[EvilIsDeep a thundering bass voice]].]]
* Algalon of ''VideoGame/WorldOfWarcraft'', up until he loses his cool and admits his convictions may have been in error. He'll [[DissonantSerenity unleash hell]] on you before that happens, though.
** The Old God C'thun also speaks like this whenever his voice is heard in his raid, treating players to creepy whispers such as 'You are already dead.' and 'You will betray your friends.'
* ''[[VideoGame/{{STALKER}} S.T.A.L.K.E.R: Call of Pripyat]]'': You don't want to hang around The Monolith Fighters, but there are moments where their Creepy Monotone can be quite memorable.
* The "Milkman Conspiracy" level from ''VideoGame/{{Psychonauts}}'' is the mind of a paranoiac, where Government agents with the [[PaperThinDisguise flimsiest of disguises]] spout hilarious monotone oneliners to maintain their cover.
--> '''Road Worker''': [[CaptainObvious I am a Road Worker. This is my stop sign.]]
--> '''Plumber''': Faeces.
--> '''Housewife''': As I grow older, my husband will desire me less sexually, but will still enjoy my pies.
--> '''Grieving widow''': Why. God. Why.
--> '''Gardener''': Plants need water poured on them, because they have no hands to hold glasses of water.
--> '''Assassin''': They got Freddy. Poor Freddy. He was such a good secret agent. I mean assassin.
--> '''Phone Repairer''': I can listen to any phone conversation that I want, but do not because of my sense of professional responsibility.
--> '''Helicopter Pilot''': "Helicopters can go up and down. Helicopters move sideways too, but not as fast as planes.
* The entire village of genomes from ''VideoGame/FinalFantasyIX'' are said to be emotionless.
* The Martians of ''VideoGame/JeffWaynesWarOfTheWorlds'' speak like this. A notable exception is their trademark "ULLAAA!" from the musical, which can sound triumphant or sad depending on the situation.
* A minor example, being slightly unsettling instead of a major warning sign, but in ''Videogame/IMissTheSunrise'', Mr. Right and Mr. Left seem to speak in a robotic monotone, indicated by the fact that their sentences appear instantly instead of letter by letter.
* Sophie in ''VideoGame/TalesOfGraces'' normally speaks in something of a monotone anyway, but goes to creepy when Pascal brings up the idea of Richard eating royal crablettes. "Royal crablettes... royal crablettes..."
* The Chandelier from ''VideoGame/AceCombat6FiresOfLiberation''.
* Paul in ''VideoGame/DarkSeed II''.
* Cortana from the eponymous level in Halo 3. Although most of her lines are anything but monotone she says, "This is UNSC AI Serial Number CTN 0452-9. I am a monument to all your sins." in a monotone with bonus points for also using Voice of the Legion vocalization.
* Conrad Marburg from ''VideoGame/AlphaProtocol'' meets this trope halfway from GutturalGrowler and adds in a healthy dose of EvilSoundsDeep. Add in the PsychoStrings [[{{Leitmotif}} that seem to follow him around everywhere]] and the end result is rather sinister.
* ''VideoGame/{{Hellsinker}}'' has a distinct, monotone "[[AC:[[PrepareToDie You will die here!]]]]" clip that is used in several instances:
** Against Scarlet Queen in Segment 2 LEAD, if you unlock her Spirit Kernel form.
** At the end of the Shrine of Farewell, if you've killed all four bosses within the time limit.
** Against Rex Cavalier in Segment 7, as the final phase of his assault begins.
* "VideoGame/FiveNightsAtFreddys2": During the mini games, you'll hear a crude monotone voice that sounds robotic. This voice is spelling out a different sentence depending on what mini game you're playing (Save Them, Help Them, and Save Him). [[spoiler:"Them" and "Him" refer to the children that are about to be killed by a human.]]
* J.C. Denton and Adam Jensen, the protagonists of ''VideoGame/DeusEx'' and ''VideoGame/DeusExHumanRevolution'', respectively, sound very stoic. This was done intentionally so that the players can decide on how they feel. In the original game, secondary antagonist Walton Simons is a more straightforward example as he sounds almost completely devoid of any emotion at all save for the occasional hint of mild frustration. [[ObviouslyEvil He's also not a very nice person.]]
* [[{{Cyborg}} Aki Zeta-5]] and [[InscrutableOriental Chairman Yang]] in ''VideoGame/SidMeiersAlphaCentauri''.
* The [[spoiler: Fallen Child]] in ''{{VideoGame/Undertale}}'' uses this for [[DissonantSerenity creepy effects]] since every other characters at least have a form of VoiceGrunting.
* In Fallout 4, this applies to the elite Coursers of the [[BigBad Institute]], [[spoiler:including [[TokenEvilTeammate possible companion]] X6-88]]. Although they look perfectly human, it becomes clear how ''in''human they are after even a brief conversation. Such conversations usually involve them insulting the surface dwellers or threatening people in a tone that is at most only slightly flavored by mild annoyance, weary boredom, distant condescension, or vague curiosity. [[spoiler:"Sincere respect" can be added to the list by X6-88 if the player proves [[VillainProtagonist a loyal and capable director for the Institute]], at least.]]
* A minor character in ''VideoGame/KnightsOfTheOldRepublic'', an Iridorian, has one. Since the Iridorian is a BloodKnight who is motivated solely by the slaughter of his enemies, it makes him extremely unnerving for a character who appears only briefly and does nothing except stand in a bar and answer a couple of questions.
* In the Japanese dub of ''VideoGame/MetalGearSolid'', Gray Fox aka the Cyborg Ninja speaks like this. In fact, [[Creator/KanetoShiozawa his voice actor]] was notorious for using this trope to great effect.
* NominalHero [[ColdSniper Zer0]] in ''VideoGame/{{Borderlands 2}}'' speaks with very little emotion. He's probably the least "human" of the six Vault Hunters - even [[AxCrazy Krieg]] has desires beyond simply killing stuff (even if he's [[TalkativeLoon really bad]] at ''expressing'' them), but [=Zer0=] is motivated solely by murdering people, and getting money to buy more effective tools for murdering people.
-->''tee hee hee''
* [[ProfessionalKiller Agent 47]] from the ''VideoGame/{{Hitman}}'' series is a great example of this trope. A conversation with him, would be like making friends with a Boa Constrictor; quiet and unnerving. When 47 is around death isn't far behind, his robotic personality is expected from a hitman of his legend.
* ''Franchise/TheElderScrolls'':
** Throughout the series, this is a trait of Molag Bal, the [[OurGodsAreDifferent Daedric Prince]] of [[TheCorrupter Domination and Corruption]]. For much of the time, his tone doesn't change much while talking. However, he drops this trait and goes full on LargeHam when he becomes entertained or enraged. ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'' and ''[[VideoGame/TheElderScrollsOnline Online]]'' provide great examples.
** Sheogorath, the Daedric Prince of [[MadGod Madness]] in ''[[VideoGame/TheElderScrollsIVOblivion Oblivion]]''[='s=] ''Shivering Isles'' expansion. Normally, he's [[AffablyEvil rather charming and downright giggle-worthy]] with his fake-Scottish accent and habit of cheerily threatening life and limb (and mental integrity). However, [[OOCIsSeriousBusiness when he suddenly becomes very quiet, his eyes narrow, and he speaks very, very softly]], you're reminded that you ''[[AxeCrazy really]]'' ought to be terrified of this guy.

[[folder:Web Comics]]
* ''Webcomic/{{Homestuck}}'''s [[spoiler:Gamzee]] ''possibly'' speaks in monotone; it's hard to be certain exactly how his text quirk would be vocalised. At any rate, [[spoiler:he later [[AxCrazy goes off the deep end]], and upscales his wHiMsIcAl [=CaSe AlTeRnAtIoN=] to whole lines of text, meaning that he alternates between barely audible and screaming in rage]].
** Many people believe that [[spoiler:Doc Scratch]] speaks like this. Well, when he's not [[ComicalOverreacting flipping his shit.]]
*** 0f all the pe0ple in h0mestuck t0 menti0n here gh0st aradia sh0uld be at the t0p 0f the list. She's 0kay with n0t being menti0ned first, th0ugh. She's 0kay with a l0t 0f things.
* ''Webcomic/{{Kagerou}}'''s Kano speaks like this, according to [[WordOfGod the author]].
* Likewise, ''Webcomic/{{Remus}}'''s [[TortureTechnician Seth Williams]] [[WordOfGod apparently]] speaks like this. even when he's about to carve someone up like a thanksgiving turkey.

[[folder:Web Originals]]
* ''El Anticristo'' and ''Andale Ramiro'', two Hispanic dudes from Youtube who say the most aggressive things about anything via a by-definition-monotonous speech synthesizer, are famous for doing that.
* Gary from ''Machinima/RedVsBlue''. Voiced by ''Microsoft Sam.''
* Nacht from the Literature/WhateleyUniverse. A number of other students at [[SuperheroSchool Whateley Academy]] are utterly terrified of her.
* The [[CatsAreMean hovercat]] from ''Machinima/WaterHuman''. Like Gary above, he's voiced by Microsoft Sam.
* There are various internet CGI cartoons featuring anthropomorphic pig-things speaking with monotone voices.
* In ''Series/{{Noob}}'', Ystos sometimes speaks like this when using his assassin avatar.

[[folder:Western Animation]]
* Terminal, a one-shot ''WesternAnimation/BatmanBeyond'' villain, is another good one. This from the man (Creator/MichaelRosenbaum) who went on to play the ''[[WesternAnimation/JusticeLeague Flash]]''.
** This is especially creepy considering how Terminal is the leader of a gang of Jokerz. "You're not laughing. He's not laughing."
** ComicBook/TheJoker ''himself'' in much of ''WesternAnimation/BatmanBeyondReturnOfTheJoker''. Less laughing, more menacing.
* Mr. Freeze on ''WesternAnimation/BatmanTheAnimatedSeries'' never really deviated from his cold, chilling (no pun intended) monotone, providing juxtaposition to the emotional depth of the character. It was effective. WordOfGod has it that his voice actor, Michael Ansara, struggled with this element of the role -- his instinct was to ''act'', and he had to be constantly reminded to be flat and robotic.
** Possibly especially so in ''WesternAnimation/BatmanBeyond'', where he stops being simply apathetic and starts being straight up merciless.
--> "[[FalseReassurance There may be some]] [[IronicEcho momentary discomfort.]]"
** Jeffrey Combs as both Scarecrow in ''WesternAnimation/BatmanTheAnimatedSeries'' and The Question in ''WesternAnimation/JusticeLeague''. The difference being that Scarecrow's was creepy and Question's was hilarious.
-->'''Question''' (singing): Fell in love again. What am I gonna tell my friends?
** Question's speech to Luthor in 'Question Authority' falls right into this trope, however, being disturbingly calm.
* ''WesternAnimation/{{Dilbert}}'': The smartest garbageman in the world. [[AlmightyJanitor He also has access to all kinds of equipment no garbageman should possess.]]
* In one of ''WesternAnimation/TheSimpsons''' Halloween specials, Bart is turned into a vampire. He rejoins the family and monotones, "Hello mother. Hello father. I missed you during my uneventful absence."
** Then there was the one where Lisa has to tell Homer that Bart had rented a car with a fake ID and was trapped in Tennessee. Homer's face goes red and he says [[TranquilFury calmly]], "Yes. That's a real pickle. Would you excuse me?" He puts on a radiation helmet and screams incoherently for a while, causing the faceplate of the helmet to fog up. He then takes it off and says, now using the monotone again, "Alright, I have thought this through. I will send Bart the money to fly home. Then I will murder him."
** Also used during the teacher's strike, coupled with TroublingUnchildlikeBehavior.
-->'''Marge:''' There's just something about flying a kite at night that's so... unwholesome!
-->'''Bart:''' ''*Looks up to his parent's window over his shoulder*'' Hello, mother dear...
* Raven from ''WesternAnimation/TeenTitans''.
** The Brain also speaks in a rather creepy, electronic one.
** Slade also speaks in an eerily calm voice.
*** Slade is played by Creator/RonPerlman, who used the exact same monotone when narrating as Fire Lord Sozin from ''WesternAnimation/AvatarTheLastAirbender'' in "The Avatar and the Fire Lord."
* Owlman in ''WesternAnimation/JusticeLeagueCrisisOnTwoEarths'' (voice by James Woods) speaks in a calm, collected, and calculating manner which makes him quite creepy. Frequently a source of horror given what [[OmnicidalManiac his character is like]].
* The Twins from ''WesternAnimation/{{Superjail}}'' speak in a low, quiet, gentle monotone voice - a stark contrast to the Warden's loud, flamboyant, inflected way of speaking.
* While everyone [[FanonDiscontinuity might want to forget]] ''WesternAnimation/MegaMan'''s "Curse of the Lion Men", it does fit here. After Tar flash-reprograms Wily's robots and Roll, Protoman ''very flatly'' tells him that he's now their leader. Made even more unsettling since no one else being mind-controlled during that episode invoked this trope (except perhaps Roll).
** Earlier than that, Mega Man's voice becomes flat (along with a BriefAccentImitation) when he was under Wily's control.
* Played for laughs in ''WesternAnimation/{{Futurama}}'' with TheHypnotoad. Anyone it hypnotizes immediately speaks in a creepy monotone and [[MemeticMutation ALL GLORY TO THE HYPNOTOAD.]]
** Also parodied in the ''WesternAnimation/{{Futurama}}'' episode "Raging Bender", when Hermes comes back from vacation with a green slug on his head and explains in a creepy monotone that they had to make an emergency stop on the Brain Slug Planet. Throughout the episode, he tries to trick the others into wearing brain slugs.
* Shockwave of ''WesternAnimation/TransformersAnimated.'' He even gives a ShoutOut to [[Film/TwoThousandOneASpaceOdyssey HAL 9000]], saying "I'm afraid I can't let you do that" to Ratchet. [[spoiler:Though in his disguise as Longarm, he talks normally.]]
** The same show's version of Megatron has this to a lesser degree. Amusingly, he once modified his voice to impersonate [[TheBigGuy Bulkhead]], [[MostDefinitelyNotAVillain but kept the monotone.]]
* The ''WesternAnimation/TransformersPrime'' incarnation of Shockwave also very rarely emotes, which fits into his [[TortureTechnician occupation]] quite well. Even on the rare occasions he's angry it barely rises above the monotone, which combined with his [[CyberCyclops face]] just makes him even ''creepier''.
* Tino from ''WesternAnimation/TheWeekenders'' started talking like this when he was made fun of for crying during a showing of ''Theatre/RomeoAndJuliet'', so he decided to become emotionless.
* [[NightmareFuelStationAttendant Dr. Barber]] from ''WesternAnimation/TheMarvelousMisadventuresOfFlapjack'' speaks in a monotone all the time, [[VerbalTic mmmmmm, yes]].
* [[CreepyChild The Delightful Children from Down the Lane]] from ''WesternAnimation/CodenameKidsNextDoor'' play with this trope - while sometimes, they speak in monotone, they also can have emotional responses, such as anger and frustration, etc. However, they all speak at the same time.
** Lampshaded and subverted with ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'''s Billy in the crossover special, in which he can't seem to keep up with them.
** The episode "Operation: D.A.T.E" has the Delightful Children using a MindControlDevice on a lot of kids they invited to a party in their mansion. As a result, they get MindControlEyes and keep saying "Join us..." in a monotone sounding voice.
** The Interesting Twins From Beneath The Lane also speak in monotones, but they behave much more individually although they are {{Finishing Each Other's Sentences}} (like Mr. Wink and Mr. Fibb).
* [[CatchPhrase Baudelaire says that]] Maxwell Madison Jr. from ''WesternAnimation/{{Phantom 2040}}'' speaks this way as well.
* [[KillerRobot Ultron]] in ''WesternAnimation/TheAvengersEarthsMightiestHeroes''. Not helping is that he can't change his expressions, and his head is designed to look like an ant. Even worse, before he turns evil, he speaks in a much more emotional and upbeat fashion, meaning this is most likely intentional on his part.
* Her flat-tone delivery is most likely one of the reasons why ''WesternAnimation/{{Daria}}'' is so unpopular in school. The audience usually finds it endearing, but to most other people, she's "the freaky quiet girl".
* [[BigBad Amon]] in ''WesternAnimation/TheLegendOfKorra''. Scary enough on his own, but combine his creepy monotone with voice actor Creator/SteveBlum using his scariest voice...
** Even worse when you throw the mask into the equation and never know what he looks like [[spoiler:until the final episode.]]
* Braniac in ''WesternAnimation/SupermanTheAnimatedSeries''.
* ''WesternAnimation/{{Animaniacs}}'': Yakko and Dot slip in [[GenreSavvy and out]] of this after getting whisked off to the middle of nowhere by the GrimReaper.
-->'''Yakko:''' We accept.
-->'''Dot:''' To accept is to yield.
-->'''Yakko:''' To yield is to allow oncoming traffic the right of way.
-->'''Dot:''' Your breath is like the breeze of a landfill.
-->'''Yakko:''' Food particles are wedged between your teeth.
* In ''WesternAnimation/{{Fairly Odd Parents}}'', HP and Sanderson speak in such boring monotones that their voices are very low and deep. Even their {{Evil Laugh}} is dull and inaffective.
* In ''WesternAnimation/{{Wakfu}}'', Rushu is normally a [[EvilIsHammy hammy villain]]. [[spoiler:When he is forced to revert to his true form while fighting Goultard]], he briefly slips into a cold monotone, the implication being that he's not really having fun anymore.
* Ignignokt, the green mooninite from Aqua Teen Hunger Force.
* The Regis Mark V in ''WesternAnimation/MegasXLR'' speaks exclusively with a rapidly-delivered, but completely neutral tone of voice. It makes sense as it's a robot, but the way it says it makes it sound like assimilating everything non-organic into itself is as natural to it as breathing is to a human.
* The Emily clone in WesternAnimation/WorldOfTomorrow has one of these.

[[folder:Real Life]]
* Not all languages have the same range of inflection, resulting in speakers of a language with a lower range, when learning a new language with a bigger range (for example Dutch speakers learning English), tend to sound monotone.
* A bit of TruthInTelevision: behold [[http://en.wikipedia.org/wiki/Flat_affect flat affect]], a common symptom of depression, post-traumatic stress disorder, and the psychotic disorders (which includes schizophrenia). Some people with autism and aphasia also fail to display "appropriate" emotion, simply because they don't know how.
* [[http://en.wikipedia.org/wiki/Ben_Stein Ben Stein]].
* StephenHawking speaks like this, though it's because of the synthesizer he has to use to speak ''at all''. He's actually quite personable. His lectures certainly draw crowds.
** It's not just Hawking. Anyone who speaks using an artificial voicebox has no choice but to use a monotone, as the mechanism doesn't allow for inflection and tone. Later, Hawking was offered improved software that could affect tone better and use a more appropriate accent; he turned it down because the synthesiser is recognised as being his voice.
* Creator/ChristopherWalken may be the best example of this trope, so much that even Wiki/{{Wikipedia}} [[http://en.wikipedia.org/wiki/Christopher_Walken acknowledges it!]]
* Creator/JohnMalkovich
* Creator/ChristopherHitchens.
* Music/DavidTanny uses a voice for his songs and podcasts that is basically a cheerful monotone. Especially unsettling when what he sings about contains Squick, as it frequently does.
* Creator/CarlSagan [[http://www.youtube.com/watch?v=6BioBdeMg_8 sounded like Agent Smith]] before sounding like Agent Smith was cool.
* Used by Creator/RobinWilliams to show one of the ways you can find out if your neighbors have been taken over by aliens.
* In an interview, Creator/AlfredHitchcock explained that raving lunatics are not scary. He said it was the dead calm voice you can't reason with. He made a finger gun gesture and said in a dead calm voice "I don't want to do this, because my mother always said you shouldn't hurt people." Very creepy.
* Creator/WilliamSBurroughs.
* Creator/KevinSpacey
* For some reason, Japanese PA announcers, regardless of who they are, seemed to be trained to be as monotone as possible.
* Creator/JamesSpader