->"It's always the quiet ones, isn't it?"
-->--'''Slade''', ''WesternAnimation/TeenTitans''

When most people think of The Quiet One, they may also think ExtremeDoormat or ButtMonkey alongside it. Whether they are one or not (half the time they are only ''seen'' that way), subject them to one round too many of BreakTheCutie and the like, and, if it isn't preceded by a DeathGlare, they will give you a 'not so quiet' moment.

Alice seems to be The Quiet One who keeps to herself. Bob sees her as an easy target and makes her his honorary ButtMonkey to abuse. After weeks of quietly taking this, Alice [[BreakTheCutie snaps]].

Maybe Bob pushed a [[RelativeButton certain]] [[BerserkButton button]], maybe those [[HiddenDepths anger management classes Alice used to take]] are [[UnstoppableRage starting to wear off]], maybe Alice ''has'' [[BeneathTheMask been angry]] all this time, it just [[TheStoic never showed]] or no one took it seriously. Maybe this is her [[IsThisWhatAngerFeelsLike first time]] dealing with anger.

No matter which reason, what comes after is the same: An unleashed [[UnstoppableRage raging]] or [[TranquilFury cold]] speech of epic proportions that not even the most [[AxCrazy demented]] character in the story would want to sit through.

This rage is almost always expressed verbally, though [[LetsGetDangerous violence]] can also be included. Their verbal attack can differ from an ego-brusing TheReasonYouSuckSpeech, a mentally scarring BreakingSpeech or an emotional WorldOfCardboardSpeech. If they are also TheStoic, they might also ask the offender "DidYouThinkICantFeel" before ranting about all they have been put through. One might also catch [[PrecisionFStrike a swear or two]].

Another version could be when the heroes' team is in low spirits, and TheQuietOne, fed up with all the sulking, [[FlippingTheTable throws the table (or something else) to the side]] and gives a RousingSpeech to their comrades.

Usually a CrowningMomentOfAwesome when they are shown to finally [[IncrediblyLamePun speak up]] for themselves, but can change depending on the character or the setting.

The main difference between Beware The Quiet Ones and its sister trope BewareTheNiceOnes is while the latter is known for their kindness, the former is known for their (near) silence, though they can overlap sometimes.

Compare and contrast TranquilFury, where the character can range from [[GenkiGirl happy]] or [[TheStoic stoic]], but their anger is more quiet (but ''still'' dangerous).

Compare BeneathTheMask, ShrinkingViolet, LetsGetDangerous. See also RantInducingSlight.
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!!Examples:

[[foldercontrol]]

[[folder: Anime and Manga ]]

* ''{{Durarara}}'' [[spoiler: Mikado Ryugamine is a great example of this trope. He may seem quiet and nice, but underneath he's quite unstable. He's the leader of the Dollars, for another. You do not want to tick him off.]]
* Near-Invisible Canada from ''Manga/AxisPowersHetalia'' is a good example: ButtMonkey? Check. ShrinkingViolet? Yep! Giving [[BoisterousBruiser America]] TheReasonYouSuckSpeech? A true CrowningMomentOfAwesome.
* Machinedramon from ''Anime/DigimonAdventure'' is a villainous version. Don't let his whispered [[CreepyMonotone monotone]] fool you; he's as powerful and sadistic as any of the other Dark Masters.
* Tetsuya Kuroko from ''Manga/KurokoNoBasuke'' is a good example as well. Practically invisible, he doesn't really talk much and people don't notice him. But if you try to dirty the game of basketball [[UnnecessaryRoughness through nasty tricks]]...
* Bertolt Hoover from ''Manga/AttackOnTitan'' is a soft-spoken ExtremeDoormat with absolutely dismal self-confidence. He spends much of his time lingering around the others awkwardly, and rarely offers more than a few words. He's also a highly skilled soldier, graduating 3rd in his class, and [[BerserkButton fiercely]] protective of the people he cares about. [[spoiler: He also happens to be the SecretIdentity of the Colossal Titan, and as such a PersonOfMassDestruction responsible for wiping out 20% of the human race. While remorseful over it, he's fully prepared to do whatever is necessary to accomplish his mission]]. Beware the quiet ones, indeed.
* Ai Emma, the titular ''AnimeAndManga/HellGirl'' is the most reserved character in the series as her job requires her to supress her emotions to the point where it is very difficult to make her angry... God help you if you actually succeed.
* Shiryu from SaintSeiya is a softspoken GeniusBruiser with lots of common sense and a great devotion to his Master, his ChildhoodFriend, his Goddess of liege and his TrueCompanions. He also represents the Dragon constellation and wears the Dragon Cloth... and according to Shiryu himself, the Dragon is calm and wise until those he cares for are threatened/hurt/killed/etc. in any way. Guess what happens to Shiryu whenever this happens? And even more so if either his Master or ChildhoodFriend are the one in danger...

[[/folder]]

[[folder: Comics ]]

* Fans of [[Comicbook/{{Exiles}} Blink]] may not know that she was introduced on Earth-616 during the Phalanx Covenant as a very shy, introverted girl named Clarice Ferguson who was terrified of her own powers. When she finally cut loose, she [[OneHitKill killed]] the formerly unstoppable Phalanx unit that had been holding her and a group of other young mutants captive... at the cost of her own life. The Blink who joined the Exiles was from an [[ComicBook/AgeOfApocalypse alternate timeline]].
** [[GenerationX Monet St. Croix]] was introduced in the same storyline, and also fit the trope. She spent most of her first issue silently studying Phalanx technology until she could identify the impostor hiding among her fellow mutant prisoners. Then she hit him with a MegatonPunch and led a breakout.
** Even cooler than it sounds - she appeared to be ''catatonic'' at first. Turns out this was just a super-intense state of concentration, and she'd worked everything out... look out, Phalanx.
* [[ComicBook/{{Batgirl 2000}} Cassandra Cain]] was originally mute, and after learning speech she doesn't talk much. That's because her dad taught her to talk with her ''fists''. Heaven help you if you get her mad.
* [[{{Spiderman}} The Spot]] used to be a Spider-man villain known for being largely ineffectual and mouthing off. Then he got trapped in the dimension he teleports through. Now he's mute, insane... and probably one of the deadliest killers alive.
* [[TheInhumans Black Bolt]]. Whenever he utters a sound, it destroys things on a major scale. That is to say, a whisper from him is on the level of a nuke.
* {{X-23}} rarely spoke at all in her first appearance (''NYX'') and origin story, (''Innocence Lost'') and even after is a laconic girl who generally shuns the company of others. She's also a highly-trained assassin and one of the most dangerous killers in the main Marvel Universe. God help you if you harm one of the handful of people she ''actually'' cares about.

[[/folder]]

[[folder: Fan Fiction ]]

* ''FanFic/RosarioVampireBrightestDarkness'': Dark Kuyumaya is very much TheStoic, rarely expressing emotion or even talking much. This hasn't stopped him from hospitalizing several bullies at Yokai Academy or going OneManArmy on a Fairy Tale squadron.

[[/folder]]

[[folder: Film ]]

* Matsu, the main character of ''Film/JoshuuSasori'', has a knack for [[TheDeterminator patiently and silently enduring whatever mistreatment gets thrown her way]] and waiting for just the right moment to unleash violent revenge on those that wronged her. This is why she is called ''Sasori'', or "Scorpion."
* Gaear Grimsrud from {{Fargo}}. He hardly ever says a thing throughout the entire movie (something [[LampshadeHanging lampshaded]] early on by Creator/SteveBuscemi) but if provoked or put in a situation where he might get caught... well, let's just say that you don't want to be near him and a gun. [[AxCrazy Or an axe for that matter...]] [[spoiler: [[LudicrousGibs or a woodchipper.]]]]
* In Film/{{Ghostbusters}} Walter Peck shuts down the power to the Firehouse despite Egon's dire warnings that it would be like dropping a bomb on the city. This results in an enormous explosion and hundreds (possibly thousands) of ghosts being released back into New York all at once. Peck orders some nearby police to arrest the Ghostbusters, claiming they were directly responsible for causing the explosion. Egon ''completely loses it'', screams "[[YourMom YOUR MOTHER!!]]" and has to be ''physically restrained from tearing Peck apart with his bare hands.'' Remember, this is Egon Spengler!
* {{Office Space}} Beware Milton. Or he'll [[spoiler: set the building on fire.]]
* {{Thor}}'s antagonist, Loki, started as the often pushed-aside, quiet, intelligent younger brother who was given too much power at exactly the wrong time.

[[/folder]]

[[folder: Literature ]]

* In ''Literature/TheOutsiders'', Johnny was the most quiet and most law-abiding of the greasers but when [[spoiler: he sees his friend Ponyboy being drowned, he stabbed and killed the attacker.]]
* ''Literature/HarryPotter'': Quirinus Quirrell is the nervous, mostly unnoticed and seemingly innocent character throughout the entire novel. However, at the end it turns out that [[spoiler: he has been possessed by Voldemort all along and has been trying to kill Harry all through the book. However, he was probably being controlled by Voldemort by this time as he had been taken over after trying to seek him out to destroy him in his weakened state, trying to earn some respect from his friends and fellow school pupils that had laughed at him for so long.]]
* ''Literature/DarkLife'' has Pretty. Despite his name, he is ''not'' someone you want to annoy.
* Steapa from Creator/BernardCornwell's ''[[Literature/TheSaxonStories Saxon Stories]]''. Quiet and originally believed by the protagonist to be a half-wit, he becomes an absolute killing machine in battle.
* Ben from ''Literature/TheLeonardRegime'' is much more reserved than most of the other characters, bur provoking him is never a good idea.
* Roose Bolton from ''Literature/ASongOfIceAndFire'' is a mid-level lord, and bannerman to the Starks of Winterfell (the "good guys" of the series). His obsessive habit of leeching himself leaves his voice very weak and whispery, so that everyone has to lean in to hear him speak during strategy conferences, and he loses the first battle he's sent to command in. [[spoiler:Later, he betrays and personally murders his liege, King Robb, and is declared the new Lord Paramount of the North. It turns out he was working for Tywin Lannister all along, and kept over half of Robb's troops sitting on their asses for the war, later sending most of them to die in a pointless fight. Even the Lannisters underestimate him, as it turns out that after Tywin Lannister's death and the complete anarchy that falls upon the kingdoms, Bolton may be considering declaring himself the new King in the North and seceding, since the southeners wouldn't be able to do much about it anymore.]]
* Creator/TheodoreSturgeon 's short SF story "Extrapolation" was originally published under the title "Beware The Fury", as in the phrase "Beware the fury of a patient man". Wolf Reger is a brilliant but aloof and antisocial scientist/astronaut and humanity's future depends on his actions. [[spoiler: When he is captured by alien invaders , Earth's governments all think he has turned traitor. But he manages to destroy the alien fleet single-handled without even using a weapon.]]
* Beka Cooper, the protagonist of ''Literature/ProvostsDog''. While she's [[ShrinkingViolet paralyzingly shy]], she's very good at chasing down criminals and fighting. (She does become less shy, but rarely chatty.) She has also been known to blow up at people who have been frustrating her over a ''long'' period of time.

[[/folder]]

[[folder: Live Action TV ]]

* ''Series/PersonOfInterest'': Reese tends to whisper when he talks. He prefers to let his actions speak for him.
* ''Series/BreakingBad'': the Cousins, a pair of assassins working for the Cartel, barely say a word in all the time they appear in the series.

[[/folder]]

[[folder: Multiple Media ]]

* The ''Franchise/{{Noob}}'' franchise had Ivy, [[SleepyHead narcoleptic]] and apparently not much more aware of what is going going on when awake. But just try attacking one of her guildmates while tuning your back on her...

[[/folder]]

[[folder: Recorded And Stand Up Comedy ]]

* Creator/GeorgeCarlin didn't think much of this trope.
-->“It’s the quiet ones you’ve got to watch.” You know that one, eh? Every time you see a story about a SerialKiller on TV, what do they do? They bring on the neighbor. And the neighbor says, “Well, he was always very quiet”. And someone in the room says, “It’s the quiet ones you’ve got to watch”. This sounds to me like a very dangerous assumption. I’ll bet you anything that while you’re watching a quiet one, a noisy one will ''fucking kill you!'' Suppose you’re in a bar and one guy’s sitting over the side, reading a book, not bothering anybody, and another guy is standing on the front with a machete, banging on the bar, screaming, “I’ll kill the next motherfucker who comes in here!” Who are you going to watch? You’re goddamn right.
** [[DoubleSubversion The quiet one of course! He's calmly reading a book while a lunatic is waving a machete around!]]
** [[TakeAThirdOption Watch them both]].

[[/folder]]

[[folder: Visual Novels ]]

* Saito Hajime in ''VideoGame/{{Hakuouki}}'' is the quietest member of the Shinsengumi and the one who can always be depended on to follow orders scrupulously and faithfully. He's also ''the'' most lethal swordsman of the group and [[IaijutsuPractitioner practices iaijutsu]] specifically because it allows him to end most of his fights before his opponents know they've started.
* PlayedForLaughs with Mio from ''VisualNovel/LittleBusters''. On the surface she seems like a delicate, fragile EmotionlessGirl. And indeed, her physical stats are quite low. But she's very intelligent and downright ruthless at times, such as when she takes advantage of every slight lapse in attention on [[GenkiGirl Haruka's]] part during the newspaper fight and is able to hit her countless times, or when she performs an absolutely devastating take-down of Haruka's joke when they're only supposed to be performing a simple BokeAndTsukkomiRoutine.
* Kiryuu Moeka in ''VisualNovel/SteinsGate'' is a very socially withdrawn woman and prefers to let her text messages communicate for her instead of talking. Even when the person she's texting is literally standing right in front of her. [[SchmuckBait Take a guess]] at [[AxCrazy what]] [[UnstoppableRage happens]] when you [[BerserkButton steal her phone]].

[[/folder]]

[[folder: Webcomics ]]

* Finland from ''Webcomic/ScandinaviaAndTheWorld'' has this moment, where he shouts [[ClusterFBomb Perkele 306 times]] after losing to Denmark in hockey.
* Yuki Sonada from ''MegaTokyo'' kind of fits this trope (more since her magical girl abilities awakened, than in her earlier appearances). That is, assuming she's not just being stereotyped as an over-emotional teenage girl.
** So do Piro and Ping, but if pushed over the edge they can be [[RageBreakingPoint physically violent]], too.
* ''WebComic/{{Precocious}}'': It took a while, but Yvette has finally found someone to be nemesis to.

[[/folder]]

[[folder: Web Original ]]

* On ''WebVideo/StripSearch'', Katie Rice is absolutely the quietest person in the house, but it soon becomes clear that she's also one of the best competitors -- starting when [[spoiler:she wins two elimination challenges in a row]].

[[/folder]]

[[folder: Western Animation ]]

* Raven from ''WesternAnimation/TeenTitans'' may be reserved, but god help you if you ''really'' piss her off. It doesn't help that [[spoiler: she's [[HalfHumanHybrid half-demon]], and destined to cause TheEndOfTheWorldAsWeKnowIt]].
* Flora from ''WesternAnimation/WinxClub'' is sometimes thought to be a pushover because of her shy nature, hesitance to harm living things, and the nature of her powers. But time and again, she proves that nature is not so harmless, especially in ''Tears from the Black Willow'', when the Trix hit her BerserkButton.
* [[ShrinkingViolet Fluttershy]] of ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' is the quietest member of the mane cast, on account of being, well, [[MeaningfulName shy]]. Then comes "The Best Night Ever". When she's avoided by the forest creatures of Canterlot... [[{{Yandere}} well,]] [[http://www.youtube.com/watch?v=W7fQSBC4Ids see for yourself]].
** Fluttershy in "Putting Your Hoof Down." Dear Celestia....
** She displayed this way earlier, in ''Dragonshy'' and again in ''Stare Master.'' ''Dragonshy'' is the episode where the fans learned that you do not mess with Fluttershy.
** From Season Four, ''[[{{Recap/MyLittlePonyFriendshipIsMagicS4E6PowerPonies}} Power Ponies]]'' demonstrates that you wouldn't like Fluttershy when she's angry.
** Also, Celestia help you if ''Big Macintosh'' raises his voice.
* The ''WesternAnimation/TransformersPrime'' version of [[TheBlank Soundwave]] speaks using others' recorded sentences ([[SilentAntagonist when he speaks at all]]), rarely ever has a major starring role... and can bash in heads with the greatest of ease, as [[DarkActionGirl Airachnid]] [[CurbStompBattle can attest to.]] He's the second-most feared Decepticon on the ''Nemesis'', right under Megatron himself, and with good reason. Knock Out even says "Watch out for the quiet ones" to Breakdown after Soundwave curbstomped Airachnid.
** [[OneManArmy Wheeljack]] fared slightly better against Soundwave than Airachnid did. But ''only slightly''.
*** To put this in more perspective, Wheeljack had an easier time against ''[[TheDragon Dreadwing]].''
** Soundwave is eerily silent when he fights, too. It's kinda CreepyAwesome.
* In ''TransformersAnimated'', Prowl definitely qualifies for this. He's a sleek, dark ninja who doesn't really like anyone else, prefers to sit in his tree and meditate.. but when he fights, he ''wins'', most of the time.

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