"There’s an old saying: 'Pretty girls turn heads…I break necks!'"
They are cute, sweet, innocent and extremely huggable
. Incidentally they are also varying shades of violent, unstable, and downright insane
Cute and Psycho is a trope that describes characters who are genuinely
cute in both appearance and mannerisms but have a completely batshit crazy side. Sometimes there are distinctly different sides which may be shown equally, but other times they are mostly one or the other, the Killer Rabbit
displaying moments of sweetness and relative-sanity or The Cutie
showing hints of a dark psychotic nature. Often there is some kind of Dark and Troubled Past
, or Split Personality
to justify how the two aspects of the person can both be genuine, but other times no explanation is revealed.
The primary difference between this trope and the Yandere
is that the Cute and Psycho character is not driven by an obsessive need to possess a friend or lover. Their motivation, if they have one, can vary immensely. They also don't necessarily have to be provoked
to enter their Psycho-state, but can switch for reasons observers would be hard-pressed to determine.
Cute and Psycho is a Sister Trope
to Killer Rabbit
and Enfant Terrible
, and closely related to Psychopathic Manchild
and Beware the Nice Ones
, though while there is frequent overlap between these tropes being one doesn't necessarily mean a character qualifies for another. If the "cute" part isn't real, then the character is The Fake Cutie
instead. Characters of this type tend to be female, though male examples do exist. The Ophelia
is someone whose psychosis is part of the cute picture, rather than a contrasted to it.
In some anime fandoms this character is referred to as a yangire
, an informal fanspeak term which is a portmanteau of yandere
(a word meaning "to snap or lose one's temper"). It's also used to refer to Ax-Crazy
versions of The Fake Cutie
. Not to be confused with fangire
, which is a species of monster vampire.
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Anime & Manga
- Ran of Urusei Yatsura is the poster child for (and likely the inspiration for all other) Cute and Psycho characters. On the outside, she's a cute redheaded girl who likes frilly clothing, baking, and flirting with Ataru. In reality, she's an embittered childhood rival of Lum who is out for some very violent revenge on the girl for well, a lot of things that aren't Lum's fault.
- Cilan from Pokémon, probably. At first it appeared as though his burst came from his battle with Burgundy, but in later episodes he starts slipping into this more and more. His flip-outs are mostly played for laughs, though. Except for episode 69 where he flips his shit at Skyla because he didn't like her attitude problem as well as her not taking her job as a Gym Leader seriously.
- Quattro of Magical Girl Lyrical Nanoha Striker S is sweet on the front, but this is revealed to be just an appearance.
- In Katanagatari, (Warning, this spoils one of the best reveals of the show) Nanami "My little brother kept chewing his nails, no matter how often I told him to stop. One day I ripped out his nails. He never bit his nails again." The ninja she is torturing starts to sweat and shiver. "It's only a story about child discipline."
- Big Bad Byakuran from Katekyo Hitman Reborn!, and Daisy and Bluebell of the real Six Funeral Wreaths.
- Wrath from Fullmetal Alchemist starts off as naively adorable, but upon being awakened... Yikes.
- Mari Illustrious Makinami from Rebuild of Evangelion 2.0. She only appears for roughly fifteen minutes in the movie, but these fifteen minutes show a rather nice character. As long as she isn't in an Evangelion, that is. When fighting, Mari is absolutely crazy - it is strongly implied that she actually fights simply because she enjoys fighting.
- Four Murasame and Rosamia Badam from Zeta Gundam, both of whom were some of the earliest Cyber-Newtypes and completely insane because of it. Not evil, just frightened and confused girls with a warped sense of reality (it is not coincidence that they pilot something called the Psyco Gundam). Then Gundam ZZ introduces Elpeo Puru and her clones. Puru herself is mostly harmless but is still a Child Soldier with a deep-seated obsession with Judau, while her clones were all mentally conditioned to serve "Master Glemy" and were coldly classified by Zeon as equipment rather than people.
- Mobile Suit Victory Gundam arguably has Katejina Loos, who doesn't look especially bad at first - she's initially rough around the edges, but fundamentally good-natured, until Chronicle gets his mitts on her (and main character Uso even states she's changed since joining Zanscare and used to be nice and kind deep down). To further complicate things, in the novels it's strongly implied she underwent Cyber-Newtype treatments, which are known across the series for making those who undergo them violently unstable.
- Mobile Suit Gundam SEED Destiny has Stella Louisier, one of the Extended members of Phantom Pain, and the series' version of the aforementioned Four. Adorable, childlike, happy... and a supersoldier with mental conditioning and enhanced physical skills from a complex, long-term treatment of drugs (which she can't survive without). She ends up torching half of Europe with a superweapon not out of malice... but because she was scared and had been told that the people there were "bad things" that were going to get her.
- Gundam 00 features Throne Drei's pilot Nena Trinity, a Genki Girl redhead who likes to wink, mock-fight with her violently overprotective brother and fellow Throne Michael and throw up the V-sign. She also gives Setsuna his Sacred First Kiss (also the first kiss for the series), much to his disgust. Exactly one episode later, Nena blows up a civilian wedding while on her way to the next mission to vent her frustration with having a hard day of work while others have fun. When asked by her brothers why she fired on civilians, Nena simply giggled and replied, "Heehee, sorry, I pressed the wrong button." In the second season, she dropped the facade as Liu Mei belittled her, and Liu Mei learns the hard way about double-crossing people when Nena traps her inside her ship as it's exploding, cackling maniacally all the while.
- Parodied in Galaxy Angel with the Character Exaggeration of Chitose, who already had some belonging issues; when the Angels left her behind or otherwise slighted her without knowing it, she went absolutely crazy with revenge, once even trying to turn them into rice and eat them. (Don't ask.)
- Played for Laughs with Kafuka Fuura of Sayonara, Zetsubou-Sensei. This eternally happy, cheerful girl has an obvious and horrible past, involving suicidal parents, relatives in jail, ostracism at school, and at least one exorcism, and yet there she is, enjoying life... for a value of it. She shows no signs yet of snapping, though people are scared of her and fear the day she does. On one occasion, her classmate, resident Little Miss Snarker Meru Otonashi, tries to "read" what Kafuka is communicating through her eyes at her prompting; she sees nothing but a red screen with the words "die die die die die killy kill die die die" and so forth, despite Kafuka never once dropping her happy appearance.
- DEAD Tube brings the lead girl Mashiro Mai, her introduction and following scenes are made to establish her as a cute girl, diligent sports girl for her swimming club, sociable to her girlfriends, cheerful smiler all around; what follows that is she being thrilled about murdering someone in cold blood, and demanding that to be filmed.
- Deadman Wonderland has Shiro, the hyperactive, scatter-brained apparent Manic Pixie Dream Girl who can and will rip off people's heads with her bare hands whilst smiling like a kid who's just left the sweet shop. She's also the 'Red Man', the unstoppable killing machine who slaughtered Ganta's entire class at the start of the story.
- Axis Powers Hetalia:
- Russia is a mixture of Cute And Psycho and Yandere. He cracked for non-romantic reasons (the Bloody Sunday), has mood swings due to his childlike temperament and manipulative nature, but his unstable side comes out especially strongly in regards to those he wants to keep close.
- Latvia has the potential to become one, having been abused so much by Russia that he comes close to snapping in the "Lily of the Valley" incident. It's not mentioned later.
- Mahou Sensei Negima!:
- Tsukuyomi is like this in her earlier appearances. As of her later appearance, she become a full blown Yandere.
- Chizuru Naba seems to be a somewhat less scary example. She is genuinely kind and protective, but there are some scary layers underneath... which are Played for Laughs.
- Ryouko Asakura in Haruhi Suzumiya, who manages to remain Cute while being Psycho. However, the human version of her from Disappearance is your standard yandere.
- Nearly every Diclonius in Elfen Lied, with Lucy also qualifying as a Yandere.
- Chloe from Noir smacks of this, possibly going full-blown Yandere for Kirika by the finale
- Dai Mahou Touge is what happens when this trope is applied to an entire universe.
- Anemone from Eureka Seven. "Melt away! Melt away! Your brains'll melt away!"
- Yumiko Takagi is a sweet, gentle soul who calls herself Yumie and go off her fucking gourd if her glasses are taken off.
- Seras Victoria manages to pull this off very well. Her standard persona is a Genki Girl, but get her into a blood rage and you are in for a REAL treat.
- Patti Thompson from Soul Eater. Cute Cloud Cuckoo Lander who exhibits odd moments of manic violence when she feels like it. Really, we should expect this, considering she grew up on the streets with her sister, surviving by mugging random people. Her 'training' suggests she's a mad, violent thing whose skill in combat has been overshadowed (as is often the case for Weapons) by her extremely powerful Reaper meister.
- FLCL has Haruko Haruhara.
- Several in A Certain Magical Index and its spinoff. From the Railgun anime, we have Telestina. From the novels, we have Anyeze, who goes from ditzy, innocent fanservice girl to psychotic religious freak proclaiming Catholics believe that marriage with 'outsiders' is bestiality in the course of a single scene. Which is offscreen.
- Czeslaw Meyer from Baccano! — you know, his whole reason to come to NYC...
- Code Geass has Euphemia, after she gets accidentally Geassed into becoming a mass murderer. "Those of you who call yourself Japanese, I have a favor to ask. Could you all die, please?" "I was hoping you'd all just commit suicide, but you can't, can you? O.K. So, soldiers, please kill the Japanese. Kill them all." Then she proceeds to grabs a submachine gun and shoot everyone.
- Diva, the Big Bad of Blood+ often acts like an amusingly spacey example of The Ophelia, but she's pretty horribly evil.
- A lot of child Contractors in Darker Than Black come across this way, especially the female ones, who channel a similar idea to Girl with Psycho Weapon. Mai in the first season of the anime, and both Azuza and Bai (in a flashback) in the interquel are shown killing or maiming people horrifically while having a Moe Stare expression on their faces. Maki might also count along with being a yandere. He sometimes comes off as an Adorably Precocious Child, but is completely psychotic and has an obsession with his leader, Amber.
- Black Butler has Alois Trancy. Throughout the first episode of the second season, he flips from sweet and innocent to Ax-Crazy so many times, it could make someone dizzy. As of his Character Development, he move into Yandere for Claude. That one backfired HORRIBLY.
- Death Note:
- Misa Amane is both Cute and Psycho and a Yandere.
- Beyond Birthday from the Another Note spinoff novel. Take L's more Moe qualities and then add crazy-evilness into the mix.
- Light Yagami, especially early in the series before Art Evolution and Character Development. His features do coarsen a bit the older and nastier he becomes.
- In Love Hina, Motoko's sister Tsuruko is usually calm and graceful, but when Motoko makes the mistake of being... creative with the truth in front of her, she drops that facade and out comes her Ax-Crazy side. Because of this and her Implausible Fencing Powers, Motoko goes back and forth between admiring her and being scared shitless of her.
- Mairu and Kururi from Durarara!!. Since they're Izaya's little sisters, it was obvious, though at least they're kinda sweet until you directly mess with them. Other examples include Erika, Walker and Aoba.
- Kumagawa of Medaka Box combines this with Stepford Smiler. His cheerful expression doesn't change no matter what he does; whether it's eating taiyaki (in the creepiest way possible), impaling people with giant screws, or blinding them.
- Mildo, a twisted rival female mercenary introduced in Volume 1, who is seemingly obsessed with defeating H&C Logistics Incorporated's resident Knife Nut in hand-to-hand combat.
Mildo: Valmet, you're all I ever think about. How you live. How you fight. How bout we beat the living shit out of each other, then I kill you. Sounds fun, eh? Kinda poetic.
Valmet: No... not at all... you psycho!
- Future Diary:
- Tsubaki Kasugano, the Sixth Diary Holder seems at first to be more of mix of Yamato Nadeshiko and Bitch in Sheep's Clothing when dealing with Yukki and Yuno, but then we see that her backstory of orphanhood and sexual slavery drove her completely insane.
- Fifth Diary Reisuke Houjou is a cross between Cute and Psycho and Tyke Bomb.
- Yuno herself, typical of the postergirl for Yandere everywhere. She always has this adorable little smile on her face when she attacks people with axes.
- Tenshi Ni Narumon:
- Mikael is usually a cute, easily agitated boy, but when under great stress and when things don't go they way he wants them, can turn into a really scary and obsessive psycho. It might caused by a side effect of his halo falling off.
- The same can be said about Silky - very moe and doll-like but tends to smash everything apart and set on fire when enraged. Only she was a scary psycho for most of the time during the series and again it can be argued that it was mostly a side effect of her halo falling off.
- Mama can turn into a very crazy witch when under too much stress.
- Yukino-sensei in Hohzuki Island, who at one point sneaks around the school in the dark, naked, with a wooden sword, ready to beat one of the children to death. Later turns out to be a subversion—yes, she's snapped and is fucking creepy, but it was because she thought one of the children was Cute and Psycho themselves, due to her best friend and fellow teacher turning up murdered. The kids acting very suspiciously didn't help matters. By the end of the manga, she realizes everything she thought was wrong, clears up some misconceptions about her, and then pulls a Big Damn Heroes on the real murderous teacher.
- The Claw in GUN×SWORD appears to be just a sweet old man.
- Hansel and Gretel, the Creepy Twins from Black Lagoon. They seemed to be cute in a creepy way, they are also a pair of Ax-Crazy Psycho for Hire twins who kill because it turns them on and are absolutely insane. And that's to say nothing about their Dark and Troubled Past.
- Ayame from Hanayashiki no Juunintachi. On the outside, she looks like a normal (if tomboyish) girl, but when a pervert tries to have his way with her, she proceeds to mace him with bug spray, rearrange his face with a hammer, stab him with a box cutter, mess him up with scissors... Did we mention it's a shounen romance comedy manga about cooking?
- Yukio from Bleach is revealed as such in chapter 466, when he gleefully uses his Fullbring against Hitsugaya while explaining how he drove his parents to commit suicide as revenge for their Parental Neglect. And once his rival presses his Berserk Button? The guy went BATSHIT INSANE.
- Henri Claytor from Future GPX Cyber Formula, who appears to be a cute and cheerful rookie racer in ZERO, actually has a homicidal obsession with making Hayato pay for ruining his life. This is due to his father ignoring and abandoning him after Hayato wins the championship instead of him. He somewhat gets better after the end of ZERO.
- If there are types of criminals that Shinichi Kudo from Detective Conan absolutely loathes, it's either this and/or Yanderes. And there's no shortage of those in such a Long Runner of a series.
- Fear from Cube×Cursed×Curious can become quite creepy when she decides to go fully psycho. It doesn't help that she IS a weapon able to become all kinds of torture devices.
- Chaos from Heaven's Lost Property is what happens when you mix Ax-Crazy with Love Freak while avoiding Yandere. What you get is the creepiest Moe character in the series who wants to share her "love" with everyone.
- A lot of characters from Pandora Hearts are this when they're not being Yandere.
- The title character of Haiyore! Nyarko-san has this naturally, since she claims to be Nyarlathotep, an insane and malicious Elder God from HP Lovecraft's Cthulhu Mythos, in the form of a beautiful teenage girl. Normally she's energetic, outgoing, and incredibly friendly with a passion for Anime and Toku. To her enemies, however, she's an Ax-Crazy lunatic with no sense of restraint and a propensity for turning her foes into Chunky Salsa. And if you lay a finger on the guy she loves, well, I hope you've taken out a life insurance policy.
- Yagami Yuu from Night Shift Nurses. When she's not being a good nurse who makes her patients comfortable, she's a psychopathic, murderous nymphomaniac.
- Nui Harime from Kill la Kill. She never lets up her playful and carefree nature, wears frilly dresses, and loves breaking the fourth wall. She also gleefully recites how she was responsible for killing Ryuko's father. She didn't even let up her childishness while she sunk the Rending Scissors into him in a flashback.
- Kanon Nakagawa from The World God Only Knows. She's the epitome of the sweet, adorable idol... as long as you don't get on the wrong side of her stun guns, as Keima did. Kanon and Keima's very first interaction was the latter telling the former that he doesn't know who she is. Her reaction is to taze him repeatedly.
- Rio Miyaichi from Ana Satsujin. She's a cute, socially awkward college student, but also a psychotic serial murderer who favors slashing her victims necks with a box-cutter.
- Akame ga Kiru! gives us Seryu Ubiquitous, the "Crazy Lunatic". Regularly, she's sweet around those who she doesn't consider evil. Around those that she does, of course... her personality switches over to bat-shit insane. As a matter of fact, she comes complete with a twisted conception of right and wrong.
- Private Actress gives us Kana Juumonji, a sweet-looking person who commits all kinds of bad actions including downright murder or driving people to suicide while smiling angelically.
- Magi – Labyrinth of Magic gives us Kouha Ren, a seemingly typical flippant prince of the militaristic Kou Empire... right up until he takes an extreme amount of glee in utterly decimating a gang of bandits that tried to rob his carriage.
- Kurumi of Date A Live is cute and has a whimsical personality but there's a reason her codename is "Nightmare". She has to hurt or outright kill people to power her Angel, but she's also not above killing them just to amuse herself and at one point tried to kill everyone in Shido's school just to prove a point.
- The main character of Little Sweetheart, Thelma. She's a cute little 9-year-old girl (admittedly, with an odd resemblance to a certain The Good Son star, though that came second) who is skilled at blackmail and stalking, and willing to murder her only friend because she was going to ruin her plans.
- Libbie/Boltie from Super. And how.
- Becky from Drop Dead Gorgeous is a pretty, smiling beauty queen... until someone gets in her way. Then out comes her shotgun.
- The Maids is about a couple of sisters serving as maids. Their mistress loves how sweet they are and how well they serve her. Poor madame just doesn't know what they do with her clothes when she's absent. Mistress is a kind of yandere herself, just not as wicked as her maids.
- The hook of the Torture Porn film Neighbor is that the killer ("The Girl◊)" is an extremely ditzy, hot, and sadistic bitch.
- Annie Wilkes, as played by Kathy Bates in the film version of Misery. Look below...
- Speaking of Kathy Bates, she plays a seemingly friendly Squirrel Lady in Rat Race. Two women in a car stop where she (and her squirrels) are on the side of the road. She tries several times to get them to buy a squirrel, but they only want directions. She gives them very specific directions before sending them off with a paper bag marked "I <3 SQUIRRELS". The women follow the directions that send them down a very steep incline. As they plummet, they pass several signs with one word written on each: "YOU... SHOULD... HAVE... BOUGHT... A... SQUIRREL". They end up in a ravine atop a large pile of vehicles...and a skeleton holding an I <3 SQUIRRELS bag falls onto the windshield.
- Angela Baker from Sleepaway Camp II: Unhappy Campers and Sleepaway Camp III: Teenage Wasteland.
- Brenda Bates from Urban Legend.
- Tracy Flick in Election.
- Sarah Jane McKinney in Miss Nobody is one of the sweetest people you could possibly meet... and she thinks little of murdering people to get ahead at work.
- Lucindia◊ from Hell's Highway. Being cute makes it pretty easy to be picked up by people, who can then be brutally murdered For the Evulz.
- Belle Blake, from Malavita, is a cute blonde teenager who just happens to be proficient with weapons and beats the crap out of a sleazy boy with just a tennis racket. Justified as she's a Mafia daughter in hiding with her family.
- The little girl from The Bad Seed. So pretty. So polite. So well-behaved. She's also a sociopathic serial killer.
- As mentioned, Annie Wilkes from the Stephen King novel Misery is an archetypical example. A qualified nurse, she rescues the main character and her zealously favorite author, Paul Sheldon from a car crash in the middle of a blizzard and cares for him. Unfortunately, Paul later finds out that she is a psychopathic, schizophrenic Serial Killer who has no qualms against chopping off his foot with an axe and cauterizing the wound with a blowtorch if he acts up.
- Kaitlyn Wernher from Dark Red Mind.
- Soulcatcher from Black Company is series introduced as something of a Benevolent Boss for the Company, despite serving the Big Bad, Lady. Later, we find out that she's completely insane. Which isn't surprising, considering she's the red oni to The Lady's blue oni.
- In The Pale King, Toni really loves her dogs.
"Now I'll know. If anything happens to these dogs. If they run off, or limp, or anything - I'll kill you, your family, burn your house down, and sow salt. I have nothing to live for but these dogs...But if anything gets done to these dogs I'll decide it was you and I'll sacrifice my life and freedom to destroy you and everyone you love."
- Sharon Falconer from the novel Elmer Gantry and its adaptations. She cultivates the outward appearance of a successful, articulate preacher, but Elmer discovers that she is deeply disturbed. In private, she toggles different personalities, including a petulant child-like persona and a pseudo-pagan priestess.
- The Fox from Seanan McGuire's Newsflesh trilogy.
- In the novel and movie The Bad Seed, Rhoda Penmark is an angelic little girl who loves her mother "Thissss much" except when she's drowning a boy who won the spelling medal she wanted, setting a dim-witted man on fire because he seemed to know too much, pushing an old woman down a flight of stairs for her snow-globe
- Alina Galenko from the web novel Animas Conquest is a charming, pigtail-sporting neo-hippie of sorts who is absolutely not above kidnapping and terrorizing the faculty of Salva Academy.
- The Poem from The Dollmaker is a tiny and beautiful woman. She's also a horrifying sociopath.
Live Action TV
- Angel: Fred's tendency to be this is never completely gone - just dormant.
- In Game of Thrones, a cruel process of Break the Cutie has brought this out in young Arya Stark, whose "evening prayers" now consist of a list of enemies she intends to kill. It's illustrated at its best near the end of season three, when she calmly informs Sandor Clegane that she will stick a blade through his eye and out the back of his skull some day. The next episode, she hammers it home by catching a Frey soldier off guard with feigned cuteness and vulnerability, then repeatedly and viciously stabbing him, all without showing the slightest remorse. Keep in mind that she's barely more than a child.
- Alicia Baker and Bette / Plastique from Smallville.
- Cassidy from Veronica Mars. Think he's the sweet, nerdy, helpless guy? Ha. More like rapist and mass-murderer. Have fun!
- Elle Bishop in Heroes, a cute, childish, and sociopathic woman who delights in killing, hurting, and controlling people.
- The Trinity Killer from Dexter. It's also an inversion; we see the dark side first. It's the "nice guy and family man" side that comes as a complete shock.
- All That's "Ask Ashley" featured a sickeningly sweet little girl with an insanely unstable temper answer moronic viewer's mail. Hilarity Ensues.
- Gem and Gemma of Power Rangers RPM are a mild case. Mentally, they're about kindergarten age, and their favorite things in the whole wide world are explosions. Especially when it's the evil Killer Robots going boom. The reason they're only a "mild" case is that they don't really want anyone hurt (though there was one time they had to be reminded that there were civilians enslaved in a factory they planned to "vaporize from sub-orbit").
- The third series of The Thick of It introduces us to Steve Fleming, MP, who is a spectacularly unstable version of this trope; that cheerful grin, the slightly creepy compliments and the "call me Uncle Steve" attitude you see when you first meet him? Get him even slightly agitated and his Ax-Crazy side will come to the fore. The scary part comes when he desperately tries to suppress his insanity, swinging from Stepford Smiler to Unstoppable Rage and back again so violently you wonder he doesn't give himself whiplash.
- Hooch from Scrubs. He's normally friendly and even charismatic, but pissing him off triggers his Ax-Crazy tendencies. This leads to J.D. and Turk frequently playing pranks on him to trigger his psychotic side, at one point even eating popcorn while Hooch is throwing death threats around. It becomes clearer with every appearance that the catchphrase "Hooch is crazy" thrown around by other characters is not exaggeration. After another of J.D. and Turk's pranks, he takes four people hostage and is subsequently fired from the hospital. In the very last episode of season 8, we see him in a strait jacket, proclaiming "Hooch is crazy."
- Rachel Berry definitely is a high-intensity-low-stability kind of girl, with her Serious Business approach to... well... everything. It's absolutely adorable when it's not just infuriatingly annoying, especially to her fellow Glee Clubbers who just seem visibly tired of her antics at times.
- Quinn can be incredibly sweet and endearing when she's not screaming at someone or going to absolutely insane extremes just to feel good about herself again.
- In Sherlock, awkward, Adorkable, Camp Gay, Jim from IT, whose last name is Moriarty.
- Bernadette from The Big Bang Theory is a mild version of this trope, usually sweet, demure, innocent, even a bit of a woman child at times, but she has a very short fuse and is extremely impatient and will go off on someone over seemingly small things and is quick to give Howard ultimatums if he has a dilemma that involves her. She also almost never stops smiling. And it's always the exact same toothy smile, even when she casually mentions the potentially weaponizeable biological specimens she's working with, or threatening someone with grievous bodily harm.
- Another mild example is Annie from Community: she is generally sweet and well-meaning, but minor things like a C grade or a lost pen have been known to make her crazy and/or violent for a while.
- Firefly's River is generally a cute, sweet teenage girl who is friendly and playful. She's also a government-manufactured killing machine with Psychic Powers and spent three years being experimented on, trained, and surgically enhanced until her mind could no longer filter or control incoming stimuli. As a result she is an unstable schizophrenic with ingrained martial arts and assassination training who often flips out without warning.
- Buffy the Vampire Slayer: Drusilla Keeble is soft-spoken, loves dolls and has a child-like innocence and affection for her "family" which can on occasion come across as vulnerable and sweet. She's also an omnicidal, certifiably insane vampiress who has on occasion been known to slit throats with her own nails. She was led to believe she was evil by Angelus who stalked, tortured and assaulted her for years until she finally turned insane and is turned into a vampire so she can suffer for eternity, so by this point the "psycho" part of this trope is quite understandable.
- Doctor Who:
- Helena from Orphan Black is an Ax-Crazy fanatic with a murderous hatred of clones (not knowing she's a clone herself). But she's beautiful, quirky, sympathetic, and one hell of a dancer.
- Mel from Flight of the Conchords. She does things like bake the band the cookies and has a not-so-secret crush on them that leads to some awkward moments between them. This description, although while accurate, would give you the impression that she was an Adorkable Dogged Nice Girl. But she's not, she's actually an insane Stalker with a Crush. And those awkward moments are the result of her creepiness and the fact that she sometimes coyly hits on them in front of husband.
- On the Soap Opera The City (a retooling of Loving), the cast was being stalked by a Serial Killer. Much to the audience's shock, it was soon revealed to be petite, perky blonde Molly Malone.
- The Maenads. Dionysus's followers who were once innocent, kind-hearted women until too much magic alcohol caused them to do horrific acts by tearing apart animals, children and sometimes men with their bare hands. They also killed poor Orpheus.
- While bordering on and sometimes crossing over into Ms. Fanservice in her initial WCW run, this trope was the case in TNA. On TNA Xplosion, Don West described Daffney as "Just crazy enough to attract you and just crazy enough to make you want to get the hell away." When forced into a strip tease after Impact went to Monday nights she proceeded to give perhaps the most unsexy undressing a genuinely attractive person ever gave on Spike TV, as her eyes screamed "Die". She also got herself cutup more than all the other knockouts, perhaps barring Roxxi, usually when her own designs to maim people backfired.
- Was, or at least became the gimmick of Lin "Bitch" Bairon in SMASH. She had to be restrained by a chained dog collar before matches.
- Subverted at first in SHINE, as Kimberly started to let herself go in the earliest stages of her Sanity Slippage, but then her winning streak was over and she cleaned up, during the latter stages.
- Forgotten Realms sourcebook Shining South got a sample NPC like this. A smiling half-drow (and both halves do work in her favour) cutie with Girlish Pigtails. In a tasteful armor, with short sword and composite bow. According to her stats, a Talos-worshipping Neutral Evil ranger / shadow marauder. As in, a Dambrath noble pillaging neighbour countries more for the fun of it than any economical benefits, and trained to not be stopped by boring things like fortifications for longer than an eyeblink.
- Irina from Rasputin Catamite looks like a cute porcelain doll with pigtails, and speaks in third person, but seems to enjoy hacking people to death with an ax.
- Sophie from The Overture is the most vile example of this. She uses her child-like appearance and sweet singing voice in order to lure children into her grasp. She then proceeds to torture them in order to hear their screams.
- Buwaro from Slightly Damned is a demon, but he loves everything and everyone. He'll invite you to play catch, or explore, or just give you a great big hug. But if you value your life, do not remove his star pendant! While he goes berserk without it, it is not a Berserk Button, but a medical condition which the pendant is magically treating.
- Errant Story: Concussion is a cute little fairy nurse eager to help you. Her name is not an oxymoron, it is an euphemism.
- Fuchsia from Sinfest, though she had a short period of Yandere.
- Hinted at with The Little Girl and "Mr. Duck" from Johnny Optimism.
- Zoophobia has Cameron, a go-getting, curious young woman, who happens to be psychotically neurotic when in uncomfortable situations, or when around animals.
- In The Inexplicable Adventures of Bob!, adorable Cute Monster Girl Molly has an identical twin sister (well, clone) named Golly, who varies between Deadpan Snarker and stark raving megalomaniac.
- Subverted in this Friday 4 Koma.
- Three examples come to mind on That Guy with the Glasses; Ask That Guy, with his poshness and suaveness hiding a monster, Bennett The Sage, who looks sweet and cute but can terrify Ask That Guy, and The Nostalgia Chick, who really is girly and generally decent, but has a mess of issues and sociopathic qualities underneath.
- Pink and Blue from Charlie The Unicorn. Cute little innocent sickeningly optimistic and 'imaginative' unicorns, who pull elaborate traps for Organ Theft.
- The Gaming Pixie, apparently, particularly when she reviewed Eversion. The review starts off cheerfully enough... and slowly descends into fearsome. Much like Eversion itself.
- The Laughing Clown from Dark Dream Chronicle types in pink and generally acts like a little kid. She's also dangerously psychotic, once biting someone's tongue out for "shiggles". Even the other members of the cast think she's completely insane.
- Survival of the Fittest has a fair amount of these sort of characters, mostly of the Beware the Nice Ones variety. A textbook example of this trope, however, would be Mariavel Varella of v2. Due to abuse at the hands of her father, she can go from a cheerful teenage girl to a hardened Delinquent who apparently once beat a man to death with a baseball bat before being abducted. And when she gets to the island... well, she just gets even more crazy.
- Jade Sinclair (codename Generator) of the Whateley Universe. She's cute and sweet and cheerful. She looks like she's ten or eleven. She 'invents' wacky devises. She looks like the harmless member of Team Kimba. Right up until she handles an attacker by stapling him to a tree with railroad spikes through his arms and body, and burns a message into his flesh.
- Flippy of Happy Tree Friends, as he's calm and sweet part of the time, but the minute something triggers him (by reminding him of his time in the Weaponized Animal Regiment), whether it be something like a car backfiring, the sight of a knife, fire, or an airplane, he flips out and switches to his other personality, Fliqpy, and starts killing everything around him rather creatively and brutally with a huge Slasher Smile on his face.
- Based from a murder case that occurred in Japan in 2004, "Nevada-tan" became the memetic Moe Anthropomorphism of the concept.
- RWBY has a heroic example in Nora Valkyrie. While she is a Cloudcuckoolander Genki Girl, she also has shown Blood Knight tendencies on multiple occasions. For the most part she is a Badass Adorable, but...