Ax Crazy / Anime & Manga

Looks like she's going through another blood-rage.

Examples of Ax-Crazy in anime and manga.

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• 7 Seeds: Given the way they were raised and especially the Final Test, it's quite understandable that Team Summer A is a bit... unhinged, so to say. They go so far as to kill their guide when they awaken in the future, test unfamiliar, potentially harmful food to a child to see if it's safe to consume or even bringing other people into life-threatening situations to "test" them.
• Air Gear
  • Agito, upon his introduction, was a cruel and sadistic killer thanks to a horrible childhood. Just as he starts getting better about it, a split personality called Lind shows up.^note It's his third personality, and doesn't exactly come out of the blue At his most tame, Lind is twice as blood-thirsty as Agito was at his most wild.
  • There's also a Storm Rider called Gabishi who functions as an assassin. He doesn't think a job is done unless he's torn the skin from his target's face. Despite being an assassin, he does not kill, thanks to a code of strict laws he follows, but his attacks still incapacitate targets for months, and they have to live without a face.
  • Nike, The Dragon, is clinically insane in a violently proactive manner. If you do something to piss him off (and if you aren't important to his brother's plans, this means do anything around him), he'll kill you in some horrible and likely drawn-out manner.
• In Akame ga Kill! you can see Seryu, who qualifies for it. Ironically, she's constantly talking about bringing justice by attacking and killing her opponents. Esdeath also qualifies for this.
• In Angel Densetsu, Ikuno had moments of this before her Heel–Face Turn. She's a lot better now.
• Attack on Titan: Even before his mother was killed by a Titan, Eren Yeager wasn't entirely stable. At age nine, he personally planned out and committed the murder of three human traffickers to save Mikasa, and brutally stabbed one of them to death while screaming about how it's what he deserved. After his mother's death, he's practically fueled by Unstoppable Rage and his hatred of all Titans.
• Baccano!: Ladd Russo and Graham Spector. Ladd is a token Psycho for Hire who takes maniacal glee in killing anyone and everyone, once beating a man to death by brutally punching him 47 times in the face, even after he died, and expressing his love for his fiancée Lua by passionately threatening to murder her. Graham is a destruction obsessed maniac who expresses himself by dismantling everything around, including people (he also holds deep admiration for the aforementioned Ladd, referring to him as an "older brother"). Quartes outdoes them both in violence. In fact, everyone has shades of this.
• Many a villain from Berserk. Femto, (or Griffith) less so than most, being more sociopathically calculative. Guts himself has his moments as well, especially when he's under the sway of his Enemy Within.
• Bakuten Shoot Beyblade sometimes has team leaders go this route. In the second season, Kane becomes ax-crazy under the influence of Cyber Dragoon and ends up the cause of the near-death of his closest friends, not to mention himself. Fortunately, said friends manage to get through to him in time. Then there's also Brooklyn in the third season, who doesn't take his defeat by Kai well. He never imagined it possible he could be beaten and grows more and more unhinged after that. As with Kane, he gets better due to being reached out to. In the manga, it's Michael who becomes ax-crazy by the prospect of finally being a winner. It's bad enough that he destroys his own teammate's beyblade, being aware just enough that he wants to be forgiven for that. He doesn't win, but is forgiven anyway, all of which gets the ax-crazy out of him.
• Alan Gabriel from The Big O, who, due to him often descending into fits of insane laughter, and him wearing make-up, powdering his face white and wearing red lipstick, is a blatant nod to the Joker of Batman fame. Most of that show is a blatant nod to Batman. R-D also fits this trope.
• Big Order: Kurenai Rin.
• Grell Sutcliff from Black Butler is Ax Crazy, although somewhat manageable in the anime, at least. In the manga, it takes a superior Reaper to keep her from slaughtering the protagonists, and she's therefore a much less frequently recurring character.
  • Alois Trancy from the second season. Oh GOD.
  • Baron Kelvin is a genuine psychopath.
• Black Lagoon:
  • Revy, a Sociopathic Hero, is usually able to keep her crazy under control and her guns aimed at the right people, but in one arc that had her and Dutch storming a ship full of Neo-Nazis, the "Whitman Fever" (named for Charles Whitman, the infamous sniper who went on a mass murder spree from the top of a university tower in Texas) took hold of her, and the only thing that prevented her from killing the non-combatants aboard the ship as well as her Nazi quarry was Dutch's intervention. And in the manga version of that arc, she murdered them all before Dutch got there, with the Charles Whitman speech occurring when Dutch confronted her about it.
    • Said bout of Whitman Fever being brought on by the horrendous, unforgivable crime of Rock saying "Y'know, maybe we shouldn't steal from dead bodies."
  • The Vampire Twins, Hansel and Gretel. Hansel even carries an ax. They make Revy seem almost normal, fer cryin' out loud. The most unfortunate part of that story arc is they seemed to fool viewers into thinking Rock might turn Gretel around...
  • Shenhua and Sawyer the Cleaner. Both of them loved to chop up victims with their kukuri knives and chainsaw respectively. In fact Sawyer loved it so much she became a professional cleaner so she could slice up all the unfortunate people that pissed off the different mafia groups in Roanapur. Although amusingly enough, Shenhua and Sawyer are actually two of the only three mercenaries who are sympathetic in the Greenback Jane arc (the third being Rotten the Wizard). Sawyer herself actually becomes a bit of a Woobie once her voice box is knocked away, going into a bit of a Villainous BSoD.
  • Chaka from the Yakuza arc is incredibly sadistic and violent and just seems to really love hurting people, even when it's detrimental his own survival. He's first introduced trying to impress the aforementioned Revy and then violently beating Rock when he "interrupts" him, and then beats up his younger new boss and attempts to sell her into sex slavery. Not even his own men are safe from his violent tendencies, as he's prone to beating them for doing something he didn't tell them to do, and he carelessly murders some of them while in the middle of a gunfight for taking cover or just to vent his anger.
  • And in the El Baile De La Muerte arc, Roberta takes this trope to a new high in the course of her Roaring Rampage of Revenge, which is seriously bad news for Roanapur in general.
• Gennai Doma from Black Lion is extremely murderous; he'll slaughter any ninja in his path. This is because a group of them killed his wife and he got cyborgenetic implants that gave him super strength and other powers.

• Bleach:
  • Kenpachi Zaraki is an Ax Crazy badass who takes great pleasure in stretching fights out as long as possible for maximum bloodshed.
    Kenpachi: Sanity? I never had such a useless thing in the first place.
  • Mayuri Kurotsuchi, who is very much a danger to anyone and everyone around him. The biggest difference between him and Kenpachi being that Mayuri is infinitely more sadistic and only fights when he knows he has the upper hand. That, and he's only a danger to you if you make him mad (good luck avoiding that by the way); compared to Kenpachi, who's only a danger if you're strong.
    • His Arrancar counterpart, fellow Mad Scientist Szayelaporro Granz, fits as well. He even represents 'madness' as his aspect of death among the Espada.
  • Ichigo's inner Hollow, Grimmjow, and Nnoitra. Especially Nnoitra, him being Kenpachi's Evil Counterpart and all.
  • Yammy Llargo is the biggest example among the Espada, being insanely violent and unpredictable to the point where he will even kill his own allies without hesitation if that's what it takes to satiate his bloodlust. He's so bad off, another Espada has to supervise him during his trips to the living world to prevent him from causing excessive collateral damage.
  • Retsu Unohana's true nature is revealed to be this. It makes sense, considering that she was the original Kenpachi. In fact, she's considered to be the most diabolical criminal in all of Soul Society history — which means that she was a worse criminal than Aizen.
  • Yhwach. For starters, his introductory scene features him blasting off his subordinate's arm just to get his attention. His penchant for wanton brutality is incredibly disturbing, whether it's lobbing limbs across the room or obliterating corpses to make sure they're dead. He will kill even his own men if he can benefit from it, or even just because he can. His cool, calm smile at the sight of his carnage truly compounds that something is quite wrong with this man.
• Diva from Blood+ also qualifies for it. She regularly directs massacres for sheer pleasure, and laughs when she kills humans. Her greatest hobby is to hurt her sister Saya. In the anime, she also rapes and kills Saya's adoptive brother.
• In Brave10, Kamanosuke is the Token Evil Teammate, who's only really interested in blood, pain, and the thrill of the fight and even states the reason he was a bandit wasn't for money but for the hope victims would attempt to resist and give good sport. This is all played for Comedic Sociopathy once he joins up.
• Bungou Stray Dogs has Yumeno "Q" Kyuusaku, a young member of Yokohama's underground who has no regard for friend or foe. He entertains himself by using his ability, which causes hallucinations that make people lash out violently, on whoever happens to be around at the time.
• A Certain Magical Index:
  • Touma actually invokes this when fighting Aureolus, a Reality Warper. By acting Ax-Crazy, he terrifies the alchemist into defeating himself with his own power.
  • Accelerator is a more straightforward example; even after his Heel–Face Turn, he'll still happily murder anyone who picks a fight with him. Ultimately subverted come the New Testament series.
• Gettou Mokoto from Change 123 suffers from Dissociative Identity Disorder. Three of her personalities (Hibiki, Fujiko, and Mikiri) aren't actively dangerous to those around them and only fight as a defense (admittedly, Hibiki has a liberal definition of same). It's Zero, her fourth personality, that is dangerous to everyone around her, whether they be enemies, one of her fathers (long story), friends, or even her Love Interest Kosukegawa.
• Chrono Crusade: There's Joshua Christopher, who's gone crazy due to having Chrono's horns. His first appearance with the horns is him tearing apart a group of demons with his bare hands.
• Most of the Awakened Beings are like this in Claymore, due to their penchant for innards, but of the Claymores themselves, Ophelia deserves a special mention for being absolutely batshit insane and willing to fight people on her own side, as Clare finds out. There's a reason why Miria warns Clare about her, and why one of her nicknames is 'the blood-soaked warrior'.
• Code Geass:
  • Luciano Bradley, the Knight of Ten, is known as the "Vampire of Britannia" and is a self-proclaimed "homicide genius". When Zero attacks Tokyo directly, he immediately asks to be assigned to the defense just because he wants to kill people.
  • Mao the Psychopathic Manchild, who's usually looking for a chance to use his trusty chainsaw.
  • Jeremiah Gottwald spends a brief period like this near the end of Season 1. After hearing Zero's voice over a broadcast channel, he goes completely berserk, steals a mech, and rushes off in an Unstoppable Rage, taking out anything and everything in his way to get to the Gawain and losing his shit even more when Zero insults him. He's calmed down considerably by his next appearance, though. It's justified as well in his case; he was put through forced cyborgnization after being seriously injured and his mental state is flat out said to be unstable even before he goes off into a rage.
  • Schneizel hides this very well underneath a veneer of affability, sophistication, and apparent benevolence, but make no mistake: The man is an utter psychopath who treats everyone and everything as if they were chess pieces. He doesn't even blink when it comes to murdering millions of people with a nuke. Even Charles knew exactly what sort of man he was and tried to warn Lelouch of it.
• Cowboy Bebop had two characters who shared this trait:
  • Tongpu/Mad Pierrot from "Pierrot le Fou", a completely psychotic serial killer who just...kills. He has the mind of a 4-year-old, to boot.
  • Vicious. His megalomania and quest for power leads him to sacrifice everyone from his pet bird to old friends with whom he shared many memories. Both share the characteristic of killing for the sake of killing more people.
  • Big Bad Vincent Volaju from Cowboy Bebop: Knockin' on Heaven's Door as well.
• DEAD Tube:
  • Mashiro Mai is amiable and friendly in her school, but is also a completely murderous individual infatuated with a Video Hosting Website that hosts videos containing real murders and sex related violence, she is thrilled to produce those videos.
  • The Film Research Club is also revealed to be collective of insane minds, but their methods of killing are more methodical, unlike Mashiro’s frontal approach of killing by herself with Baseball Bats, Knives and Screw Drivers.

• Death Note:
  • Teru "Sakujo" Mikami. He loves passing "God's judgment" on the people he kills. During the warehouse scene he had what would be hard to describe as anything but an orgasm after he wrote the SPK members' names in the Death Note. But as it turns out, Near replaced the pages of Mikami's Death Note so that he could not kill them no matter how many times he wrote their names down.
  • Beyond Birthday/BB from Death Note: Another Note - The Los Angeles BB Murder Cases easily stands out as the most vicious and depraved criminal that L has ever faced. Indeed, BB is what you would expect from a sadistic Serial Killer who enjoys committing heinous and brutal crimes.
• Demon Slayer: Kimetsu no Yaiba: Muzan Kibutsuji doesn't need much reason to kill anyone. He presents a calm disposition, but he is truly a violent maniac. If you get on his bad side (which is incredibly easy), he'll slaughter you with prejudice. But even if you don't, he'll still kill you to take your blood. If he doesn't have a reason to kill you, he'll find one.
• Dr. Kazutaka Muraki from Descendants of Darkness is looking to bring back his dead older brother Saki. Not crazy enough? His brother killed both their parents. Still not crazy enough? His brother tried to kill him but was stopped (lethally) by the family butler and now keeps his bro's head in a jar till he can revive him and kill him properly. STILL not crazy enough? He's been known to remove his own major organs just to mess with people... and he's a Depraved Bisexual to boot.
• All the members of Noah clan from D.Gray-Man are less-than-stable. For example, Road once stabbed the protagonist in the eye with a candle For the Evulz, Tyki enjoys ripping organs out of their bodies because he thinks it's fun, Jasdevi once shut one character in iron maiden, Skinn Bolic gets into murderous rage if something he eats isn't sweet... Then there's 14th...who wants to kill and replace the Big Bad. Exorcist general Winters Socalo might also be one.
• Most of the main cast in Dorohedoro is, but hammercrazy Shin and Psycho Knife Nut Cayman take the cake.
• Dragon Ball:
  • There's General Blue from Dragon Ball, seeing how he states after executing a soldier for picking his nose that he loves the sound of gunfire executing soldiers.
  • Demon King Piccolo and his offspring Piccolo Jr. before his Heel–Face Turn. During their fight in the World Martial Arts Tournament, Piccolo Jr. blasts a gaping hole in Goku's shoulder and sadistically stomps on the wound while laughing maniacally, later telling Goku that seeing him crippled and in agony before him "means more to me than you can possibly imagine."
  • Vegeta displays such a trait during the Saiyan Saga of Dragon Ball Z, freaking out and trying to blow up the Earth simply because Goku made him bleed. He returns to this in his Majin state, indiscriminately blowing up scores of innocent people to provoke Goku into a fight, all with a Psychotic Smirk on his face.
  • Frieza is incredibly sociopathic, and at times, is shown to be extremely sadistic to the point that killing and causing pain seems to be his favorite sport. For example, when he destroyed Planet Vegeta and left the Saiyan race near-extinct, he laughed his head off and declared it to be a beautiful sight the whole time. In Dragon Ball Z: Resurrection 'F' and Dragon Ball Super, he Comes Back Strong From The Dead and determined to avenge his defeat at Goku's hands in any way possible. Such as blowing up the Earth immediately and with a manic grin on his face, even knowing it'll kill him. He has to beat Goku; being there to celebrate that fact is entirely secondary.
  • Androids 17 and 18 of Trunks' Bad Future are incredibly sadistic and psychopathic, spending two decades going on random killing sprees and keeping score of how many people they kill. Future 17 in particular is actually shown to be even more vicious and brutal than Future 18; For example, Android 18 decided to spare the life of a shop owner because he was nice to her, but even after hearing that, Android 17 killed the shop owner by blowing up his store. Later, Android 18 is shown to be very upset because Android 17 killed a boy she liked. Android 18 even says that Android 17 goes out of his way to destroy everything she likes. The Future Android 17 also appears to be considerably more bloodthirsty than Future Android 18, as while Android 18 will eventually grow bored of all the destruction the two of them are always causing, Android 17 can't seem to get enough of it.
  • Cell became this in his Super Perfect state. After dealing with Trunks and Vegeta, crippling Gohan's arm in the process, he outright tells the Z-Fighters that he's done playing games, the Earth will soon be destroyed, and the rest of the universe will follow. He spends the entirety of the ensuing Beam-O-War with Gohan either shouting threats at him or laughing like a maniac.
  • Majin Buu from the Buu Saga of Z is this taken to Omnicidal Maniac extremes. Every time he transforms into a new form, he becomes progressively more evil and psychopathic to the point where he just blows up planets without a second thought. This is especially true for his final form. To put it in perspective, the first thing he did after reverting to Kid Buu was try to blow up the planet. When he was foiled, he just made the next shot ten times bigger so he wouldn't miss.
  • Dragon Ball GT has a good example in Baby. When he possesses Vegeta and becomes a Golden Great Ape, he fakes going on a rampage simply to test his new power, killing several of his followers in the process.
  • For movie villains there's also Broly and Super Janemba. Broly even said that he was the devil itself and destroyed some slaves home just because they wanted to go back on their planet in Dragon Ball Z: Broly – The Legendary Super Saiyan. In Dragon Ball Z: Fusion Reborn, Super Janemba laughs like a maniac when his sword is destroyed and is only scared by Super Gogeta. Janemba even looks like a demon.
  • Beerus also counts when he's angry as he destroys planets simply because the food on the planet wasn't good. In Dragon Ball Super, he even states outright that no matter how many times he sees it, he never gets tired of watching a planet he destroys explode.
  • Goku Black is a violently insane, psychopathic Knight Templar and relishes in the carnage and slaughter he inflicts upon humanity and other mortal-kind in the name of his "Zero Mortal Plan". As Zamasu, he shows nothing but sadistic glee in killing his master for his time rings and Potara earrings, then after switching bodies with Goku and killing him, he proceeds to brutally murder Chi-Chi and Goten For the Evulz with nothing but a demented smile on his face.
  • The Super incarnation of Broly bounces around with this. He's rather docile by nature, but piss him off enough and he quickly devolves into a feral animal. After Paragus bites it, the Dragon Ball Wiki quite neatly sums up his mental state as "kill everything that moves".
• Elfen Lied:
  • Any Diclonius has the potential to be extremely Ax Crazy, although the show manages to raise a lot of sympathy for them as well. Lucy, the primary character of the series (when she's not in her cute and harmless "Nyuu" mode, or back when she was just Kaede prior to becoming a genocidal lunatic) is one of the most frightening characters you will ever meet. Her introduction scene has her violently slaughtering people left and right with her vectors at a lab while wearing nothing but a helmet.
  • Aside from the Dicloni, there's at least three human characters that qualify, showing a sadism that's quite frankly terrifying: Tomoo, Nousou and The Unknown Man. With guys like these, it's no wonder why Lucy thinks Humans Are the Real Monsters...
    • Bando before his Character Development qualifies, too.

• Ibelda from Endride gets increasingly irrational and out for blood as time goes on, to the point where he slaughters his teammates, the Truculent, his employer, the king, and jumps recklessly into a inter-world transportation device that was unstable, only to get deconstructed and spit back out again with some eldritch additions. It's an intense escalation from not liking taking orders.
• Fairy Tail has Zancrow and Zero and both the eyes are red.
  • Flare Corona of Raven Tail is rarely seen without her Slasher Smile. Subverted when we later find out it's a facade. And they've all got nothing on Jackal, once the Tartarus Arc begins.
• Eyeshield 21:
  • Agon Kongo was implied to be this early on in the series. After being defeated by Deimon, his earlier axe craziness evolves into him simply being incredibly selfish and willing to use violence to further his goals if he can get away with it. His later characterization of just being a major prick means his earlier actions could be seen as him just being a ridiculously petty jerkass.
  • Hiruma purposely builds his image off of being seen as one. Once you get to know him, you realize there's actually meaning to his madness.
  • Similarly, Gao seems Ax Crazy, but he's actually capable of controlling himself, which just makes him even more frightening as he can't be manipulated.
• Fruits Basket:
  • Akito is definitely not the poster child for mental stability, considering how horrific her Domestic Abuse of the Zodiac members can get; among other things, she beat Kisa to a pulp and landed her in the hospital for weeks on end simply because she heard Hiro say he had a crush on her, and when she discovers that Rin "touched her things" by engaging in a Secret Relationship with Haru, she throws her out a second-floor window. She only gets worse as the series progresses and several Sohmas are freed from the curse, until she suffers a Villainous Breakdown, literally stabs Kureno In the Back, and goes after Tohru with a knife in a delirious frenzy.
  • Her mother Ren is even worse, and is the entire reason Akito is so screwed up in the first place. Even in an entire series of people with mental/psychological issues, Ren stands out; near the end of the series, she busts into Akito's room and tries to kill her with a knife just to steal a box.
• Fullmetal Alchemist:
  • Barry the Chopper is a butcher turned serial killer who enjoyed chopping up flesh, but grew bored of just doing it to meat and started hunting humans instead. His eventual execution by hanging was well-publicized, but in truth, like many other Death Row inmates, he was instead used in human alchemical experiments where his soul was ripped from his still-living body and bound to a suit of armor.
  • Zolf J. Kimbley in the first anime. His manga and Brotherhood counterpart likely qualifies as well, but manages to keep it hidden far more effectively through a facade of politeness.
  • Envy revels in the horrible atrocities and Kick the Dog moments he commits and takes every possible opportunity to gloat about them to anyone who will pay attention. For a perfect example, look no further than when he giddily admits to Ed and Ling that he was the one who started the Ishvalan Civil War, all with an ear-to-ear Slasher Smile on his face.
  • Lust also qualifies. While she's considerably more composed than Envy, it's made pretty obvious that her "lust" is a lust for violence and murder. To drive the point home, she's the only Homunculus who is willing to kill sacrifice candidates for Father's Evil Plan, something that even Envy knows they're not allowed to do.
• Full Metal Panic!: Barring Sousuke, all Lambda Driver operators appear to be Ax-Crazy; Gauron is a self-destructive Psycho for Hire with an unnatural fixation on killing -- or being killed by -- Sousuke, Takuma, the A21 terrorist commanding the colossus, is a delusional wreck who had killed his own sister without knowing, and Gates is... Um... Completely, utterly off his rocker.
• In Future Diary, the character Yuno Gasai uses axes (along with many other sharp weapons) to kill people that threaten her relationship with the protagonist Yukiteru Amano (this relationship is mostly one-sided as she's a Stalker with a Crush).
  • This sums up the majority of the cast really. Even Yuki has a bit later on in the series due to Sanity Slippage.
• Sakon Daimaru from Gamaran when he fights seriously. Partially justified by the massive trauma caused by his ambitious big brother Ryuugo. Many of the Muhou Ryuu's warriors tend to be nutjobs, with Muraku Matsumoto standing out above them.
• Anna from Granbelm is shown to be constantly very angry and violent. Especially if it involves Shingetsu.
• Several characters (more like almost all of them!) from Getter Robo, most notably Hayato as a delinquent (or adult terrorist in some adaptations) and Ryoma, who actually does use an axe. Appropriately, Ryoma's Humongous Mecha uses a Big Fraggin' Axe too and it goes Ax Crazy as well, becoming sentient and going on a rampage that would make EVA-01 wet itself in terror.
• Shogun the gelada baboon from the Ginga Densetsu Weed manga. Literally in this case since his main weapon is an axe. Also Hougen.
• Ryuuhei Sawamura and especially Bryan Hawk from Hajime no Ippo.
  • Takamura and Ryo Mashiba have their moments too. Mashiba himself goes mad when he fights Sawamura, which results in one of the dirtiest matches in the whole series.
• Skuld Silent-Third of Heavy Object. She actively seeks to kill as many people as she can immediately and has a hobby of abducting, torturing, and killing civilians and soldiers alike. Her sister and their Object acted as a cage to keep her bloodlust focused on the battlefield. When she tries to escape her sisters would rather kill her than let her reach a safe country for fear she could wipe out millions.
• Alucard from Hellsing. Sadistic, bloodthirsty, clearly off his rocker, and nearly godlike in power. Also one of the series' most popular characters... maybe due to his Undying Loyalty to Integra and places he won't go. In the anime, less so.
  • As pictured above, Seras has moments when she is like this due to her vampirism.
  • A solid chunk of the Vatican's Iscariot Section XIII qualify as well. Father Alexander Anderson is a Noble Demon and Holy Hitman who becomes absolutely bloodthirsty whenever he encounters Alucard or whenever another vampire/Nazi/heathen/whatever else happens to pop up. His Action Girl protégés, Heinkel and Yumie, aren't much better than their mentor, although no one's as nuts or off their gourd as Maxwell, who takes it so far against the innocent population of London that Anderson has to kill him.
  • The Major. The Doctor. Zorin Blitz. Every single villain in this franchise!?
    • Except for the Captain.
• From Hetalia: Axis Powers, there are Russia and Belarus, although this is debatable.
  • Lithuania is generally the victim of the cruelty, as he is Russia's "favorite." So Russia could count, though only when the true side of his bipolarity shows, as he is generally quite docile.
  • To some extent with Belarus and her knives... and her Brother–Sister Incest marriage complex with Russia.
  • Uhm, well... if you look at history, there's a time when practically every country has been a little ax crazy. Too bad fandom likes it a little too much and makes everyone a crazy asshole for the sake of ~art~.
• Malike from Highlander: The Search for Vengeance plays this trope straight. He leads a group of cannibalistic mutants, and seems to kill from pure pleasure. He also laughs when he wants to kill Colin. In addition, he is one of the few immortals who do not fight with a sword. Instead he fights with a kind of chainsaw.
  • Kyala also qualifies for it, but she is not as savage as Malike.
• Highschool of the Dead: Saeko Busujima is by far the craziest amsongst the cast. At first she seems like the perfect girl to date, but in reality is a Blood Knight who enjoys cutting down zombies, as it allows her to indulge in her violent impulses without restraint. Combine this with Cute and Psycho, Immodest Orgasm, Orgasmic Combat and Interplay of Sex and Violence, and you've got yourself a rather terrifying woman. That being said, Saeko is well aware of how unstable she is and is terrified of it.
• High School Dx D: Freed Sellzen is a psychotic Exorcist attacks whoever gets on his nerves, or simply catches his fancy when he's "in the mood." In fact, he doesn't even believe in God and never did in the first place; he joined the Church and became an Exorcist solely because it gave him an outlet to kill things and satisfy his bloodlust without consequence.
• Higurashi: When They Cry has at least one such character at all times in the first season.
  • Rena, the "cleaver girl," who, after going off the deep end, holds her school hostage and very nearly blows it up. They can all also be the victims at other points, too.
  • Shion, a psycho Yandere who tortured several of her True Companions to death in two arcs.
• Inuyasha:
  • Jakotsu, the local Depraved Homosexual. He has an attraction to Inuyasha and in his sadistic version of love tries to torture him to death because of it.
  • As revealed by Naraku's detachment Musou, who is essentially Onigumo reborn, even before he became Naraku, Onigumo was a violent hedonist who killed whoever and whenever he wanted.
  • Inuyasha himself, when subject to his Superpowered Evil Side. Without the Tessaiga's anti-demon barrier to keep his demonic blood in check, it takes over when his life is in danger and reduces him to little more than a savage, bloodthirsty animal who will just keep on killing until he himself is killed or the Tessaiga is returned to him. This trait is best exemplified in episode 52, when he has several human bandits at his mercy: while said bandits are begging for their lives, Kagome notes with horror that Inuyasha is actually laughing as he prepares to kill them.
  • Inuyasha the Movie: Fire on the Mystic Island has Jura. In fact, all four war gods qualify for it, but Jura is particularly sadistic and brutal, and laughs when he kills his opponents or innocents.
• Many of the villains from JoJo's Bizarre Adventure are this:
  • Dio Brando was always a Sociopath, but he especially becomes this after turning into a vampire. And then he goes completely psychotic after drinking Joseph's blood.
  • Jack the Ripper from Phantom Blood, as should be expected from a vampiric version of one of history's most famous Serial Killers.
  • Santana from Battle Tendency, who, unlike his fellow Pillar Men, takes absolute glee in tearing his enemies apart.
  • A good chunk of the minor villains in Stardust Crusaders are this:
    • Devo is a Combat Sadomasochist who gets a lot of pleasure out of killing people.
    • J. Geil is a Serial Killer and Rapist and easily one of the most unhinged and vile villains of the Part.
    • Alessi, which is rather fitting, given his signature weapon is an axe.
    • Pet Shop makes it very clear he understands that Iggy doesn't care about trying to get in to DIO mansion, and he really doesn't care. He just wants Iggy dead.
  • Diamond is Unbreakable:
    • How does Angelo respond to a dog pooping near a tree and the owner not cleaning it up? Bite the dog's face off and spit its blood down the owner's mouth, of course.
    • Toshikazu Hazamada, because when you decide to gouge your friend's eye out over a disagreement about a manga, you probably have some issues.
    • Yukako Yamagishi can get violent toward anyone who she thinks is coming between her and Koichi, and even towards Koichi himself when he tried to escape her. After her defeat, she no longer reacts violently towards Koichi, but her temper can still be dangerous if she's angered by anyone else, as seen when she tries to kill Aya for ruining her looks.
    • Yoshikage Kira is a scarily realistic version of this trope. Right from his debut, it's very clear that there's something wrong with him. His Stand, Killer Queen, developed out of his desire to murder people, and when he isn't using his Stand, he's absolutely brutal to his enemies.
  • Golden Wind:
    • Cioccolata, a Sadist that believes watching the despair and death of other people is the key to true happiness, as he attempts to kill all of Rome. He also tortured the elderly through drugs and manipulation until they would commit suicide, and continued to kill people as a doctor.
    • Diavolo is even worse then Dio in this department. Unlike Dio, who could save face and was ungodly charismatic, Diavolo is The Paranoiac with contradictory Pride to boot. He doesn't want anyone to know he exists, but he also wants to Take Over the World.
  • Stone Ocean:
    • Narciso Anasui has a mysterious obsession with taking things apart, something that doesn't stop at inanimate objects. He's in Green Dolphin Street Prison because, when he found out his girlfriend was cheating on him, he tore her and her lover into bits so they would "never come back together again".
    • Lang Rangler seems reserved at first, but is actually an unhinged maniac with a Hair-Trigger Temper whose crime was that he stabbed his university professor 69 times in a fit of rage. He then tries to kill Jolyne and Weather by trapping them in a vacuum and explode their heads.
    • Sports Maxx has a respectable front in prison but he is also a psychopathic mobster who murdered a man via curb stomp before murdering Ermes Costello's sister for witnessing the scene. He becomes infinitely worse after becoming an undead zombie while retaining his sentience, brutally devouring another inmate before attempting to get his revenge on Ermes.
    • Though he was already sadistic, Survivor makes Viviano Westwood a brutal fighting machine hellbent on beating anyone to a pulp for no reason.
  • Urban Guerrilla from JoJolion is constantly screaming, and his gleeful threats about what he'll do to the heroes corpses do not help.
• Rune of Karakuridouji Ultimo is definitely heading this way. And to a lesser extent Ultimo...

• Kekkaishi gives us Kaguro, who starts out power hungry and then spirals into full-blown ax-crazy. Made even worse in his Ayakashi form since he has the ability to sprout a limitless supply of swords from his body, making him impossible to disarm without killing him.
• Kichikujima- The Family on the Island with their murders,cannibalizes,and turning people into monsters.
  • Takahisa becomes this when he gains the same powers as the family.
• Captain Continental of Legend of the Blue Wolves. He tries to sexually subdue subordinates that take his fancy and if they happen to refuse him he whips them and beats them half to death unless they submit. And if even that doesn't work he just rapes them, beats them, and forces them to participate in various sexual activities with absolutely no remorse. In fact, he seems to get sexual pleasure (if his constant Slasher Smile is any indication) out of breaking, beating up, and raping people. And at one point, he ran at Leonard, all the while screaming like a savage when Leonard tried to stop him from continuing his No-Holds-Barred Beatdown on Jonathan.
• Cypha of Huckebein from Magical Record Lyrical Nanoha Force. Her thinking has always been that way, but it get worse when she saw Signum.
• Maria no Danzai:
  • Nozomu Okaya is not only a sadistic and sociopathic individual, his mindset is so warped that his only response to killing Kiritaka is lament that he can no longer keep terrorizing him. The other bullies, all violent and cruel themselves, are terrified of him. And to top it off, he never shows strong emotion towards anything, not even the possibility of suffering consequences for his actions like the other bullies, showcasing how deeply disturbed he is.
  • Kinugawa's default response to anyone offending him even slightly is to retaliate with overwhelming, disproportionate violence.
    • One time he kneed Kiritaka in the stomach to the point of forcing him to vomit, before strangling him while he was in the middle of the act, for daring to complain that he was stealing his videogame console. The act was so extreme that even Kowase found it off-putting.
    • While searching for Iijima, Kinugawa beats up a random guy for looking too much like him, as if it was somehow his fault that they had a similar hairstyle and build. When a security guard shows up to break them up, Kinugawa starts to beat him up, as well.
    • Kinugawa curses Iijima for turning up dead before he could reach him despite very likely not being responsible for Kowase and Shikimi's deaths. Clearly, Kinugawa isn't comfortable in any situation unless he's grinding someone, anyone, beneath his heel.
• Mobile Suit Gundam 00:
  • The psychotic alter ego of Allelujah Haptism, Hallelujah, who takes this trope and runs lightyears with it.
  • Michael Trinity, Nena's overprotective older brother and blood-thirsty pilot of the Throne Zwei (who always goes around with his trusty combat knife when off-duty), in Gundam 00.
  • Michael's killer, Ali Al-Saachez, a sadistic, sociopathic Blood Knight and Psycho for Hire who commits horrific and random atrocities for his own amusement.
• Mobile Suit Gundam Age has Desil Galette, a seven year old Ace Pilot who defines the Enfant Terrible trope. This young sociopathic Blood Knight is obsessed with battles and views the soldiers as toys at his disposal. And he's terrifying, especially when he's about to go to battle.◊
• Desil and Ali Al-Saachez are both modelled on Yazan Gable of Mobile Suit Zeta Gundam, a Sociopathic Soldier and Blood Knight who joined the army specifically so that he could kill people. He's not the Card-Carrying Villain that Ali is, nor does he have Desil's portrayal of an Enfant Terrible, but he is still out of his mind, chuckling to himself as he cuts down his victims. He's so crazy that he's able to be a Badass Normal in a series where most people have Psychic Powers, Super Prototypes or both.
• There's also Ali Al-Saachez's other predecessor, Katejina Loos from Mobile Suit Victory Gundam. Yes, the one behind the infamous Bikini Babe Assault team.
• Drugs and abuse have made all of the Extended in Mobile Suit Gundam SEED and Mobile Suit Gundam Seed Destiny this way as well, with Shani being perhaps the best example. Azrael reveals this side of himself during an epic Villainous Breakdown and his successor, Djibril also has shades of this at times, especially whenever he's near a Weapon of Mass Destruction. And Rau Le Creuset, who tried to blow up the world.
• Monster: Johan Liebert is an extremely subdued version of this. He never goes visibly nuts, is very soft-spoken, polite, and overall calm at almost all times. However, if you associate with him, you will die. If you meet him, you will die. If you make eye contact, you will die. If you so much as think about him, you will die. And if you won't think of him, he just has to think about you, and you'll be just as dead.
  • Also his unquestionably loyal hitman, Roberto, though even he pales in the face of Johan's bloodlust.
• Given the setting of My Hero Academia, it should be no surprise that a good number of the villains are complete psychopaths.
  • Tomura Shigaraki, The Heavy of the League of Villains, is very mentally unstable and willing to kill anyone in a flash with his insanely dangerous Decay Quirk, which is not helped by his childish demeanor.
  • Himiko Toga and Dabi, a duo of serial killers who join the League of Villains due to Stain's influence. Dabi is reserved and mature for the most part, but he's still a murderous sadist who has burned over 30 innocent people alive for fun. Toga, on the other hand, is a complete freaking lunatic. She's a Yandere to the extreme, grotesquely butchering and brutalizing anyone she falls in love with For the Evulz...the problem being, she "falls in love" way too easily, as seen when she proclaims Tsuyu to be her best friend while trying to gruesomely stab her to death.
  • Moonfish, an escaped death row inmate, who constantly mutters about wanting to feast on the flesh of his foes, and has the teeth to do it, too. His villain outfit even includes a straitjacket.
  • However, all of them are absolutely cuddly compared to Goto Imasuji, AKA Muscular (except for Toga, who's even crazier than he is), who is less of a human being and more like a rabid animal with no loyalty towards one side or the other. He has killed countless innocent civilians, sadistically beat Kouta's parents (the Water Hose duo) to death during one of his rampages, and attempts to kill Kouta himself without hesitation or provocation, before Midoriya intervenes. During their second bout, Midoriya asks if there's some sort of reason or motivation for his terrorism, in an attempt to get through to him. Muscular shuts him down, saying he has none and never did, nor does he even care about the League of Villains — he just wants to KILL, and that's that.
• Naruto:
  • Gaara of the Desert, before he loses to Naruto.
  • Hidan is also pretty Ax Crazy. And a masochist, to boot.
  • Kakuzu when he gets mad becomes an Omnicidal Maniac.
  • Deidara is also pretty crazy as evidenced when he tried to kill both himself and Sasuke via blowing them up.
  • Orochimaru and his Sound 4 squad display various levels of this trope. Ukon and Sakon, in particular, like to play with their victims.
  • Sasuke displayed these tendencies after getting Orochimaru's curse seal and attempting to leave Konoha, but it's from chapter 480 onwards where he really falls into this trope due to Sanity Slippage and Tobi's influence. As if deciding to kill every last person in Konoha wasn't enough he's been reduced to a homicidal maniac who will kill anyone if they become the least bit inconvenient to him. Danzo's Shut Up, Hannibal! didn't exactly help, either.
    • It's actually even worse than that sounds. He rants about how killing Danzo felt great, and he apparently thinks that the people of Konoha laughing and having fun in his memories are mocking the deaths of the Uchiha clan. He wants to kill them all because they aren't as miserable as he is.
  • Nine-Tails, AKA Kurama, is a monster whenever he's angry — and a sociopath on the rare occasions he's happy. At least, until Naruto trounced his ass, swiped some of his chakra, and then befriended him, taking the edge off his personality and changing him into a trusting ally of his host.
• Negima! Magister Negi Magi:
  • In this series, most evil characters were at least cold or sensible, and at the most just a bit odd. That is till Tsukuyomi, deprived of seeing her sempai Setsuna for months turned from merely fight-happy with a touch of blood-lust to a complete Psycho Lesbian for her rival swordswoman.
  • Chachazero is pretty axe crazy too.
  • Ladies and Gentlemen, meet Quartum!
  • And now we have Secundum!
• Neon Genesis Evangelion:
  • Shinji whenever he gets angry, breaks down, or gets significantly stressed. He's by far the worst culprit, because when he had a chance to wish for paradise in Lillith's egg, he wished for everyone in the world to die — and it happened. He also masturbated to Asuka while she was in a coma from starving herself to death, possibly even slitting her wrists, and throttled her with intent to kill when she shunned him during Instrumentality.
  • Asuka is a hazard to the health of anyone or anything that isn't named "Kaji", "Shinji" or "Hikari" if they push her buttons. This effect is amplified if she is in Nigouki ("Unit 02"), and passes the horror threshold when she has to fight 9 Evangelions at once. To illustrate this, she holds an enemy Evangelion above her head, cracks it open, and bathes in its blood with a sadistic grin on her face. But the girl had already been through personal childhood hell and pushed over the edge, thanks to the mortifying Mind Rape she got from Arael, and she was ready to wreak havoc on the world around her as a way to curb her pent up angst and exact a little revenge on her enemies.
  • There's the Dummy Plug System, which is powered by the seemingly docile Ayanami Rei.
  • The fancy new movies give us Mari Makinami. Unlike many of the other examples here, she's a genuinely nice girl as long as you don't let her anywhere near an EVA. If she does pilot one, she quickly turns out to be Ax-Crazy to utterly nightmarish levels.
  • Shogouki ("Unit 01") itself is prone to spontaneous acts of horrific violence and cannibalism against Angels and fellow Evas when it slips into Berserker Mode.
  • Asuka's mother Kyouko after piloting EVA 02 and having a part of her soul sucked into it. The half stuck in the EVA was the kind, loving side. The half left in her body turned deranged and psychotic, which led to her hanging herself with a doll she believed was Asuka.
• Mizuki Asahina and Hiruko in Nightmare Inspector say that dangerous sleepwalkers running into Ginseikan is a common occurrence.
• Nijigahara Holograph features an unnamed man who is a figure of violence throughout the story. He tried to rape Arié as a child, and struck Arié's teacher Sakaki with a cinderblock when she intervened, causing facial injuries that ruined her left eye. He's also implied to have considered killing Arié's classmate Amahiko after burning his own house down. As an adult, he assaults his employee Maki and probably would have killed her had he not been stopped by one of Maki's former classmates.
• All over the place in One Piece, starting with a minor case in the appropriately themed and appropriately named Axe-Hand Morgan. Some examples:
  • Kuro won't think twice about killing to further his plans, and tried to kill his pirate crew and a Delicate and Sickly young girl to wipe out any trace of his old life.
  • Shiryu of the Rain was once a guard at Impel Down, but his love of killing prisoners eventually leads him into jail himself. The first thing he does when he gets out after Magellan authorizes his release to deal with Blackbeard is to kill all guards that come his way.
  • Eneru wants to knock his Floating Continent homeland out of the sky, and already did this to the island of his birth. Out of them all, he's probably the most legitimately insane.
  • Probably the worst of the lot is Rob Lucci, who was sent in at age 13 to deal with a hostage situation where 500 soldiers were captured by pirates. He kills everybody involved.
  • No, no. In a series loaded with violent psychopaths, Akainu stands out among them all. His first real onscreen appearance has him ordering the destruction of a ship full of innocents because there might be a couple scholars aboard; from there, he only gets crazier and crazier, responding to every single threat with absolutely staggering force, regardless of the collateral damage it causes. We finally get to see just how truly nuts he is, however, when he responds to Coby's call for the violence to stop by immediately trying to kill him. After the Time Skip, it's noted that Aokiji, after losing the position of Fleet Admiral to Akainu after a days-long battle, promptly resigned from the Marines rather than work under him.
  • Bartolomeo. He is more anti-social than Eustass Kid, he drops a fake publicum to the audience in his first battle, though, it is known that he has bombed innocent citizens and grilled pirates on a skewer and broadcasted it. He even cuts the tongue of a noble off, just because that person talks shit about Luffy. That's right. This crazy guy is a Luffy Fanboy since the Logue Town arc.
  • But the one of all trades who tops everyone on this list in bona fide insanity would be Donquixote Doflamingo. As a child born to one of the Wolrd Nobles he was a self centered arrogant little twerp always hanging on his Daddy & Mommy who interestingly enough weren't rotten to their core like the rest of the herd. But when he went around blabbing to a bunch of Tenryubito hating citizens about his high class status left and right the latter events of him and his family getting chased to the ends of the earth, their home getting ransacked, his mother dying of sickness all of which culminating in him remaining kin being strung up and burned alive caused him to snap violently while cursing everyone of the people who persecuted him; stating he'd survive just so he can kill them all horribly. To say the least, as disconcerting of a concept it is that a 10- to 12-year-old could spout such hateful bile towards an angry mob still pales in comparison to how he would eventually grow to murder both his father and brother and eventually cause all sorts of chaos across the ocean as he came of age. Ripping off a priceless national treasure from the world nobles forcing himself back into their circle of sorts, usurping a country formerly belonging to a rival family as well as running said family name into the dirt, run a racket of weapons trade and experimentation with a soulless scientist between one of the four emperors to spark wars across continents among a loooooong list of other very horrific deeds he's responsible for and all while cackling like a lunatic while licking his lips to boot. Even more so as all of his plans come to naught due to the Strawhats unmasking him for the demon he is as he instigates an insane manhunt using his own subjects against them and the remnants of the Riku Family, eventually ending in him just sentencing every living soul in Dressrosa to death by horrible evisceration due to his Birdcage.
  • Jack "the Drought", one of Kaido's three most powerful subordinates, is probably one of the single most bloodthirsty pirates in the entire world. He barely needs any sort of excuse to start killing and wrecking everything in sight that isn't on his side, such as minor snags in his plans, attempts to negotiate or even the suggestion he might be picking a fight he cannot win. And when he gets started, he does not stop until the entire nation unfortunate enough to have him around has been toppled and burned to the ground by his own hand. While he nominally obeys his Emperor's commands, all he really wants is to destroy. And it all ends up working against him because he's too overconfident and bloodthirsty to know when to stop and back down; sure, trying to kill an elephant carrying an entire nation full of people on its back would be quite an epitome of pure annihilation, but it's also a recipe to getting your entire fleet one-shotted, and that's exactly what happened when he tried it.
• Clementine of Overlord (2012) is always giggling as she murders and tortures a number of people for no real reason other than wanting to. She's also fully willing to go Team Killer so Khajiit, who knows her, is prepared to defend himself from attempted murder when he berates her.
• Harry of Outlaw Star. He gets better... sort of.
• Many a character in PandoraHearts falls into this at one point or another.
  • Best expressions of crazyness on the main characters would be Oz when he is usurping Alice's power.....he makes this face◊.
  • Lacie. How crazy is she? She kills two men that were threatening her and Jack and dances and sings in their blood.
• In Parasyte you can see Gotou. Actually, all the parasites are man-eaters (with two exceptions), but Gotou is driven by a savage hatred for mankind, and always targets one massacre after another. The reason for this is probably that he has five parasites in a body, each one of which is to kill and eat humans.
• Peacemaker Kurogane: In the manga, Suzu becomes both Ax Crazy and gay after an old man rapes him.
• Perfect Blue: Me-Mania, Mima perhaps and Rumi.
• Please Save My Earth has two characters that qualify, Rin and Shion, and the best part is that they share a body, or rather that one is the reincarnation of the other absorbing the reincarnation's personality. It can get a little confusing...
• Psyren has Yusuka, Sakurako's Superpowered Evil Side, and Eiji Kise.
• Kirika from Puella Magi Oriko Magica. She's an Ax Crazy Dark Magical Girl Psycho Lesbian Serial Killer. Wow.
  • From the main series: Kyouko and Sayaka have various shades of Ax-Craziness at various points in the story. Sayaka especially goes psycho as the series goes on, eventually becoming a witch and having to be put down. Yeah, it's that kind of story.
    • The manga makes it worse, just with some of the facial expressions at some points. Probably helps that the manga was released alongside the anime and so the artist knew little more than the audience at the time of drawing it, so not knowing who was really good and who was really bad, she apparently just decided to make everyone insane... which isn't such a bad thing, really.
• Fanon often makes the various characters of Ranma ½ into this... which is actually a fairly easy leap to make, given that Comedic Sociopathy is a common mode of humor and all of the characters are JerkAsses, with or without a golden heart to soften things. Ryoga enters the series by ambushing Ranma from out of nowhere, apparently intent on viciously hurting Ranma... over bread. Shampoo chases Ranma across China seeking to kill "her" in order to avenge her lost honor, then is willing to consider killing her rivals for his hand. Mousse not only routinely tries to kill Ranma because Shampoo isn't in love with Mousse, but has no qualms about hurling volleys of bladed objects in all directions... in the middle of crowds and on public streets. Ranma's mother, Nodoka Saotome, wants desperately to meet the child who grew up without her... yet is so dedicated to upholding an immorally vague Seppuku contract that she carries a sword with her wherever she goes, and is almost frightening in her eagerness to pull it out.
• Hibari (more Tonfa Crazy though), Mukuro, Byakuran, Birds, Belphegor, Rasiel, Glo, Xinia, Xanxus, and Daemon Spade from Reborn! (2004).
• Saionji and Nanami fall into this during their respective duels with the titular Utena of Revolutionary Girl Utena.
• Routier/Ludie of Chapter 47 of Part 2 of Rosario + Vampire. She attacks Fang Fang with a chainsaw while smiling and blushing. Eventually delves into Combat Sadomasochist territory when she has an ahegao-inducing orgasm from it.
  • Tsukune's Ghoul form definitely counts, what with all the bloodshed, insane laughter, and repeated use of the word 'kill'.
  • Akuha/Aqua Shuzen of the second manga season is shaping up to be one of these due to being quite a Yandere for Moka. She has a very dark and violent side, and will annihilate anyone who gets in her way or pisses her off. She goes as far as to threaten the lives of Tsukune and his friends when they try to take Moka from her and completely loses her shit when she sees Moka and Tsukune hug.
  • Gyokuro Shuzen, as proven by this line:
    Gyokuro: Kill the Humans, slice their meat, cut their bones, and use their blood and guts to hold the most extravagant party. Come now! And we will engrave into their corpses, our everlasting fantasy world!
  • Kanade Kamiya of Fairy Tale. He openly admits that he kills humans simply to pass the time and clear his head, even confessing that his Goal in Life is to create a mountain of human corpses.
• Sakurako and sometimes Katsuragi from Sakura Gari.
• The three brothers after Mugen in the final episodes of Samurai Champloo. Every one of the three (except possibly the eldest, Toube) is a complete maniac; Denkibou found it impossible to contain himself once Mugen was in sight, and Umanosuke is a sadistic bastard with several Kick the Dog moments in a row.
• About ninety percent of the cast of Samurai Deeper Kyo, including and perhaps especially the main character.
• Sekai and Kotonoha, two almost-protagonists from School Days. Especially Kotonoha (in the anime and game).
• Mayuka, in the second Tenchi Muyo! movie, after Yuzuha pushes her berserk button. Sasami's love vibrations break her out of it however, and she gets better. Unfortunately, Yuzuha does not. As Tenchi's a twit.
  • Yuzuha herself also fits the bill, as the only thing that would've stopped her misaimed vengeance fueled rampage was the only thing nobody thought to give her. You'd think Ryoko at least would have figured this out with how often she surprises everyone else with Marshmallow Hell when drunk. Perhaps they should have given her a shot of whiskey before heading to Yuzuha's dimension.
• Chiri Kitsu from Sayonara, Zetsubou-Sensei has been Flanderized into this. Originally she'd get extremely annoyed and occasionally violent if things weren't done properly, then in the later episodes she would regularly beat people with a shovel for doing things improperly, and in the latest season seem to have dropped all pretexts and become generally Ax Crazy.
  • At one point in the first or second series (the Hot Springs Episode) she decided that humanity is an impediment to true order that must be purged, and then...
• Soul Eater has several characters like this. Crona and Maka act this way under the influence of the black blood. When given the opportunity, Stein counts as this even without the influence of the Corruption.
  • Patty is like this normally.
• Sword Art Online:
  • Sugou Nobuyuki's childish, sickening obsession of dominating everyone around him leads him to trap 300 people to perform sadistic mind games with them, almost rape Asuna while trying to make Kirito watch and he actually tries to murder Kirito in real-life after he gets his ass beat.
  • The members of Laughing Coffin are all psychopathic murderers who lust for bloodshed and would rather let themselves be killed in battle than surrendering. Their founder, PoH, is the worst of them all, utterly fixated on killing people as sadistically as he can. PoH takes it to Stupid Evil levels, as he can't stop antagonizing Kirito's gang or keep a lid on his bloodlust even when doing so is in his best interests.
  • Gabriel Miller is the biggest example in the series; even at his best, he's far more sadistic and deranged than Laughing Coffin at their absolute worst. To put it into perspective, whilst PoH's kills number in the triple-digits, the vast majority of them were done in SAO. Gabriel had already committed his first murder when he was still a child, and it only progressed from there, such as "experimenting" on as much as more than 100 people in real life to satisfy his curiosity of the human soul.
• Tokyo Ghoul features quite a few violently disturbed individuals, on both sides of the species divide.
  • After being tortured for 10 days, Kaneki begins a slow spiral into greater and greater extremes of violence and madness. He reaches his pinnacle when he mutates into an incomplete Kakuja, babbling nonsensically about the various horrors he's endured over the course of the series while trying to violently murder Shinohara. The veteran Investigator states he's by the far the craziest Ghoul he's ever faced.
  • Yamori, the sadistic Torture Technician responsible for Kaneki's broken mind. Himself a victim of torture, he is normally considered a violent brute but when he's excited, he starts talking to himself and can only be calmed down by shoving his arm through Nico's stomach.
  • Kureo Mado is a human example of the trope, taking extreme pleasure in brutalizing Ghouls. He gives an Evil Laugh while taunting a little girl about how he's going to kill her using weapons he made out of her parents — after using her mother's severed arm to lure her into a trap.
  • Another human example is Juuzou Suzuya, a very disturbed youth raised by Ghouls. He is noted for his violent behavior, both towards others and himself. When rampaging, he's prone to extreme levels of violence while giggling or encouraging his victims to "hang in there". Over the course of the series, he begins to improve under Shinohara's care.
  • In the sequel, Seidou Takizawa has become this for reasons not yet elaborated on. He spends several chapters on a killing spree, ripping a man's head off and comparing it to "harvesting fresh pineapples" and referring to his victims' brains as "tasty jam". When one of the Red Shirts recognizes him as having once given lectures to her class, she attempts to calm him down. He cheerfully recalls she was the girl that kept talking during the lecture, and when she agrees.....he decapitates her while scolding her for not paying attention in class.
  • The sequel also has a surprising one in Mutsuki Tooru. Chapter 79 heavily implies that the abuse Mutsuki suffered by his family led to him developing a psychotic alternate persona that murdered his family with an axe. This continued later, with him murdering animals, keeping their body parts in a jar, and repressing the memories later. This inner side of himself unleashes a terribly monstrous ghoul that destroys anything that would threaten their continued existence. This side of himself has also cannabilized other corpses during the Auction arc. There's also the after-report which describes the most gruesome and graphic mutilation in the entire series. Mutsuki chopped Torso's head off, then shoved something up his rectum all the way into his throat, chopped off his limbs and stabbed them through at several points, castrated him and shoved his genitals into the hole where his nose used to be, and cut out his eyes and tongue.
• After he realizes that Ichigo loves Masaya and not him, Kisshu from Tokyo Mew Mew becomes this way via Love Makes You Crazy. In Episode 45, after Ichigo refuses to leave Earth with him, he goes into a rage and tells Ichigo that if he can't have her, then he'll kill her. He even employs the usage of a Slasher Smile.
• Displaying once again the Clover organization's terrible hiring practices, in the Triangle Heart 3: Sweet Songs Forever OVA, they send out a Psycho for Hire named Slicer who lives for violence and blood.
• Many a villain on Trigun like Knives is this.
• By the end of the third arc of Umineko: When They Cry, Eva has gone off the deep end and shoots Battler. Probably.
• Under Grand Hotel: Swordfish, on account of him being such a Yandere for Sen. He threatens anyone who expresses an interest in Sen with death, has sex with Sen to the point where it nearly kills Sen, tries to strangle him, kills the guys who raped Sen saying that he did it for Sen's sake even after Sen told him not to kill them, moves out of Sen's room and lets a rapist move in when angry with Sen, and slices the throat of another one of Sen's rapists right in front of him while saying "I love you, Sen." This being after he tried to get Sen to kill the guy himself but Sen refused.
• Hauenkua in Utawarerumono. He drives a giant mecha and giggles uncontrollably while squishing innocent people with it. He encourages invading countries just for more opportunities to use said mecha and pouts like a little kid if he can't. And yet he's still one of the most influential court advisers.
• In Vagabond by Takehiko Inoue, Chapter 162 (Volume 18) reveals that in the aftermath of the battle of Sekigahara, the future Miyamoto Musashi (then Shinmen Takezou) is rather Ax Crazy. Otherwise though, he avoids the trope and the regular portions of the story had shown that Musashi had long grown out of this.

• Thorkell the Tall from Vinland Saga butchers a bunch of people he's been chasing for trying to surrender. With a pair of great axes no less. He's also known for killing his own men for being either cowards, or disrespectful to his enemies.
• Dilandau from The Vision of Escaflowne fits this trope to a T. To get a better understanding, here's a handy little video. Halfway through his attack on Van, he just sort of forgets about Van and goes a little fire-happy.
• Witchblade: Shiori, one of the Cloneblades, becomes Ax Crazy after fighting Masane Amaha. After going off the deep end, she murders a nurse, has sex with a corpse, and tries to rape Takayama, the protagonist's boss.

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