Sora from Air Gear. He's an absolute bastard who emotionally abused his brother and his girlfriend, the two people who loved him and trusted him most. He even brainwashed the latter, and when they stopped being useful to him, he threw them aside like trash. While he does have a slightly sympathetic past that paints him as a failure, this justification rings hollow when it's shown that he's orders of magnitude more powerful than every single rider except Ikki. Furthermore, he remorselessly killed several friends who were once in the same situation as him and who even helped him, all in the name of gaining personal power. He is either directly or indirectly responsible for all of the deaths in the series and he doesn't even think highly enough of the lives he's taken to feel something like satisfaction, let alone remorse or regret. After he is defeated, he spits in the face of redemption and even tries to turn his girlfriend into a bomb so that he could kill everyone in the tower in which he was fighting so that even if he were to lose, his opponents wouldn't win, and he only gave up afterwards when faced with overwhelming power that convinced him he would never be able to succeed. Even his terrifyingly Ax-Crazy brother looks tame and compassionate in comparison.
It was suspected since his very first appearences that MykageTowano from Aquarion Evol was bad news, and this impression turned out to be absolutely right. Sure, it was clear that he was never of Altair's side, and was just pursuing his own interests... and then, in Episode 13, he crossed the Moral Event Horizon (or, at least, got a pretty big Kick the Dog moment) by killing his Anti-Villain subordinate Jin right when he was about to have an Heel-Face Turn, in front of the girl who loved him no less. And then Mykage even had the gall to perform an eulogy for Jin in front of the inhabitants of Altair, in order to better manipulate them to his will. With the series coming to a close, he's now pulling out all the stops, and it's clear that there's no low he would not sink to in order to get his hands on the original Aquarion and have his revenge on Amata and Kagura - for the "heinous crime" of being the two halves of the Winged Hound Pollon (It Makes Sense in Context). It was not bad enough that he manipulated Zessica when she was at her most vulnerable in order to make her his pawn and pull a Grand Theft Me on her, but in Episode 24, he went as far as murder Alicia just to gain a momentary distraction, and then mind control Kagura, the resident Jerkass Woobie, into killing his own father Izumo (another Anti-Villain). In fact, Mykage is an example of this being a Justified Trope, as he turns out to be the incarnation of the hatred harboring within Touma (the Big Bad of the previous series, so it makes sense that he's pretty much Made of Evil.
From Armored Trooper VOTOMS, human experimentation is no problem for Pailsen. His experiments on Sunsa involve burning hundreds of children to death to test them for the "unique survivalist" trait. In addition, the Red Shoulders themselves are essentially the Waffen-SS, and he forces them to fight and kill each other for his research. The Brainwashed and Crazy Zaki is a result of his other experiments, and later becomes the basis for PS research. He manipulates Wockam into starting a useless battle that leaves 120,000,000 Melkians and a huge number of Balarant dead, and feels no guilt about it.
Luuza Luft from Aura Battler Dunbine (by Yoshiyuki Tomino, again), an Evil Matriarch of the worst kind who plots against her own husband (who, despite being the Big Bad, comes across as more sympathetic than her) to have the power all to herself and her lover Bishott (and it is doubtful she has any loyalty to him as well). She will do absolutely anything to get what she wants, including murdering her own daughter in cold blood, which she threatens to do in an early episode and actually does prior to the bloody finale. Her Karmic Deathat the hands of Rimru's heartbroken boyfriend is both brutal and highly satisfying.
Szilard Quates, the immortal Mad Scientist and alchemist. Szilard believes in knowledge being the most important commodity in the world, and to that ends devours immortals for their knowledge. After becoming immortal, Szilard devoured the brother of the immortals' leader before being driven away. Szilard creates Artificial Human homunculi to serve him, abusing them mentally and physically. He also developed his own immortal potion which he feeds to intelligent people before devouring them to amass their knowledge without working for it. He isn't above straight up murder for his purposes either. It's mentioned at one point he gains no greater joy than in devouring others.
Fermet, another of the original immortals, was the caretaker of the immortal child Czeslaw Meyer. However, once they were immortal, Fermet revealed his true colors as a vicious sadist who Would Hurt a Child by torturing Czeslaw for years and years, with new, inventive ways, ranging from throwing him into a roaring fireplace, to making him bathe in acid. The excuse was to test the limits of immortality. The reality was simply sadism.
Baki the Grappler's Yujiro Hanma, definitely. He beat the everloving crap out of his own son, titular Baki Hanma, so that Baki's entire body, except his face, is covered in scars, killed Baki's mother, and then beat up Baki's friends and allies just to show he could, ALL IN LESS THAN AN HOUR. Yujiro has enough Charles Atlas Superpower to be effectively untouchable by police and authorities (even the military) and uses his abilities to do whatever suits his fancy without repercussions to put relentless psychological pressure on his son (including, but not limited to, threatening to kill his girlfriend if Baki fails his expectations, and to subject Baki's possible children to the same abuse he had piled on Baki), just to create an opponent worthy of himself. And that's not counting the thousands of people he murdered since he was at least sixteen, or the fact that every fight we've seen him in ended in him delivering a No-Holds-Barred Beatdown while grinning like a maniac, just because it's the sadistic bastard's idea of fun. Or how he treats his other son (i.e. less than dirt on his slippers). Baki puts himself through Training from Hell and a series of incredibly brutal martial arts tournaments just to become able to protect himself and his loved ones from Yujiro. The worst part is that Yujiro hasn't got his comeuppance yet - after about 600+ chapters - although this is somewhat understandable, as his defeat probably would end the series.
King Zenoheld's original plan was to enslave the Bakugan to use them as entertainment against their will, passing them off as inanimate playthings. When they got free and were revealed to be sentient beings (a fact that horrified a large number of his followers), his response was to bring in the Bakugan Extermination System to perform a genocide on them simply because he lost. When that's stopped, he has a Villainous Breakdown and goes Omnicidal Maniac, trying to destroy the entire universe, all because the Bakugan got their freedom from him. He also treated his son like a disposable soldier, which came back to bite him in the end.
Emperor Barodius is a power-obsessed tyrant who declared war on and earnest to wipe out a peaceful planet to gain more power than he already had. After his defeat by the heroes and imprisonment in an alternate universe for eternity by Code Eve for genocide, He took the alias Mag Mel and began using a Psychic Link he formed with Dan and Drago to leech of their energy to free himslef and Mind Rape them with terrible visions of the destruction he intends to cause on Earth. He's also a firm believer in You Have Failed Me and You Have Outlived Your Usefulness as his disposal of his Co-Dragons Mistress Sellon,even though she'd completed her assignment perfectly and hadn't failed him, and Anubius, robbing him the honor of dying in battle with Dan. If he doesn't kill you for either of those things he brainwashes you into his loyal puppet, as shown when he kidnapped a large number of kids from Bakugan Interspace to brainwash into his loyal soldiers.
Tenzen Yakushiji, the Number Two of the Iga Clan in the Ninja War series Basilisk absolutely leaps heads and shoulders over any of his fellow ninja for sadism, cruelty, greed and monstrosity. Secretly a centuries old former Koga himself, Tenzen has nothing but loathing for the Koga and little use for his own Clan. When Princess Oboro seals away her mystic eyes, Tenzen attempts to rape her before being stopped by a Koga attack. Engaging the Koga ninja, Gyobu Kasumi, Tenzen hears how Gyobu's father was murdered by Iga and in their duel, tricks Gyobu into striking at a child, forcing the boy's father to take a fatal blow, solely so the child's pain rattles Gyobu enough for Tenzen to win. Tenzen sadistically toys with other ninja and even abandons his loyal student Koshiro because Koshiro had objected to his actions with Oboro. When Tenzen captures the beautiful Koga shinobi, Kagero, because her powers make raping her impossible, he brutally tortures her by impaling her with needles, before attempting to rape Oboro with intent of forcing her to dispel Kagero's powers to force himself on her as well. When he faces off with the young Koga leader Gennosuke, Tenzen reveals his intent to destroy all in his path, end the war victoriously and force Oboro to be his bride while he rules Japan from the shadows through the young shogun.
Yonemi Kamon from Battle Royale is the administrator of the Battle Royale Program, where high school students are forced to kill one another. His hobbies are watching students kill each other, killing students and joking about said students' deaths. After taking a schoolbus full of students including Shuuya and Yoshio to be transported into the Program, he later tells he also went and raped an orphanage director Shuuya and Yoshio had grown close to (just in case you didn't already get he's evil). What makes Yonemi so noteworthy as a villain is that unlike the movie portrayal of the Director, he doesn't even pretend to buy into the crap about maintaining order or protecting the honour of the Empire. He enjoys raping and killing, and he's a huge fan of the Program because he gets to see teenagers deal with gut-wrenching emotions before dying horribly. He's so heinous, even soldiers are visibly nervous around him.
In Black Bird, we have Kuzonoha Shuuhei. While all the male characters are a bunch ofmisogynist jerks, Shuuhei stands out among the whole bunch as the most cruel and depraved. Following a failed attempt to rape MisaoHarada, he severely wounds her to facilitate her abduction from Kyo's dojo. By his own admission, he has no qualms about injuring her as long as she is able to provide him with an heir that will consolidate his position as the head of his clan. Only a total bastard like this can make a Bastard Boyfriend like Kyo seem like a Knight in Shining Armor to Misao by comparison.
Lord Trancy from episode 8 of season 2. He has a bunch of boys captured and made into his sex slaves right up until he dies of old age. He even gets rid of those that are "broken", calls the boys "dolls", and beats them. He's the reason why Jim Macken/Alois Trancy (the Sole Survivor among those poor boys) is...thewayheis.
The unnamed doctor from Black Cat. A sadisticMad Scientist with a penchant for human testing, The Doctor conducts a number of awful experiments over the course of the series, transforming a man into a werewolf, brainwashing captured bounty hunters into fighting their friends, and trapping Train in a illusory world where the very people he cares about most are trying to kill him. Fascinated by ten-year old Eve's power to shapeshift, The Doctor kidnaps her towards the end of the series, planning to vivisect her in order to discover how her abilities work. Loyal only to himself and driven by his need to know, The Doctor outshines even Big Bad Creed Diskenth when it comes to villainy.
Black Lagoon is a Crapsack World, filled with terrible people, but none manage to be quite as hateful (or fundamentally petty) as Chaka. A Yakuza lieutenant with a penchant for Domestic Abuse, Chaka makes his entrance beating up Rock in an effort to impress Revy. When the battle between the Yakuza and the Russian mob goes badly for the Yakuza, Chaka kidnaps and brutalises Yukio, his boss' teenage daughter, beating her bloody, and planning to sell her to a sexual sadist as part of his plan to take control of the remnants of the Yakuza. When Revy and Ginji arrive to bail her out, Chaka shoots through his own men to try and get at them, kills another man for daring to try and run away, then runs away himself, leaving his men to be massacred. Childish, stupid, and completely out of his depth, Chaka manages to make an impression only through his complete lack of conscience, loyalty, or human decency.
Blade of the Immortal brings us the truly despicable Shira, who's just around the level of Yujiro Hanma in his depravity. He murders a Hooker with a Heart of Goldwho was just in the business to pay for her mother's medicine, because he enjoys cutting up women and making their muscles seize up during sex. After that, he savagely, gleefully tortures an assassin with his saw-edged sword and severs the leg of the unarmed woman that led him and Rin to the trap. After losing both of his hands to Manji, Shira is saved by his employer, who asks if he's chosen a new set of hands yet; he raped a hooker (to death) and young boy (who provides his new pair of hands) all night long in his cell. Later on, he mutilates and brutally cuts a woman to pieces, gags her with her own dismembered hand, impales her through the breasts, and rapes her to death, while eating parts of her corpse. After finding Rin, he strips her of everything but an open shirt, tied huge rocks to her feet and left her tied to a dock, half submerged in water during winter. It's exceptional how well Shira can execute numerous baits of actually appearing sincere. His heartfelt speech to Rin aims to drive in how he killed and ate her dog. Helping Renzo seek revenge is aiming to Force Renzo to be a sex toy for Shira's abusive benefit. Truly emotional pleading of Renzo to call off his revenge ends with a spiteful "never listen to men like me!", which thus end up putting the latter in even worse a state than before. Eventually, Shira gets saddled with one of the most satisfying ends ever written for a manga.
While Diva, the Evil Twin of heroine Saya has her share of crimes in Blood+, the true monster is her Chevalier Amshel Goldsmith, an unscrupulous Mad Scientist who values Diva solely for his scientific curiosity. Amshel's experiments with Joel Goldsmith helped to turn Diva into the Ax-Crazy creature we see in present. Amshel handles most of the planning for Diva's team, and has no compunction killing anyone he thinks is a threat- even Diva's own Chevaliers. Amshel's actions lean to numerous deaths from the Chiropteran outbreaks and even when Diva is dead, all Amshel cares about is stealing her baby daughters to experiment on later.
Gostello from Blue Comet SPT Layzner, a Gradosian officer who takes We Have ReservesUp to Eleven - his only real joy is killing people, the more defenseless the better, and his lust for blood is such that he often murders his own men just to get a kick out of it. Logic tells him that killing his own men might prove detrimental to him as well...but he's so Ax-Crazy that he just doesn't care. To cement his Complete Monster status, in fact, he often refers to his victims as "prey" or "meat" and gets all tingly at the prospect of murdering people in the most gruesome of ways. Truly a monster, if there ever was one in such a dark Real Robot series. And his hilarious death of getting stepped on by a giant mech? WELL EARNED.
The manga version of Hagatai from Bokurano seduces his girlfriend's middle school aged sister, convincing her that he loves her, only to then have her gang-raped. He then blackmails her into staying silent, while he moves on to his next target. His motivation, beyond ephebophilia, is the sick thrill that he gets out of hurting her, while knowing that her family continues to trust him. He may not have been an alien, or the operator of a Humongous Mecha, but when it comes to being just plain disgusting, no one else in the manga comes close.
Bryan J. Mason, later known as Largo, from Bubblegum Crisis is the Big Bad of the first part of the series. A Corrupt Corporate Executive who manipulates the Boomers by kidnapping a child boomer so he can gain access to the technology that allows him to pinpoint a Kill Sat in space and had one of his own Boomers go berserk to force her to panic and unleash the Kill Sat in a boomer populated area. When he's first shown on screen in episode 3, he heartlessly evicts the tenants of a poor neighborhood and has his demolition crews continue their job even though a woman is still trapped inside the building-he only stops them after she is dead to rub it into the heroine Priss's face. After his supposed death, he reappears as a Boomer named Largo who manipulates a group of Sexaroids, leading to most of their deaths and tricks the final Sexaroid Anri into believing Priss had murdered her best friend Sylvie to make Anri stab Sylvia. Larog then uses his Kill Sat on multiple occupied cities to destroy the bases of his former masters without care that the blasts consume entire city blocks. For all his rhetoric on 'equality', he sneers that Sylvie was 'just a sexaroid' before killing Anri in front of Priss and declaring his intent to become a god before being defeated when he tries to take everyone with him using hisKill Sat toy to satisfy his ego.
Norose Genichi of Chaos;Head is a sneering, arrogant maniac with a god complex who specializes in the Mind Rape of young girls. Operating as The Chessmaster to get the heroes, superpowered beings called Gigalomaniacs, to do what he wants to further his ends, Norose also destroyed one's sense of self to make him break down. It also revealed he had another's family in an experiment, using her mother as a test subject in creating matter from artificial delusions. He forced a woman who had lost her baby to have a new one from her delusions until he decided he'd gotten enough information and ended the experiment, causing the woman to lose her mind and stab her eyes out which Norose found quite amusing. While Norose claims he is a Well-Intentioned Extremist, he is nothing more than a petty tyrant with a god complex seeking to enact his designs on a world he sees as having no point by hurting those in his way.
Roxanne of Love and Hate, the former greatest warrior and 'Number One' of the Organization in Claymore differs from the majority of other villains in the series by being a cruel, violent sadist. Initially a low ranking warrior, Roxanne began to seduce, befriend and eventually murder stronger warriors after stealing their techniques. Eventually, she set her sights, on number One Cassandra, but when she saw Cassandra's technique, she spitefully decided she hated it and gave Cassandra the hated name 'Dust-Eater.' She later set up Roxanne's only friend to die a torturous death at the hands of a monstrous Awakened Being and mocked Cassandra that the other warrior had looked as if she had 'enjoyed' the beast playing with her, so interfering wouldn't have been right. Just as Roxanne had known she would, Cassandra snapped and attacked her. Roxanne used the entire other forty-five warriors as shields, relishing in their fear of Cassandra and cackling how hideous Cassandra's abilities her. when Cassandra finally reached Roxanne, Roxanne gleefully impaled her head with the pommel of her sword.
Luciano Bradley, the Knight Of Ten from Code Geass is a Psycho for HireBlood Knight for the Britannian Knights of the Round who is utterly despised by almost everyone around him. Luciano appears to be a member of the group solely so he can kill other people and be lauded for it, and when Kallen is held captive, Luciano makes advances to indicate he's going to rape her before fellow knight Gino stops him. Luciano participates in an assault on Japan and is positively gleeful about slaughtering every Japanese person he can get his hands on before facing off with Kallen. He has no compunction sacrificing or killing his own men and seems to even relish the chance to do so. Hateful, cruel and bloodthirsty, it's telling that none of his fellow knights even mind when Luciano's dead.
Jewel Princess of Cutey Honey. She's a Psycho Lesbian who kidnaps beautiful women, strips them naked, and turns them into statues, effectively killing them, in order to preserve their beauty for eternity, and then props them around her lair like furniture. And she takes sadistic delight in watching them scream in terror and desperation as they get converted to statues.
The Three Lords of clans Rozenmann, Ivanovic, and Li are all nasty customers, with Ivanovic being the most overtly brutal of the lot. In the past, the three destroyed and usurped all the other great vampire clans before murdering their sovereign, Queen Lucretia, and only sparing Lucretia's young daughter Min as a future tool for breeding for one of them. While Li hasn't been seen as much, he, Ivanovic and Rozenmann participate in a contest to determine who has possession of Mina: by sending their best assassins after her love interest Akira with the winner taking the prize, and subjecting Mina to a degrading chastity test so she knows she is the property of the three.
Ivanovic, as the most vicious and unhinged of the three Lords, leads a brutal attack on the Bund to capture Mina for his own pleasure. Once there, he deliberately targets civilians, and has the innocent fangless vampires executed to draw Mina out of hiding. He also uses as shock troops werewolves he's tortured into feral beasts that have forgotten their own humanity. Ivanovic at points attempts to rape Mina when he can and has a disturbing taste for young girls, not caring that Mina is in her younger body as opposed to her adult form; he even declares he'll only enjoy her adult body after he's had his pleasure of the younger one. In the past,he was also Grigori Rasputin and drove Russia into chaos and ruin. Mina barely rescued Grand Duchess Anastasia from being dragged to his bed chambers at the end.
Rozenmann, The Chessmaster. The most elegant, handsome, well dressed and polite of the three Lords, Rozenman is also the most intelligent and manipulative. He tricks Ivanovic into invading the Bund, knowing the death and destruction that will result. Planning for his fellow Lord's death, Rozenmann set up Mina to be kidnapped and replaced by a doppleganger whose terrorist attacks he was secretly financing and patronizing. With Mina in his hands, Rozenmann has Akira killed (though he was Faking the Dead) solely to break Mina further, and injects her with a drug to freeze her in adult form to rape her later. While Ivanovic is a wild, furious warlord, Rozenmann manipulates nearly every bad thing to happen in the series, with nary a care as to the many innocent lives or mental trauma he leaves behind him in his quest of domination.
Comparatively minor villain he may be, but the vampire crime boss Gabe from volume 11 uses his short screen time well. Gabe is a vampire sworn to Rozenmann living in New York where he's a vampire, pedophile and maker of child pornography who routinely taunts a stripper about paying a visit to her daughter Susy, who can't be more than six. After he learns the stripper is sheltering the runaway Mina, Gabe violently murders her friend and storms her apartment, immediately noticing how Susy is prettier than he imagined and attempting to seize her before Mina stops him. Gabe uses Susy and her mother as hostages so Mina surrenders under promises they won't be harmed. While Rozenmann's honorable werewolf retainer Gerhard is willing to give the assurance, Gabe makes it clear he has zero intention of not coming back for Susy and when Mina asks to feed, he comments he thought her child form was much hotter and if he can have Susy when Mina is done. Mina remarks he has mistaken her grievously before she rips his throat out, commenting his blood is as foul as his soul.
Radovan Elichenko in life was a Serbian war criminal who, during the Bosnian wars led his troupe of soldiers into a village while the men were away and slaughtered the elderly and the children. The women suffered worse. Any woman in their teens or over where taken and subjected to endless rapes and tortures. To escape justice, Elichenko became a Cudoviste or monster in the Slavic tongue- a vampire. He then joined Lord Ivanovic and carried out 'purges' of any leftover clans in Ivanovic's territory. After fleeing to the Bund and betraying Ivanovic to gain sanctuary, Elichenko was confronted by the father of one of his victims who had become a vampire to hunt Elichenko down. when presented with a picture of the girl he'd raped and tortured, Elichenko sneered he'd done 'thousands of Bosniak sluts' and only remembered them by how they looked 'down there' before mocking him about having probably slept with his daughter because 'Muslim men love to control their women.' He then proceeded to assume his true form to kill him, unaware that the rage inside a grieving father was far more powerful than Elichenko knew.
Gildorome of Dancougar is perhaps the single most depraved character in the series. While Death Gaia and Helmut are insane, their way of thinking is extremely straightforward. Shapiro, however, preferred his knowledge of earth geography and his battle tactics to take down the Cyber Beast Force. Gildorome? No, instead of using conventional methods, he preferred psychological methods, such as using a Lotus-Eater Machine to hypnotize a whole town to kill them when they can't even fight back. In the long run, his method caused the highest number of innocent victims in the most brutal way possible.
Claude from the Gaiden is the nastiest Contractor in the anime. While most Contractors are simply amoral, Claude is a relentless sadist who enjoys tormenting people by disguising himself as their loved ones to get a rise from them. His ultimate goal to awaken Izanami to commit genocide on his fellow Contractors, solely for the fun involved in it. He compounds this by unleashing Izanami's powers to murder a group of Contractors who simply wanted to live in peace.
From the manga, Flower Of Darkness we have Coach Daisuke Mioka, a perfect example of how Humans Are Bastards in the series. Daisuke is the handsome young coach of an all girls' academy, but is also a serial womanizer and has affairs with his impressionable, starstruck students, making web porn of them. When one of them, Azusa, finds out, Daisuke tries to silence her by convincing her best friend, his cousin, another conquest, to talk to Azusa so he can save the day from a group of his friends who want to rape them. Daisuke mentions to his friends to go ahead, but he'll just be 'a little late' so they can have their fun and later drugs a teacher so he can sleep with her. When Hei is talking the newly empowered Azusa from leaving Daisuke alone, he gloats how happy he made her, and how it's all the fault of women for what he's done and tries to fry Azusa with a stun gun, which enrages the normally taciturn Hei into trying to kill him in cold blood.
The Contractor antagonist of Flower Of Darkness, Harvest serves as an Evil Counterpart to Hei. While Hei embraces his humanity, Harvest considers humans weak and pathetic an offers humans in mental torment his Black Dandelion, the 'Flower of Darkness' to grant them power at the price of murdering their best friend, not mentioning the flower strips the victim of morality and restraints...and he often gives it to the target as well to see who will kill the other first. Harvest's entire motivation is he was once informed he was inferior to the then fully human Hei. Unable to accept it, Harvest opens the Black Dandelion to infect every human in Tokyo, and from there on the rest of the world, to turn humans into amoral monsters like him so he can judge for himself if morality is necessary and there is "nothing within me." Defined his selfishness and narcissism, when the Black Dandelion is stopped, Harvest declares I alone am the future! before using his enhanced powers to attempt to simply obliterate the entire remainder of the planet.
The Director, Tamaki, is a Psychopathic Manchild in charge of managing the titular prison. He uses his position to initiate mandatory Death Games (he poisons EVERYONE and then sells the antidote in exchange for death game prize money). He forces the Deadmen to take part in Blood Sport and dissects the losers. He has scores of Mad Scientists working under him and created not only the Undertakers, but also the Forgeries.
The worst of them all is Hagire Rinichiro, the real director and Mad Scientist extraordinaire. He is so utterly evil he puts notable evil scientistAlbert Wesker to shame. The atrocities he committed include turning poor Shiro into the Red Man / Wretched Egg and being behind Tamaki's descent into bastardry. Essentially, he is behind everything bad that happens to every character.
In an episode in the second season, Heiji/Harley tries to beat Conan at a murder mystery. The banker and victim of the case was this, and he was killed because he ruined and forced to suicide his best friend just to get his hot (and pregnant) wife. Said wife was so disgusted once she found out, that she pretended to lose the baby girl but secretly sent her to a convent to keep her away. Several years ago, the girl came back and started working as a maid for the banker, not knowing what her relationship with the family was. When the wife found out the banker was planning to do to her daughter and her boyfriend what he'd done to his old friend just to get at her...well, you see what happened. (He wasn't aware at first, but when she told him, he simply brushed it off.)
Yutaka Abe/Mark Newman on the episode "Flames of Confusion". Most perps on this show usually have a motive that the audience can sympathize with and show regret at the end, but not this guy. He killed his friend from college 20 years ago for the insurance money—don't ask how he had a policy. He used his company and employees to try to build the perfect alibi. Everyone thinks he's suspicious. Even Detective Mori/Moore, who usually suspects the wrong guy, is right on the mark, but no one is able to solve the case. And when Conan blows open his case anyway and confronts him in the airport parking lot, where Abe is trying to flee the country with his money, Abe attempts to murder Conan brutally, but Conan's soccer skills win the day anyway. Oh, and after he's arrested, he angrily condemns the 'brat' who caught him. Basically, when this guy is first interviewed for the case, he had a completely inappropriate tone for his long-time friend just dying, and when Conan finally catches him, his facade drops and he almost looks, sounds, and moves like a real monster.
The original manga also has Jinmen, turtle-demon who eats people alive and incorporates their faces into his shell - very much alive and concious. He has no problem taunting Akira with it. In fact, he ate somebody close to him and put that person's face above vital spot. Who he ate varies between versions - in the original manga, it was a ten years old girl named Sachiko, Akira's close friend; in the OVA series, it was Akira's mother; and in The Movie, it was an ex-bully who befriended Akira. The Movie even has special scenes of him attacking little kids he wanted to eat.
While Amon in AMON is nothing like his OVA counterpart, this series introduced a handful set of complete monsters in his place. Sll creatures send by God to fight demons are sadistic, manipulative, and have absolutely no redeeming qualities. Candy is solely responsible for convincing people there is no such thing as Devilmen, leading to them being prosecuteed and killed alongside countless humans believed to be demons, yet he is one of them himself and isn't to shy to admit to being a serial killer before his rise to power. Then there is God, who orchestrated the fate of the entire world since Satan has fallen, so he/she will lose the only person he/she loves as a punishment. And put the world on time loop so Satan has to suffer watching Akira die over and over again.
Most of Go Nagai's villains in general qualify as Complete Monsters, particularly in his more violent works. Violence Jack, by far Go Nagai's most violent work and set in the same universe as Devilman, has Complete Monsters in all of its villains, with the series' Big Bad, the Slum King, being the worst of them all.
Angelika Einsturzen of DOGS Bullets And Carnage experimented on and raised multiple children as killers in an attempt to find the perfect weapon while she directed them into slaughter, firmly enjoying It all the while. She has made a show of mocking the demi-humans and Liza that she has experimented on, referring to them as chattel, shock collaring twin kids when they, understandably, don't want to return to her, taking over the girl Lily's body and essentially gloating about it to the Anti-Hero Heine, who is suitably freaked out, possessing one heroine, Naoto and forcing her to potentially fatally stab Heine while he's clearly reluctant to mortally wound her and then gloating about that as well. She does this for no reason that her victims can conceive of other than For Science! and because she could.
Izumi Ran of Durarara!! not only kidnaps his rival Masaomi's girlfriend and gloatingly breaks both of her legs to get revenge on him, but also delivered a truckload of abuse on his own brother, Aoba, for extremely petty and selfish reasons, namely that Izumi couldn't stand being perceived as 'less' than him. Worse still, he is also a sex offender and even threatens to rape Earthworm after already putting her through a massive beatdown. Even despite Earthworm's lack of morality, Izumi showed himself as ready to sexually assault her just to force himself on someone helpless.
The Unknown Man is indisputably one of these. In order to find our protagonist, he crafted a radar system made from a silpelit who was still alive, by cutting her lower half. In order to make sure that she wouldn't use her powers against him, he also built a tank for her which would keep her in a constant state of excruciating pain. He also felt it would be a shame to let said diclonius' body go to waste, so he, in no grey terms, raped her before he cut her legs. Finally, just when you think this guy couldn't get any more repulsive, he attempts to rape Mayu. Needless to say, when Bandoushows up and kicks his ass, it's quite satisfying.
Mayu's stepfather qualifies. He is a child molester who loved to sexually humiliate her, and it's shown he went as far as to sodomize her. He gets no comeuppance for this, as he's only shown in flashbacks.
Dewey Novak of Eureka Seven likes to act the part of an Affably Evil and noble military officer, but we later discover he put his top fighter Anemone and multiple girls like her through torturous experiments to make them Tyke Bomb soldiers. Anemone was the only survivor and it damaged her mind severely. In order to gain support for his war efforts, Dewey engineers enormous levels of civilian casualties, using the Starfish Alien Coralians as a scapegoat to convince humanity they cannot coexist and must wipe out the Coralians. His motivaton is that his world domination plans have no place for the Coralians. Most of his motivations boil down to a petty grudge with his younger brother Holland and he even made preparations to drag the entire universe to death with him should he fail.
Fate/Zero: Caster, AKA Gilles de Rais, and his master Ryunosuke are a Serial Killer and Evil Sorcerer duo. Ryunosuke first met Caster while invoking a magic ritual for fun after slaughtering a group of innocent people, except a child he was saving for later. Caster freed the child...and then had him gruesomely killed by a summoned monster because it was too much fun to take away a victim's hope after allowing it. The two formed a partnership and proceeded to commit many murders together in the Grail War. Caster proved willing to summon a horrid Eldritch Abomination monstrosity he couldn't even control in close proximity to a populated city, while Ryunosuke also used the magic toys Caster gave him to begin kidnapping children for the purpose of sacrificing them with Caster later.
You get some of these in Franken Fran (and before anyone even considers it, Fran doesn't count; she's physically and psychologically unable to realize what she's doing may not be morally acceptable, and besides, she genuinely wants to help people even when her priorities are skewered). One of her employers, seeking eternal youth, had any doctor that couldn't completely fulfill her request decapitated (including Fran; Fran, however, could survive it) and their research stolen to increase her wealth, as well as mass-murdering clones of herself just to drink a juice made of their eggs. Then there's the "Very Lucky Man", a man born with an accelerated Healing Factor. He spent his entire life raping and killing because he knew there was no way to execute him for his crimes.
Gauron, aka Mister Iron, is the main villain of the first season of the show. A former mercenary from Hemaljistan (Afghanistan in the light novels) Gauron was the archenemy of main character, Sosuke Sagara long before the series began. In flashback, we are shown that Gauron was responsible for killing all of Sosuke's comrades in Afghanistan. In the present day Gauron kills a KGB agent he was working for when the man argues with him. He then hijacks an airliner after killing the captain, threatens to murder all the high-school students onboard if the authorities refuse to cooperate, and kidnaps Kaname, whom he has subjected to experiments. When that plan fails, Gauron returns months later, working as a nuclear arms dealer. When Sosuke and his new team try to interfere, Gauron kills all of them except Sosuke gloating the entire time. He later hijacks the entire Tuatha De Danaan submarine, planning, again, to kidnap Kaname, and threatening to sink the entire sub. That's in Season 1. In Season 2, we find out he's the one behind the actions of Creepy TwinsYu Fan and Yu Lan, whom he sends to kill Kaname as a means of screwing with Sosuke, before blowing himself up in a final attempt at Taking You with Me. In all of his appearances, he is incredibly proud of the number of Sosuke's friends he has killed, constantly rubs it in his face, and seems to be trying to push Sosuke into killing him. A truly sick individual, Gauron is engaged in a game of psychological warfare with a sixteen year old kid, all because of a warped Stalker with a Crush obsession.
Gauron's successor and head of Amalgam's Execution Squad, Gates (aka Mister Kallium) is completely and utterly off his rocker. In his first appearance he shoves a man out of a helicopter for questioning his predictions about how a battle may have progressed, has all his former allies slaughtered, then has a Freak Out and kills the men who did it. He later tries to ambush the heroes and kill them, using an attack in a public place as a way to draw them out. He's a truly warped sexual predator as well; he's heavily implied to be taking advantage of teenage girls Yu Fan and Yu Lan, admits to being a necrophliac, and is seen masturbating to images of kittens and squirrels. A spectacularly Bad Boss, he drowns one of his men in a pool for bringing him bad news. In the Season 2 finale, after Leonard Tesstarossa has killed one of the twins, Gates uses her corpse as part of a puppet show to taunt the surviving twin, whom he then murders, before making his final assault on Mithril.
The Elementary School Principal, Kuonji, from Gakuen Alice. Kidnapping, extortion, blackmail, child abuse, child slavery, etc. He's not even remotely a good person. At first, he turned Luna against Yuka and made them enemies. Then, after Yuka's stealng alice was discovered, he forced her to go on missions and steal the alices of dying/dead people. He was also responsible for Izumi Yukihira's death, practically brainwashed Rei, AKA Persona, implied to be resposible for Kaoru's death, burned Natsume's hometown by making Aoi's alice go out of control and held her hostage to ensure Natsume's loyalty, caused Yuka's death, and severely injured Narumi. He's currently holding Mikan hostage, preventing her from using her alice to heal Nobara. Oh, and his clone is the boss of the Z organization, which kidnapped Natsume and nearly killed Hotaru.
Kazukiyo, the eldest son from the Gowa family. He goes so far as to assassinate a minister of justice in what looks like a tragic road accident, have soldiers injected with Psycho Serum and forced to pilot the series' mecha for 36 hours straight (something that his Mad Scientist brother Kiyotsugu actually refusesto do), provide assistance to a Well-Intentioned Extremist, allowing him to stage a coup, use his own little sister Misuzu in an experiment due to her powers as a kai (empath that can synch with the Humongous Mecha from the series) - something that, again, Kiyotsugu objects to - and commit patricide (and when his dad was trying to save Misuzu from him, nonetheless!) in order to achieve his goal.
His very ancient predecessor, Tsuna Watanabe, isn't any better, deliberately having the city of Kyoto set on fire, letting the firestorm of Gasaraki be summoned, and then torturing Yushiro by shooting him in the knees with arrows when he refuses to let the summoning continue.
Many of the evil demon children in Gash Bell. In particular, Zophise horribly Mind Raped both humans and fellow mamono, both for practical reasons and For the Evulz. Riou and Zeon just barely dodged this status, only thanks to ultimately failing at their attempts to sadistically murder the main cast and blow up Japan just to get back at Kyomaro (their motivations were convincing, but in no way actually excuse their behavior). Finally, Clear Note was so thoroughly malevolent that Gash's ultimate spell, which destroyed only what was evil, erased everything that defined his person, leaving only his...soul, or whatever, to reincarnate as a different being.
Ghost in the Shell: Stand Alone Complex has Kazundo Gohda, director of the Cabinet Intelligence Service. A charmless, callous, and totally amoral Manipulative Bastard, Gohda's (largely self-inflicted) Inferiority Superiority Complex and obsession with Great Man theory led him to kill hundreds with the terrorist-producing Individual Eleven virus, to come within inches of starting a genocidal war, and to try to nuke a crowded city-state half a mile off the coast of Japan just to show that he could. To give some impression of how severely he eclipses the other villains of the series in heinousness, one of his most minor crimes was to deliberately expose labourers to a dangerous work environment (he asked them to excavate a buried ruin, but didn't tell them it was a heavily-irradiated nuclear facility), and then cover it up with a string of murders. Someone else did something similar on much the same scale elsewhere in the series, and it became the driving force of most of the first season.
Hougen from Ginga Densetsu Weed is possibly the most evil and malicious dog ever portrayed in any media or at least a strong contender for the place. He introduces himself to the legendary heroes of Ohu by taking a shit and telling them that if they eat it, he'll let them go. He then paralyzes the heroes by threatening to kill a young female, Reika, if they dare to fight back. He has the heroes beaten almost to death as a result. Hougen frequently laughs at pain and desperate acts of heroism and defiles the corpses of those he's defeated; in one snowy scene, he sits on a recently dead dog to keep warm and jeers at the fallen's companion that he'll sit on him next when he dies. Hougen is not above using his lackeys as expendable shields, sending dozens of them to their deaths against opponents whom he can beat himself. When he has temper tantrums, he brutally kills whoever happens to be standing around. Hougen is also a serial rapist, who demands his underlings to round up females for him. He forces Nero (then-pack leader of one of the main characters, Lovable Coward GB, and a minor villain) to kill the abandoned puppies right in front of GB (GB was about to look after them but brought them at the wrong time) just to prove that the puppies weren't Nero's - and that Nero, therefore, isn't hiding a female from him. This, by the way, doesn't save Nero's hide in the end. Later (chronologically) Nero encountera the leaders of Ohu and is swiftly cowed into submission by them trying to justify his cowardice to Hougen by saying that they threatened to bite off his legs and piss on his face. Hougen immediately makes an example out of him by doing exactly that. Even finding out that Hougen and his brother were trapped by their human owner for so long that they had to resort to cannibalizing the dogs trapped with them does nothing to evoke sympathy for his cruelty. The only smidgen of honor Hougen shows throughout the whole series involves a pact he and his brother made, that if Genba dies, he wanted it to be by Hougen's fangs. When Genba suffers a head wound that drives him psychotic, Hougen murders him. Then promptly turns on the dogs who were with his brother, tears out their throats and hurls them from the top of Gajou.
Edward King of the manga Green Blood was an Irish Immigrant to New York decades before the series start with his friend Gene McDowell with whom he founded the Gravediggers gang. Edward grew bored with the Five Points and left- after murdering the woman who had borne him two children, in front of his elder son Brad, inspiring Brad's lifelong hatred and desire for revenge. Years later, Edward returned when the Gravediggers were warring against their rivals, the Iron Butterflies and manipulated both sides, supplying Gene's son Kip with a Gatling Gun simply to make the carnage more fun. After escaping again by threatening Kip's life to Gene, Edward returned to the frontier with his Crimson Gang. When one of them was defeated by Brad, Edward killed him by crushing his skull with his horse's hoof simply because the man was helpless and Edward could. Edward initiated a massacre in another town, capping it off by shooting a priest and declaring This is my freedom before they rode to Montana where Edward supplied his weapons to help wipe out the Sioux and Cheyenne warriors for amusement and gain. Edward later faked his capture in Kansas City to plunder its gold reserves and when both his sons confronted him, Edward laughed that he had "forgotten the bitch bore two curs" and engaged them, willing to have his stolen battleship burn down Kansas City and attempting to kill his sons with sadistic relish, mocking his younger son how it would feel to die at a 'real man's' hands.
Marquis Albert du Blois of Gosick is the leader of Sauville's Ministry of the Occult. A man obsessed with the supernatural, he viewed his own children as nothing more than tools. After he met a woman who matched the bloodline he was looking for, he kidnapped her and raped her to produce a child before stealing the daughter Victorique from her. Albert apparently manipulated the start of World War 2 and blackmailed the King into making of him the Prime Minister. He also managed to amass a legion of followers by making the people believe that his daughter was a monster.
Bryan Hawk from Hajime No Ippo is as close to a Complete Monster as you can be in a story about boxing. Not only does he make resident jerkass Takamura look like an angel in comparison (and Takamura is NOT an angel), he's also batshit insane, animalistic, and only cares about fucking and hurting others. His backstory reveals that he only got into boxing because his trainer promised him he could hurt others as much as he'd liked and theoretically had a license to kill, as it would appear as an accident. And it just gets worse from there: he's actually racist against the Japanese and straightforwardly intends to kill Takamura in their match, while seemingly gettingsexual pleasureout of beating him. There are some truly nasty boxers in Hajime No Ippo, but at least they have pretty well-doneFreudian Excuses, and none of them comes even close to the disgusting depravity and assholish-ness of this character.
Minos, the master of Synapse in Heaven's Lost Property. First, there's his xenophobia toward humans, referring to them as "downers" and "bugs". He also beats Nymph whenever she fails her orders (or when he feels like it, really) and constantly threatens to destroy her. It's likely that he treats the other angeloids that way too. He also threatens destruction if they don't provide entertainment for him. This "entertainment" includes such things as ordering Ikaros to annihilate the Tower of Babylon and the surrounding city, which would kill countless people, and placing a bomb around Nymph's neck, triggered to explode if she again failed to bring Ikaros back to Synapse. The worst personal and petty thing he did was probably the time he ordered Nymph to call on her pet bird and prove her loyalty to him by crushing it to death. After she did so, he stomped her face into the ground while laughing about how "That was pretty fun. I'll save scrapping you until next time." Nymph goes on to thank him for not destroying her, which in all those cases, can easily be interpreted as "Thank you for not destroying me today." All this, while wearing a Slasher Smile the entire time. He does these sorts of things after the series fully establishes that the angeloids have feelings and emotions despite their artificial natures. Both of the angeloids in question cry their hearts out after recalling what they were ordered to do. Simply put, the sections that have him in it mean that the plot shows its dark and serious side.
The leader of the 'Last Battalion'' of the Nazi remnant Millennium, The Major is an unassuming, jovial fat little man who has one defining characteristic: his love of war. The Major, after surviving World War 2, consolidated his forces in South America where they awaited their chance for one final, glorious combat. Acting behind the scenes, the Major had multiple humans turned into vampires, having them slaughter innocent people to slowly reveal himself to Hellsing. Finally taking center stage, the Major launched an attack on London, obliterating everything he saw and having his men slaughter every living thing in sight, including babies. The Major confesses there is no end goal for it: the means of combat and war are their own end. The Major shows no hesitation in killing one of his own officers when he objects to the Major carelessly sacrificing their soldiers, and his ultimate goal is to die at the conclusion of his war, after having created one last great display of carnage he so loves.
Zorin Blitz lays siege to the Hellsing mansion with her forces and mind rapes Seras by delving deep into her memories and forcing her to relive her painful childhood, where she had to watch her parents be murdered by gangsters and her mother's corpse being raped. While Seras is trapped in the illusion, Zorin hacks off her arm, stabs her through the back, and cuts her eyes. Pip and his two remaining squad members arrive and manage to temporarily disable Zorin by shooting her multiple times. Pip tries to escape with the badly wounded Seras, but Zorin kills him by stabbing him through the back with her scythe. To top it all off, as Seras cradles his dead body and cries for him, Zorin mocks Pip, calling him an "insect", and prepares to kill Seras and her fellow soldiers. This was enough to provoke Seras into absolutely curb stomping Zorin and her forces to death and pulling a No-Holds-Barred Beatdown on Zorin by scraping her face against the wall at superhuman speed until her head remains as nothing more than a red smear on the wall.
Higanbana No Saku Yoru Ni: Yoshihito Kanamori, a Sadistic Teacher, and a dark, twisted version of the typical Lolicon you would normally see in anime, and he isn't Played for Laughs. He started off as the homeroom teacher of Marie Moriya, a young girl who was bullied by her classmates. He used to defend her from the bullies, until the stress of his job got to him and he started to take his stress out on Marie. His supplementary lessons include molesting her and putting it on camera. When Marie gathered up enough courage to stand up to him, he strangles her to death, singing her a song about graduation from life to death while doing so, then dumps her corpse in the old school's septic tank. When he encounters Marie's spirit in the restroom, he gives her a long "The Reason You Suck" Speech about her not going to the police to report on him while she was still alive and called her an imbecile who couldn't fend for herself. He then opens the door to one of the bathroom stalls, and upon finding that Marie has apparently physically manifested, he attempts to strangle Marie a second time. When the deed was seemingly done, he proceeds to rape the corpse when he notices it was still there.
Sadist Teacher Sidou of Highschool of the Dead first shows he's a man to fear when, during a zombie attack, when a student he's guiding twists his ankle and begs Sidou for help. Sidou's response was to kick him in the face, and gloating over the poor kid's impending death and his own survival by telling that the new world had no place for people that weak. Then he uses his position as a teacher to get himself elected leader of the surviving group. Sidou sets out to make himself a cult leader, promoting sexual activity amongst the kids to make them loyal to Sidou. When a student doesn't like the action going on in the "orgybus" and asks if he can just be dropped off at his house to see if his family is ok. Sidou and his group, who are at this point a cult, decide that the best way to grant his wish is to throw him out of the bus and let him get eaten. In a Zombie Apocalypse, Shidou stands out as more evil and vile than any walking corpse.
Holyland has Yagi, through and through. He kidnaps the hero's Love Interest Mai, force-feeds her the drug True to get her into a state of severe addiction, and ties her up in a place where three of his henchmen might possibly rape her, and he's got the whole thing being video-recorded and broadcast over the Internet via his cellular phone as a way to keep Yuu from fighting back while Yagi's thugs beat him to a pulp. Even his boss King, while a Smug Snake, doesn't sink this low.
Ryogaku of Houshin Engi. The first thing he does is inject the heroes with a virus in order to make them surrender. However, he truly crosses into this by their next fight, when he has a monster experiment try to kill Nataku's father with his mother inside its belly in order to prevent attacks. The kicker, the monster is actually his own son, Bagen, who he made into a mindless monster in the false assurance that he'd be made stronger and shows no concern when he's dying.
Jiro and Saburo are twin brothers whose sibling rivalry makes them bring out the worst in each other. It's hard to say what's the most terrifying about them. These unnerving twins ooze tension whenever they appear and their uncanny faces like parodies of humanity with features squashed together only add to their scariness. Their actions are so violent and insane that even their fellow Yakuza gangsters are shocked and disgusted. The twins keep marathoning further and further beyond the depravity line and by the time Saburo rapes a girl to death by shoving a sword in her vagina, you barely feel anything.
InuYasha has Naraku, the Big Bad of the series. He is responsible for nearly every atrocity in the series. He is a half demon who wishes to become a full demon by using the sacred Shikon Jewel. How does he want to go about doing this? By messing up the lives of every single one of the main cast's lives because he can. He was responsible for Miroku's Wind Tunnel curse, Sango's brother becoming Brainwashed and Crazy, reviving a group of serial killers to slaughter his enemies, and sending his minions to kill villagers to lure the protagonists to him. He's a mastermind at manipulating others to do his bidding and he's killed Kikyo numerous times because he wants to remove the only side of him that could possibly be redeemable. If that wasn't bad enough, he essentially was responsible for Kikyo and Inuyasha's falling out and killed a huge margin of Koga's wolf clan. He's also not above killing his minions if they choose to disobey him and killing innocents if they even so much as become inconvenient to him.
Jinki Extend's Kalis Norman in both the anime and manga continuities.
In the anime, Kalis manages to establish himself as one of these in less than ten minutes screentime, completely altering the tone of an otherwise tame and derivative show with his very presence. Disguising himself as thirteen year old Satsuki's older brother, he gets close to her, slashes her with his scythe, brutalises her, and then rapes her, ranting the entire time about how she should "be good for her big brother". When the rest of the Angel team arrive, Kalis tries to escape, taking Satsuki with him, and gloating about how he's going to continue "loving her like a brother". When Akao attempts to stop him, Kalis tries to kill her with one hand, while continuing to grope Satsuki with the other throughout the fight, snickering about how easy it was to do this to her. His actions leave Satsuki completely shattered, and of all the people in Shiva's employ he's easily the most despicable.
Kalis is even worse in the manga, where he's essentially a RapistFor Hire. Employed by de factoBig BadShiva for the purpose of breaking potential Angel pilots, Kalis assaults and rapes one of the main girls, driving her into a Heroic BSOD. When she refuses to scream for him, Kalis has a minor Freak Out ("You boring bitch, you won't even scream!") and starts cutting her up with his scythe; when the rest of Angel team interferes, he tries to kill them all. Reappearing at the end of the volume, Kalis ambushes Satsuki and tries to rape her as well, only to be halted by the male lead. Returning again in volume three, Kalis tries to apply his craft to the entire Angel team, via a giant, fluid spraying, tentacle rape machine. A raving misogynist, who gets off on the psychological damage he inflicts as much as the actual rape, and thoroughly warps the tone of the story with every appearance, Kalis is never less than absolutely disgusting.
Dio Brando. He has no compunctions forcing people to do his bidding, and if they do that, it's no guarantee of survival (think the rich man who drives him around in Part III). His shadow also looms large over all antagonists that follow him, with all of them being connected to him in some way, and he's directly responsible for the events of Part VI, where all the main characters die. He used his time-stopping stand to force someone to eat a dead cat and stab someone else in the face - and he did this just because he could. In Part I, after being adopted by Jonathan Joestar's father, he proceeded to make Jonathan's life a living hell for no adequate reason. He beat up Jonathan, humiliated his girlfriend, burned his dog alive, tried to poison his father, and forfeited his humanity to become a nigh-immortal vampire. Dio then embarked on a killing spree across London, with his atrocities including cornering a young woman, who begged Dio to spare her baby. Dio agreed, promising not to kill the baby, but killed the woman only to revive her as a zombie. True to his word, he left the baby, but watches as the zombified woman proceeded to eat her own child in front of him. He refused to die after being defeated, with his severed head returning at the very end to attack the cruise ship Jonathan and his new wife are on, thus sinking it, leaving few survivors. Jonathan drags him to the bottom of the sea with him, finally killing Dio...until he returns 100 years later, using Jonathan's corpse as a body for his severed head. Even though Dio had a hideously abusive father, his Freudian Excuse isn't nearly good enough to excuse his barbaric behaviour.
Cioccolata. For starters, his back story involves him torturing old people to death while maintaining a guise of being a good samaritan. When he starts fighting the heroes, he makes sure that he starts horribly killing the innocent people in the village just for fun. His Stand Green Day works when people are at a lower altitude than him, so what does he do? He gets on a helicopter and flies above Rome to kill as many people as possible. It says something when even the Big Bad Diavolo, a man who would kill his own daughter to protect his identity, is disgusted by him. Thankfully, Giorno proceeds to give Cioccolata the biggest and longest beatdown in the entire series, which sends him flying into a Garbage Truck with "Combustable Trash" labeled on the back.
The Colorless King of K in all spades. For starters, he took control of a young teenager boy and shot Tatara Totsuka (the only pacifistic member of HOMRA and a Nice Guy at heart) to death, thus escalating the conflict between HOMRA and Scepter 4. He later meet up with Adolf K. Weismann, the Silver King, under the young boy's body and managed to Body Swap with Weissman, thus effectively framing Adolf K. Weismann for the murder of Tatara Totsuka with amnesia. When he was a dancing with a masked lifeless woman (heavily implied to be one of the victims that he possessed) in Weismamn's blimp, he decided to "celebrate" his Scepter 4 "guests" by blowing up the blimp, thus killing the said women and nearly killed Yashiro in a helicopter, but left Adolf K Weissman's body unscathed due to his immortality. He then later possesses a random highschool boy and calls Mikoto Suoh through the phone by admitting to kill Tatara Totsuka and threatening to hurt the other clansmen next (including raping Anna, who has no ways of defending herself) simply to get a reaction from Mikoto. During the fight between HOMRA and Scepter 4 at, he possesses a random Scepter 4 sniper and tries to kill Anna. And during the said fight, he even managed to possess Kukuri, a cute highschool girl, and puts her in even further harm. Why did he all of this? He wants to be the only king in the world through Body Swap possession and create as much chaos as possible. In a series where neither HOMRA nor Scepter 4 are portrayed good and evil and very complex and moral ambiguous characters, the Colorless King is simply a despicable monster.
The lord of the Hioki Domain in the first series of ''Kamui Den": among many other misdeeds, he rapes a peasant girl who was serving at his residence, then after she's drowned herself in despair, he spitefully hacks up her corpse and sends it back to hvillage, bundled togther with rotting animal meat.
Silcardo Jenazad from Kenichi: The Mightiest Disciple couldn't stand lasting peace, so he incited a civil war, which he's still actively maintaining, in his own country 20 years ago. During said ongoing civil war, one of Jenazad's servants informs him that the men, who joined his side, because they were devoted to his cause, will die in large numbers if they persist in the current segment of the conflict. Jenazad's response: "So?" For his research purposes Jenazad causes his past students to fight and kill each other. He causes an avalanche to kill his own modern-day YOMI student, who, granted, isn't a very nice guy himself to begin with(except he survives). Jenazad also almost manages to trick fellow YAMI member Akira Hongo into killing the titular protagonist as well as kidnaps and brainwashes Furinji Miu into becoming his newest cold-blooded disciple. He later supervises the brainwashed Miu's battle against Kenichi, with the expressed purpose of getting her to kill Kenichi, following which her mental state will be completely subject to Jenazad's manipulation and the brainwashing process to convert her into his thinking will be complete. Jenazad detests peace so much he is willing to kill his country's deposed princess (the sister of the aforementioned 'dead' YOMI disciple), who is all for restoring peace to the nation. Silcardo Jenazad winds up being the only Nine Fist member to get killed off for real - by a fellow Nine Fist, the aforementioned Akira Hongo, no less.
The Nighmare from Kirby of the Stars made the demon beasts seen throughout the series. He eliminated an entire La Résistance group save for a few survivors and likes making monsters and terrorizing planets (Popstar soon to be one of them), just because he likes doing it. He also sped up the asteroid Gerath's course to crash into Popstar itself.
Akai in Kite is a cop, who thinks he's making justice by sending the girls he rapes to kill other criminals. He killed Sawa's parents, raped her many times when she was a little girl, turned her into a killing machine and kept her at his service by giving her earrings filled with her parents' blood, aside from having put other girls through similar treatment. The permanent smile on his face shows that he has no remorse at all. The lack of remorse is accentuated by his slightly retarded partner-in-business-and-raping, Kanie, acting as a foil for Akai, who is perfectly aware and proud of the atrocities he commits.
Maestro Delphine Eraclea from Last Exile, the leader of the Guild. A decadent, heartless aristocrat and a Manipulative Bitch who makes her younger brother Dio live in fear of her and ends up mind-raping him into insanity. If that wasn't enough, she tricks Luciola, Dio's only friend before Lavi and Klaus came along, by pretending to agree to let Dio go free... but Luciola ends up being dissolved by the ring she gives him. She also takes delight in pointing out how the delicious meals she eats needlessly waste the resources of the world...and goes as far as to say that the fact that people have died in order for her to eat such delicacies makes her meals all the sweeter. It can safely be said that Delphine is a beautiful, soullessbeast.
Prince Braunschweig of Legend of Galactic Heroes certainly qualifies in a series full of Gray and Grey Morality. When protesting occurs on the colony world of Westerland, Braunschweig's response is to kill every single inhabitant in a nuclear strike...not even covering his continuance of the Goldenbaum dynasty's despicable policies.
The day karma came calling, Rudolf only cemented his status: when his only son, borne to him by his favorite mistress (and possible One True Love), was discovered to be a congenital idiot (simultaneously invalidating all his übermensch rhetoric and kicking him in the balls on a personal level), he ordered that any and all involved in the birth be executed - doctors, nurses, even the mother herself. Living to old age with no loved ones and Dying Alone hardly seems punishment enough, but like Real Life, life in Legend of the Galactic Heroes is seldom fair.
CaptainContinental 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 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.
Yokoya from Liar Game doesn't directly kill or hurt anyone, but while everyone else is in the Liar Game to win money to pay back their huge debts, Yokoya has plenty of money and only plays the game to manipulate people for his own amusement. He couln't care less whether or not people end up with millions of dollars in debt and will probably be traded as slaves to pay it back. He also used money, fear, and distrust to take control of his high school as a teenager. Although the 1941 Hitler is his role model(itself an obvious indicator), he thinks Hitler's greatest crime is not finishing what he started. As a matter of fact, this quote says it all:
"...Some of his actions were despicable... Suicide when only half way to his goal! He could not be a true dicator... At the end of the day, he's still a failure... I will not become a failure like Hitler. Nothing will stop me from becoming a true dictator. In life... And, of course, in the Liar Game..."
You have a more direct example with Liar Game: Roots of A with a one-shot dealing with a treatment facility. The director is keeping the completely curable patients in "treatment" to leech government subsidies, i.e. make a massive profit and a source of free labor, while abusive guards torture and beat up these patients.See these pages for yourself.
Manami from Life is about as much a Complete Monster as a teenage girl in a normal high school setting can be. She's tried to get the protagonist and her best friend murdered, raped and possibly made into a Snuff Film. She's tries her best to make Ayumu's life a living hell, forces all the other girls in her class to either bully certain individuals or face the same sort of harsh bullying and says she aims to kill her bullying victims (be it by driving them to committing suicide or other measures).
Grace O'Connor in Macross Frontier, who uses a fleet of millions of people as tools to take over the galaxy. The ultimate plan is to Mind Control a race of beings (the Vajra) in order to subjugate the other race of beings (Humans and Zentradi) and give them all the ultimatum of Mind Control implants or death, in effect enslaving the entire galaxy not just physically, but mentally as well. Yet despite all this, possibly her greatest crime is what she did to one little girl. She murdered her parents, tormented her on the streets where she was homeless and alone, and finally used her in an experiment that causes extreme pain, and assuming she didn't die like the previous eight subjects, she would still die in ten years. Her name was Sheryl Nome. She was seven years old. Grace becomes something of a tragic case, as she comes to admit to herself that over the ten years she raised Sheryl, she came to care very deeply for her. She decides these feelings are probably going to get in the way of her mission and deletes them in what could be considered a very subtle but all the more damning crossing of the Moral Event Horizon.
Magic Knight Rayearth is a show notorious for giving all of its characters a sympathetic, or at least understandable, motive for what they do. Nobody is a Complete Monster here. Except one: the Big Bad of the second season of the anime, Lady Debonair, an Eldritch Abominationborn from the collective fears of Cephiro's people who wants (just like the above-mentioned Wiseman, and possibly Yuki and Johan) to destroy the world for no understandable reason, cannot be reasoned with, and will use any despicable trick in the book to get her way. Even reading this does not convey how horrible she is, but when she abandons her own "daughter", Nova, to her fate after she fails in defeating the Magic Knights...well, that's when it truly sinks what kind of monster we're dealing with.
While Magi - Labyrinth of Magic has several unnecessarily cruel villains, most of them have some minor redeeming qualities or Freudian Excuse, with one big exception: Jamil, the ruler of Qishan. Smug Snake, Dirty Coward, you name it. He also gets quite a kick out of abusing slaves and underlings, and flashbacks show him doing this to children — all with the cheerful, smug grin of a true sadist. Morgianna is so loyal and obedient to him that, at first, it appears to be a case of Happiness in Slavery, until her point of view shows that his physical and emotional abuse has simply broken her into unconditional obedience. He's also the only villain that the cheerful, idealistic Aladdin makes no attempt to redeem or befriend.
All of the psycho killing and betrayal in the anime Mai-HiMe is ultimately a result of Nagi's direct and indirect manipulation. He gives the girls their powers and then creates monsters for them to fight in order to train them to use violence to solve their problems. Then he manipulates a few characters to get the massive betrayals and killings we see in later parts. It is not clear exactly why he does this (though he laughs his head off over the betrayals and fawns over the killers) or who he is. Supposedly, he is just serving the Big Bad of the story, but the Big Bad is more of an Orcus on His Throne. At the end, Nagi seems to imply that he himself is an immortal demon and that, though the Big Bad is dead, Nagi can't be killed and will be back.
Tomoe Marguerite started out as a manipulative bully and Alpha Bitch who was in love with Shizuru, but after joining the Schwarz, she refused a Last-Second Chance to rejoin the Alliance and threatened to kill them all because she enjoyed making people suffer and the lives of everyone but Shizuru was meaningless to her. She later says she does so because she "always get[s] what [she] want[s]", pretty much cementing her "heartless bastard" status in the eyes of a lot of fans. Her Karma Houdini status doesn't help.
Nagi, the Big Bad of the setting, is a dictator who takes over Windbloom, releases forbidden technology, and starts a world war, supposedly to encourage evolution, but in the end, he reveals he just wanted to see if humanity would kill itself if given the chance. He is taken lightlyat times, especially before he puts his plans fully into action, but it is clear that he has no morals and everyone obeys him out of fear.
In the manga, Tomoe is Demoted to Extra and displays none of the repulsiveness of her anime counterpart. Her Complete Monster credentials are passed over to Big Bad Sergey Auguste Taiki (a far cry from his Punch Clock Villain counterpart Sergay Wang in the anime), who believes that the world is full of lies and needs to be destroyed for things to be put right once again. Not only is he abusive and cruel towards protagonist "Manshiro", and not only does he manipulate most of the cast, but he also frees the dark HiMEs and manipulates the Not Quite Dead real princess Mashiro in order to achieve control over Dark Mai and Fumi, using them as weapons to achieve his ambitions. Then, with Fumi under his control, he murders Mashiro when he didn't need her anymore and starts wreaking havoc on the world, while raving that the truth doesn't exist and that the "fake" world needs to disappear. He is only stopped by a Big Damn Heroes moment from Ensemble Darkhorse Erstin and a spectacular Combination Attack from the main Power Trio (Arika, Nina, and Ers) that takes out Fumi. As he lays dying, though, Sergay gets one last hurrah and manages to trick "Manshiro" into coming close, nearly killing him, stealing his Pure White Diamond and going One-Winged Angel to completely destroy the world. "Manshiro" turns out to have survived somehow, though, and with the help of all the Otome put together, he destroys Sergay after giving him an awesome "The Reason You Suck" Speech, pointing out how Sergay never loved anyone, not even himself. A pretty bad SOB, to be the counterpart of an overall decent person, huh?
Sicks from Majin Tantei Nougami Neuro absolutely revels in his evil. A monster from birth who slit the other babies' throats in his nursery and later murdered both his parents, Sicks comes into conflict with the Anti-Hero demon detective Neuro. Sicks tracks down his clone, X, and murders X's love, infiltrating the police by wearing the skin of a man he killed. He punishes a subordinate who had failed to find X by making him saw himself open with a rusty saw, admitting he didn't care about a fair punishment: he just wanted to see the man die. To present a meal for Neuro, a demon who eats mysteries, Sicks forces a mansion's worth of people to commit murders in inventive ways...and then blew them up when Neuro was repulsed by the gesture. When recruiting his 'Fingers,' Sicks presented one with a cube made of the faces he had ripped from everyone close to him, and with another he forced him to murder his own father. Sicks' goal was nothing less than the absolute annihilation of humanity as well and on his orders, Japan suffered catastrophic death tolls before he and Neuro finally engaged in a Duel to the Death.
Admiral Haruki Kusakabe from Martian Successor Nadesico establishes himself as a very detestable person near the end of the TV series, by framing Tsukumo Shiratori for treason and having his former best friend Genichiro "mercy-kill" him, all in order to prolong the war between Earth and Jupiter and have a chance to seize Mars' forgotten technology. He is finally discovered and forced into exile, but plotting revenge...and what marks his real entrance into Complete Monster territory is the fact that, in the three years between the series and The Movie, he had Akito and Yurika captured and experimented on to replicate the Boson Jumping effect. The experiments permanently hooked Yurika up to a machine, in a catatonic state, and completely destroyed Akito's senses, leaving him an empty, tragic shell of the innocent boy he was. He's also a Karma Houdini, so it's even more infuriating...and it makes it even more cathartic when you get to kill him off in some Super Robot Wars episodes. Preferably with Akito and Gai's Double Gekigan Flare...
His Karma Houdini status would have probably been undone in the sequels, but, since Word of God is they've all been cancelled with no chance of ever being made...
There is also Yoshio Yamasaki from the same movie, the Martian Successors' resident Mad Scientist who was directly responsible for doing all those horrible experiments on Akito, Yurika, and Lapis - and possibly on a lot more people before them. This guy is the most chilling character in the whole Nadesico series: there is something about his cheerful and friendly demeanor, even as he's committing all those atrocities, that only manages to make him more horrific. It's not that he enjoys his cruelty. He just has no feelings whatsoever about it. To him, ruining countless people's lives or mind-raping an innocent girl into becoming a mindless machine is just as mundane as brushing his teeth in the morning. Think about it - he won't even have his conscience to answer to; he has no conscience, period. He's just pure intellect unbrindled by emotion. Think an evil version of Lloyd Asplund, make him a hundred times worse, and you've got Yamasaki.
In Mawaru-Penguindrum, up until the first half, those opposing the Takakuras were revealed to have at least a sad or sympathetic background, I.E, Masako chases after Kanba relentlessly, but she also wants to save her brother Mario; Sanetoshi is a Manipulative Bastard, but he lost his "special person" and still longs to find her again. However, in episode 15, we see that the latest "antagonist", Yuri Tokikago, is a thoroughly broken person, and a Complete Monster was to blame. Said monster is her own father, a famous Mad Artist who carved his daughter's body with a chisel to make her "look beautiful" and be worthy of his love, while telling her that no one would ever love her because of how "ugly" she was. This happens in a flashback and that, in these scenes, Yuri is no older than 8 years old. And it's really not helped by the huge sexual abuse vibes and the implication that Mr. Tokikago either killed or drove away Yuri's Missing Mom because she lost her "perfect beauty" after giving birth to Yuri. No wonder said person developed some of the biggest issuesin a series that's already very complicated.
Metroid's Ridley, in the manga adaptation, is the series version of evil incarnate. His first encounter with Samus has him landing on Samus' home of K2-L, and telling his minions to "First enjoy the slaughter to the fullest!" Not long after killing most of the planet's workers, he tries to kill the three-old-Samus, but her mother saves her. He later eats her parent's bodies after Rodney Aran destroys his ship and badly wounds the giant space dragon. This comes up later when Ridley uses this fact to send Samus into a Heroic BSOD.
Dodo from Mixim is a Monster Clown with only one purpose and drive in life: to devour all he can. Dodo is initially a member of the Big Bang Zero group and is one of their four elites. He is also the only one to lack any redeeming quality or Freudian Excuse for his actions. What sets Dodo apart is how he devours the populations of entire plaets, including women and children. He relishes in what he does and has no loyalty to his allies. When one of them, Heigar, was injured, Dodo took the chance to devour him. When he encountered two children on one world, he tried to eat them as well, not caring they'd be future allies. In his final battle with the heroes, he even killed the team mascot before attempting to kill and devour all the other good guys as well.
Hayao Miyazaki isn't fond of villains and when it comes to antagonists, his movies are chockful of either (initially) villainous characters who turn out to have a good side to them as well, or "good" characters who turn out to have a few nasty tricks upon their sleeve. There is one subversion in the Ghibli canon, however; Castle in the Sky, which features Colonel Muska, a government secret agent on a mission to retrieve Laputa. Once he does, at the expense of the heroes, he reveals he is the descendant of the Laputean monarchy, forces his way to the middle of the floating island and starts utilizing its sheer force to turn on everyone. While he sheds his Affably Evil front, he gleefully kills most of his allies by throwing them off the island to their deaths, thus crossing the Moral Event Horizon. Basically, Miyazaki's only true villain suitably plays this trope straight.
Apos, with his golden hair, crimson eyes, and beautiful features resembles an angel. The truth is markedly different. Apos is an immortal who finds amusement in suffering and agony. Apos hunts down female immortals and rapes and tortures them physically and mentally to consume their 'core' of immortality. The suffering improves the taste. Apos's obsesses over the heroine Rin Asogi and has his female subordinate Laura disguise herself as Rin to ruin Rin's name with a series of murders, and also satisfy his lust by raping her. At one point, he brutally crucifies and rapes Rin's best friend and lover Mimi simply because he was bored waiting for Rin's arrival. Apos is behind nearly every evil plot in the series and engineers a plot to turn the world against immortals and turn on itself by causing a nuclear explosion with an immortal seen as a survivor, before revealing the world tree Yggdrasil to the world to have humanity infected with the time fruits and become immortal so he cna harvest them at leisure. Apos betrays Laura and forces Rin to kill her old lover apos had turned into a carnivorous Angel in self defense, before personally executing her current lover (Apos's own father) and attempting to sacrifice Rin to Yggdrasil. When asked what he wants with the world, Apos's response is simple: I want to taste it!
Sayara Yamanobe, second only to Apos, is a repulsive, callous scientist, who masterminded the cloning program that killed the original Koki Maeno. She keeps the failed test subjects as ravenous, flesh-eating zombies that suffer every moment they're alive. When she has Rin in her care, Sayara proceeds to molest and then torture her to death while it's more than just implied that she molested and raped Koki as well, also being hinted this is routine for her. Sayara later just attempts to wipe out all human life and she would be the morally lowest character in any other series, so it says a lot about Apos that he's the lowest, the most depraved and the most disturbing one in Mnemosyne.
Redda of Mon Colle Knights rarely picks fights with characters that are either weaker or stronger than he is, but that's because he doesn't need to. Instead, he prefers to stick with his mastery of manipulation, which he takes pleasure in using on others, especially to the point of driving them to suicide, and loves subjecting things to disturbing splooshy transformations. And that's not all: he even takes Rockna hostage and sticks her inside Dread Dragon's neck and commands it to create a wormhole that sucks all of Mondo's monster friends inside it, leaving Mondo with a Heroic BSOD, after which it takes him a bit to get better. And thanks to Redda himself, Rockna was ACTUALLY this close to being slaughtered in a truly terrifying way.
Monster is dedicated to exploring whether there is such a thing as Pure Evil, or if anybody, no matter how heinous, can be redeemed. The series' conclusion is that while anybody can be redeemed, it is titular character Johan Liebert's refusal to seek redemption that makes him a monster. A sadistic chessmaster and manipulative bastard since he learned to walk and talk, Johan is on a personal journey to become, in his own words, as dark as possible, all while trying to find out if there is anyone as evil as he is out there, or failing that, force the heroic Dr. Tenma, and/or his own pacifistic sister, Nina Foertner, to kill him in cold blood. In this way he hopes to establish that even the best people can become just like him. Along the way he convinces children to jump from rooftops, gets a recovering alcoholic drunk before throwing him off a building, and convinces various serial killers to murder every foster family he has ever lived with, as part of his quest to become an unperson. Numerous Freudian Excuses are proposed for Johan's behaviour, yet each and every one is ultimately undermined, revealing that in the end, Johan simply is what he is, and what he is, is pure, unadulterated evil.
Osamu Tezuka's manga MW features the single most hateful and sociopathic character Tezuka has ever created, Michio Yuki, who is a blackmailer, bisexual rapist, kidnapper and murderer. In one chapter, he seduces and kills (for sexual thrills) the daughter of the president of the bank he works at, fakes her kidnapping, (anonymously) extorts ransom money from her parents, then robs her father's bank and pins the robbery on the dead girl by impersonating her and finally kills her father by making him lose his grip on a precipice by throwing lit matches into his mouth.Michio does this for his own amusement. His crowning achievement would be stealing a classified military neurotoxin and slaughter as many people as he can with it in vengeance for his own mortality. He doesn't succeed, but still manages to fake his own death and get away clean. To see the man who created Astro Boy come up with someone this messed-up rattles the eyeteeth more than a tad.
The Mysterious Cloaked Guy (revealed to be Inasa) in Nabari No Ou. To start, he kills four-year-old Miharu - in a pretty gruesome way, no less. Later, he reveals that he's not only another immortal like Aizawa and Shijima, he's also actually Fuuma Kotarou...who's been tricking, playing with, and manipulating everyone from the start because he won't let anything stop him from possessing his "lovely Shinra-chan", though as he said, and Aizawa admits, he has been telling everyone all along that he wanted the Shinrabanshou...
From Mohiro Kitoh and his utter disbelief in the notion that Children Are Innocent, we have Alpha Bitch Aki Honda of Naru Taru, who is a triumphant example of Kids Are Cruel in manga. Aki relentlessly bullies one of the protagonists, Hiro-chan, with daily mockings or beatings. Eventually, she forces her to eat worms. She later rapes Hiro-chan with a test tube, threatening to kick her in the stomach with the glass tube inside her. This is what makes Hiro-chan utterly snap.
Naruto is an idealistic series with most villains achieving redemption or having redeeming qualities. That said, two of them outstrip others in atrocity and have nothing redeeming whatsoever to them.
Orochimaru was the series' first monster, and one of its worst. Formerly one of the three Sannin, and a hero of the village, Orochimaru was driven out when it was revealed that he was a Serial Killer and Mad Scientist, who had performed sick experiments on captured villagers, genetically altering infants in order to create super soldiers, and murdering others in an effort to unlock the secrets of immortality. He joined up with the Akatsuki, but was expelled after he tried to bodyjack Itachi Uchiha, and struck out on his own, recruiting lost children into his Hidden Sound Village with promises of power. He infiltrates the Chunin exams, corrupts Sasuke with the curse mark, and then triggers a war between the Sand and Leaf Villages. During his battle with his former mentor, The Third Hokage, Orochimaru sacrifices three of his men in order to summon the the First, Second, and Fourthnote this one fails to fight against the third, resulting in the Third's death. He later does his best to kill his former friends Jiraiya and Tsunade, completes Sasuke's turn to the dark side, and is defeated while trying to steal his body. Having long ago shed any good qualities he once had, Orochimaru shows how low even those with once good intentions can fall, having reached the point where he does not even remember them anymore.
Hidan, who unlike the rest of the Akatsuki, has no real Freudian Excuse. An Axe CrazyPsychopathic Manchild and member of a Religion of Evil, Hidan worships violence and death, and sees mercy (or indeed, anything other than fullscale slaughter) as a sin. He and his partner, Kakuzu, corner and capture the Two-Tails jinchuuriki, Yugito Ni, delivering her to Pain for draining and, eventually, death. The two of them subsequently slaughtered a temple's worth of monks in order to collect the bouny on the head monk, Chiriku. During the battle at the bounty station, Hidan engaged Asuma Sarutobi in combat, and used a religious ritual to bind their souls together, then began mutilating himself in order to torture Asuma, ultimately leading to the Leaf Ninja's painful death. When Asuma's student Shikamaru confronted Hidan, Hidan mocked his mentor's memory, and attempted to inflict the same fate on Shikamaru.
Gemma Himuro of Ninja Scroll is the leader of the Eight Devils of Kimon, and stands out from his men in his callous disregard for all around him. In the past, Gemma betrayed his allies and framed a warrior named Jubei Kibigami for the betray, forcing Jubei to kill his friends in self defense. In the present, to cover for the Eight Devils' movements, Gemma has a well poisoned to wipe out an entire village. He organizes multiple massacres and even murders his employer, declaring he himself will be the true ruler of Japan in the end. Gemma also kills Jubei's beloved, Kagero, in front of him, solely to hurt Jubei. Gemma, in the end, cares for nobody. The deaths of both his lovers in the Eight Devils arouse no emotion in him, and he witnesses every ally he has die without even changing an expression. His only concern is the gold imported to Japan, all to feed his bottomless greed.
Shirou Hisujikai of Ookami-san seems utterly delighted to recount his sins to Ryoshi, even with his victim standing right beside him to hear everything. He shows great zeal in revealing to Ryoshi how he attempted to rape Ryouko Ookami, at that time his innocent, trusting girlfriend, and then smear her reputation when she tried to tell others what he had done
Hazanko of Outlaw Star is high ranking member of the Kei Pirates, right behind their two supreme rulers in terms of power and authority. Not satisfied, Hazanko schemes to overthrow his masters and rule over the Galaxy. Hazanko governs the assassin squad, the Anten Seven and routinely uses them to slaughter whoever he deems a potential threat with little care to collateral damage. When he encounters the heroes, Hazanko gruesomely kills Harry Macdougal, one of the rivals of the Outlaw Star crew and proceeds to mentally torture The Hero Gene Starwind and his Robot Girl beloved Melfina. After an initial defeat, Hazako merges with his own ship, gaining power by devouring his crew and becomes an incredibly powerful being with Omnicidal Maniac inclinations, planning to aim far further than just his erstwhile masters in who he intends to slaughter and conquer.
Herbert Muller from Phi Brain Kami No Puzzle - in his initial apperance, he tricked a kindergarten teacher to lead a bunch of little children into semmingly innocent puzzles, which he remade to be deadly, just to hope this level of fear will consume Kaito and his friends and get them killed. Yes, he has absolutely no problem with sacrificing little children to get his opponents. He is also said to be the "dark face" of P.O.G., implying that all it's members we seen until this point were the better side of the organization. One of them wanted to destroy a city if his puzzle wasn't solved. And Muller is apparently worse.
Pluto has Adolf's brother, who was a serial killer of robot children. Two things to put in perspective how bad he was. First, when Adolf wants to avenge him, he gets What the Hell, Hero? speech from his own wife, not because he wants revenge, but because he wants it for the sake of such a bastard. Second, Fantastic Racism in this world is so big that there exists Anti-Robot cults that is a KKK, and even they think this guy was a despicable scum.
Kawarino from Yes! Pretty Cure 5 is The Dragon to Despariah, but he ends up being much worse than her. He enjoys manipulating people and crushing their dreamsjust because he can. The Nightmare organization may never have been a nice place, but Bloody, Kawarino's former superior, notes that Nightmare at least had teamwork before he took charge. He claims to be working for Despariah's immortality, but this seems to be just an excuse to spread despair. He mind rapes the Pretty Cure with his despair masks to turn them into Nightmare's slaves. Then he starts giving his minions the black mask, which gives them a power-up at the cost of their minds. When Hadenya and Bloody refuse to wear it, he shoves it on them anyway. He blasts Bunbee off a building when he tries to leave Nightmare. It's revealed that he was the one who tricked Nuts into opening the gates to the Palmier Kingdom, meaning he was responsible for its destruction and all its citizens becoming brainwashed employees of Nightmare. In the end, when Despariah contemplates a Heel-Face Turn, Kawarino is shocked and outraged at her before Bloody comes back to kill him.
Severin from Princess Resurrection. This cowardlySmug Snake is the opponent against whom Hime (normally a calm, collected Lady of War) came the closest to losing her cool, and with good reason: before the series even began, Severin used his necromantic powers to raise an army of zombies and sent them to kill Hime, which caused her to lose all of her blood warriors - something which she still considers her greatest failure. Then, he does it again in Volume 5, infecting a whole city with a zombie plague and causing hundreds, if not thousands, of innocent victims - once again, just to kill Hime. Unlike Hime, who genuinely cares about her blood warriors despite her outwardly cold demeanor, Severin abuses and humiliates his servants every chance he gets. And just to top it off, he's the reason Hime hates being called by her actual name of Lilian: that's the name Severin gave to his cat, whom he tortured to death For the Evulz - which implies that he wanted to do the same to Hime as well. Luckily, he gets a very satisfying Karmic Death when Hime outgambits him and slits his throat with his own sword.
Keith White in Project ARMS is willingly the head of a research group that uses humans (usually children) as test subjects for painful, unethical and often deadly experiments. When Alice asks if she and the children could just see the outside world for a second, he hits her. He then has all of the children shot, which leads to Alice being shot and merged with an alien lifeform, something which he shows absolutely no sorrow or regret over. When a colleague denounces the experiments as unethical, Keith laughs at him. Then, he creates multiple child clones of himself and implants them with nanotechnology, causing most to turn into monsters and die painfully. Even later, he shows up, taking over Keith Black's body and is thrilled at the thought of Alice launching a nuclear missile and driving the Jabberwock to blow up America with anti-matter. When Keith Violet tries to talk him out of it, he tosses her off of a building. Top that all off with him kidnapping Katsumi possessed by Alice to get her to be taken over by the ARMS Bandersnatch and freeze the entire world. He kills Keith Blue, his son, with absolutely no remorse.
The Director from Pure Trance qualifies. The story never presents any positive traits in her, and gives plenty of reasons to loathe her. She is shown as being directly responsible for the deaths of two of the nurses working under her (one of whom she kills by force-feeding her poison pills until she bursts), in addition to being an incredibly negligent surgeon who has killed many more women through her incompetence. Her Establishing Character Moment is stabbing and killing the mother of a woman she killed in surgery (by placing a pornographic magazine in her abdomen instead of the necessary organ). The Director is an unrepentant drug addict as well, stealing medicine needed by her patients for her own recreational use; while on drugs, she becomes even more wildly violent and unstable. In what is arguably her absolute worst moment, she attempts to freeze-dry two barely-born twin children and turn them into a pair of earrings.
First is the prison doctor Sasaki. Sasaki hides behind the veneer of a kindly old man but in reality, he is a cruel sadist who regularly rapes attractive male prisoners. Sasaki coerces them by holding privileges and favors over their heads. One prisoner is eventually Driven to Suicide thanks to Sasaki's molestations. Sasaki schemes with the warden Ishihara to murder anyone who knows the truth and after leaving behind the prison, continues molesting young boys when conducting a political campaign.
Sasaki's partner in crime at the prison, Warden Ishihara. Ishihara is a corrupt prison warden who delights in exercising sadistic authority over the prisoners by regularly conducting beatings or giving out punishments that are massively out of proportion to minor offenses. Ishihara gives prisoners to Sasaki to rape and proposes murdering those who discover the truth to cover his tracks. When the series' initial hero, Sakuragi, finally defeats Ishihara, he gives the warden the evidence of Sasaki's crimes to make Ishihara leave his friends alone. Ishihara's response is to stab him.
Wagnard of Record of Lodoss War is an Evil Sorcerer who was kicked out of his wizard's academy for practice of the black arts. As a result, the egotistical Wagnard has decided to awaken the destroyer Goddess Kardis and cause The End of the World as We Know It largely out of nothing more than spite and a petty grudge. Wagnard uses many as pawns, leading to large scale battles and many deaths to catch the pure-hearted priestess Neese, who is the reincarnation of Kardis. Wagnard spares no effort in trying to murder her friends, and when he has Neese captive, subjects her to Cold-Blooded Torture to awaken Kardis within her. At the end, Wagnard expresses sheer glee in awakening Kardis to kill all that lives, solely so he can reign supreme in a 'Kingdom of the Dead.'
In Reiko The Zombie Shop, Saki Yurikawa is a mentally messed-up, knife-wielding serial killer obsessed with finding little girls to replace her dead ( actually comatose) little sister. When the girls refuse to comply or make Saki made in any way, she snaps. Her two debut stories in the first volume, Dead Sister, reveal that she has already murdered over thirty little girls, including one of her classmates, an investigative reporter, her cameraman, and Reiko Himezono herself. In the case of the investigative reporter, Saki had threatened to murder her daughter if she didn't get to her apartment in ten minutes. The reporter managed to get to the apartment in time. Saki already killed her daughter. In the battle against Reiko, Saki finally gets her Laser-Guided Karma by way of Reiko summoning a portal to hell, where Saki is greeted by her many victims. All this despite Reiko being reduced to a severed head. In the next volume onward, Saki is now forced to silently serve Reiko as her personal zombie.
Akio from Revolutionary Girl Utena is the epitome of heartless, callous selfishness. Once the heroic Dios, Akio grew disillusioned with being the hero and allowed his sister Anthy to be tortured for what amounts to centuries. As one of the prime figures at Ohtori Academy in the present, Akio seduces many high ranking figures (including his fiancee's mother) in order to manipulate them and runs the Rose Duels that essentially pimp his sister Anthy to the victors, abusive or otherwise. Akio gains a cold enjoyment out of mentally ripping apart those near him, including his fiancee who it's also implied he's physically poisoning to get her out of the way. He views Anthy as nothing more than a means to ultimate power and when at one point she's hesitant to continue their weekly tryst one night, he angrily rapes her anyways. Akio seduces Utena and takes her virginity, manipulating her feelings for him to send her into a final confrontation to be sacrificed for his 'revolution,' where he will rise above the world. Akio views people around him as nothing more than pawns or toys, to be mentally or physically used and discarded as his plans or his whims demand.
Emperor Zu Zambajil of Voltes V, ruler of the Boazanian Empire where the horned upper classes are the rulers and the hornless are little better than slaves. Zambajil engineered the overthrow of his elder brother when he discovered his good-hearted sibling was actually hornless and proceeded to hold Boazan in his grip with the Fantastic Caste System, manipulating his brother's son Prince Heinel into becoming his pawn and puppet. By manipulating Heinel, Zambajil is responsible for his actions, including his war of conquest on earth with all the atrocities and death that resulted so the Boazan empire could gain more slaves. Eventually fearing Heinel's potential, Zambajil tried to have him killed. When Boazan is taken in the war and the hornless have won their revolt, Zambajil attempt to flee and when confronted by the Voltes team, he attempts to pin everything on Heinel and let his nephew take the fall for his own war crimes.
Empress Janera, the true Big Bad of Combattler V is cruel even by Super Robot standards. Initially wanting to Take Over the World Janera sent her onsters to destroy resistance, but was always blocked by Combattler V. It is revealed Janera even oppresses her own people, the Campbellians, inspiring their true leader Deus to return and lead a revolt against her forces. Realizing time is short, Janera opts for a new solution against Earth: leading an attack personally, she deploys a bomb to the earth's core to destroy the planet and kill everything on it.
From the third entry in the trilogy, Anime/Daimos we have two. The first is Big Bad king Olban of the Winged Humanoid Brahmin race. While most Brahmins are Anti-Villain or Noble Demon types, Olban is a power-hungry, cold hearted tyrant who states his people only exist for him to rule them. Olban rose to power by murdering the previous king, and masterminded the war between the Brahmins and humanity. He blamed the humans for his ruler's death, taking advantage of the Brahmins' despair after the loss of their power and risking their extinction simply to gain him more to rule. He displays no compunction in attempting to murder his dead sovereign's children as well.
Chief General of Earth, Sakimori Miwa, a brutal General Ripper who believes the best way to win a war is to exterminating your enemy to the last man. Ostensibly on the heroes' side, Miwa tries to undermine them at every time, even accusing them of treason and despite his job being to protect humanity, he doesn't care when civilians are caught in the crossfire. He also proceeds to execute groups of defeated and helpless Brahmins simply out of hatred. In many ways, the genocidal, brutal Miwa is simply as bad as the power hungry Olban.
Gyokuro Shuzen of Rosario + Vampire is the Evil Matriarch of the Shuzen family and the leader of the genocidal anti-human organization Fairy Tale. In her position, Gyokuro tasks her men with sowing the seeds of the Human World's destruction, aiming at nothing less than humanity's annihilation by awakening the ancient vampire and Eldritch Abomination Alucard. Gyokuro also brainwashed her gentle, kind daughter Kahlua into being an efficient assassin that cannot refuse her orders to kill, viewing Kahlua as a proud achievement. When she confronts the heroes, Gyokuro rips off her stepdaughter Moka's Rosary Seal, and proceeds to cheerfully laugh, enjoying the pain it causes Moka. It is then revealed that Gyokuro had implanted bits of Alucard into the other Shuzen vampires, which have devoured them from the inside out and turned them into ravenous ghouls. When Moka begs on hands and knees for Gyokuro to save her beloved Tsukune from this fate, Gyokuro agrees...and then mocks Moka's weakness before punching her in the face. She even directs Kahlua to murder her beloved little sister Kokoa with no remorse, Kokoa being Gyokuro's own daughter as well. It's revealed Gyokuro's rage stems largely petty jealousy at Moka's mother, her rival Akasha. When she fuses with Alucard, Gyokuro gloats that she will destroy everything Akasha ever loved and destroy the world she protected. Beautiful, sadistic and unforgiving, Gyokuro viewed all in her path as nothing more than stepping stones for her own power.
Jeanne of Valois-Saint-Remy, the person who brought down Marie Antoinette and started the Revolution. Her first Moral Event Horizon was when her sister Rosalie managed to find her after she conned her way into nobility, she had her lover whip her and nearly kill her to drive her off. Her second? Killing the kind noblewoman who took her in to inherit her fortune. Third...the entire diamond affair. Note, in the manga she at least has the trait of loving Nicolas, her lover and later husband. In the anime...she doesn't. All she loves is money and herself.
The Duke de Guemenee kills a boy named Pierre right after promising not to hurt him after he had stolen his wallet out of hunger. He laughs after gunning the boy down, and Oscar has to be restrained not to throttle him.
Dr. Kenmi from Sacred Seven was revealed as this in later episodes. To activate the mysterious Darkstone powers, Kenmi enacted torturous experiments on people and had murdered one heroine, Rinoa's, parents in order to force Rinoa's sister Aoi to activate her powers. Kenmi later attempts to rip out another heroine's heart after causing her financial ruin for his experiments, and is even revealed to have been behind the 'random' Darkstone attacks early in the series that had caused so much grief, all in an attempt to force his test subjects to go berserk.
As idealistic as Sailor Moon is, there are several villains in it who cross the ultimate lines:
Wiseman of Sailor Moon R is the most vile of all the main villains through the long run. Wiseman corrupts the Black Moon Clan into villains and used them to turn the peaceful, utopian Earth of the future into a barren, desolate wasteland while using Mind Rape on a little girl to turn her into his Dragon. Worse still, this is Sailor Moon's future daughter and Wiseman happily sends her to murder her friends and her parents. Wiseman's own allies fare no better. Wiseman manipulates Esmeraude of the Black Moon Clan into turning into a monster, sending her to her death. When Saphir, the brother of the clan's leader Prince Dimande, attempts to warn his elder brother of Wiseman's treachery and his true plans Wiseman painfully executes him in front of Dimande. Wiseman later kills Dimande as well when he sacrifices himself for Moon in the anime. Revealing his true nature as Death Phantom, Wiseman intends to to destroy all that lives solely out of boredom and spite. Before he became Death Phantom, he was a depraved mass-murderer in the manga as well. Of all the villains in the series, Wiseman was easily among the most personal, and the most monstrous.
The manga version of Shuichi Tomoe was no slouch. He was supposedly a loving father once (or at least Hotaru thinks so), despite being a Mad Scientist even then. He completely snapped after the accident in his lab that crippled Hotaru (her manga self is a heavily scarred cyborg, thanks to it) and killed her mother, willingly joining Death Busters and implanting the egg of Mistress 9 into Hotaru's body without any sort of second thought. He also had a massive A God Am I complex and wished to create a new race of superbeings, starting with himself. He was toned down in the anime, where he was mostly a Brainwashed and Crazy father who made a Deal with the Devil to save Hotaru after the freak accident - not knowing that they'd be rendered insane in different ways. The manga version, however? Pure evil.
Saint Seiya is an idealistic series, but it has an utter monster:Cancer Deathmask, one of the twelve Gold Saints and one the mightiest warriors alive. Unlike his companions who are mostly honorable warriors, Deathmask is a psychotic murderer who views his position as a warrior of justice as a way to have his fun and destroy whatever he wishes. When the heroes, Seiya and Shiryu confront him at his sanctum, they discover the souls of countless innocent people Deathmask has frozen into the walls, even children who have died as 'collateral damage' to Deathmask and that he keeps enslaved as twisted trophies. He and Shiryu fight one another and Deathmask, when he realizes Shiryu's sister Shunrei praying for Shiryu, he attempts to psychically murder her. When he opens a hole to Tartarus, the souls of Deathmask's victims try to stop him, only to have him flung their souls to the underworld, gloating at the numbers of the tormented souls are just proof of his prowess as a warrior.
Dr. Tomohiko Katsuragi of Sakura Gari. Not only is he a disgusting pedophile and a Domestic Abuser, he drugs, rapes, and tortures Masataka (this includes whipping him, sticking a household object up his anus right after raping him, and holding his hand in boiling hot tea because of his jealousy over Masataka being the one Souma loves, when he loves Souma to an insane degree himself). Oh, and because Souma hated his stepmother Sakurako for raping him when he was younger, Katsuragi takes his words literally and forces a reluctant, young Souma to kill her. He literally took Souma's hand, which held a knife, and forcibly made him cut Sakurako's wrists, effectively killing her, while she was naked and passed out in the bathtub. And after the act, he also practically rapes Souma. Not only was Souma left traumatised by the deal, but this also contributed to Souma's "half-sister" Youya going from a simply adorable toddler into a scary Yandere and Creepy Child that calls himself "Sakurako", having walked into his mother's murder and gone mad from the horrifying sight. When Souma confronts Katsuragi on his rape and torture of Masataka, Katsuragi denies the accusation and tries to seduce Souma. He acts uninterested and mentions Masataka's name, so Katsuragi actually grabs Souma by the throat and tries to strangle him. Fortunately, though, Souma isn't fazed and deals him a huge Humiliation Conga, which Asayo transforms into a Karmic Death.
Souma's stepmother, aka the real Sakurako, also lands herself a mention here, for the reasons already depicted.
Souma Saiki himself is a brutal deconstruction of the trope. He initially seems like a Complete Monster, at least to Masataka (who calls him out on it with a What the Hell, Hero?), when he tells him that he's responsible for all the deaths surrounding him, saying he effectively drove all his former lovers to suicide, shows no remorse for it, and says that he seduces and sleeps with anyone because he wants it. The truth is a lot dirtier and uglier. And that's before we get to the torture that drove him to be the way he, well, is. In reality, Souma is utterly fucked up due to his past and present, but still not completely monster-ized.
Mukuro from Samurai Champloo is the Evil Counterpart to resident Heroic Sociopath, Mugen. A particularly bloodthirsty pirate, Mukuro is first seen leading an attack on a ship for it's gold, killing the sailors onboard and shoving a lit grenade into the mouth of a subdued man who was begging for mercy. Through flashbacks it's revealed that Mukuro was the one who talked Mugen into piracy, and used him as muscle to kill the guards of a sugar shipment only to leave Mugen to die once he'd stolen the cargo. In present day we discover that Mukuro and his band slaughtered nearly an entire village, including the women and children. The only ones who were spared were the young men that could be used as muscle for his biggest heist yet: a raid on a government ship carrying 60,000 ryu in gold coins. He talks Mugen into joining up with him again, but it's only another set-up. Using his crew as canon fodder to lure the government security onto the pirate ship, Mukuro then uses a mass of explosives in an attempt to kill everyone, his own crew included just so he can keep the gold for himself. Mukuro also proves to care little for his "sister" Kohza, either, since he's spent his life controlling her, murdered her mother, and expresses an unreciprocated sexual interest in her. A sadist with a propensity for betraying everyone he knows and leaving no survivors from his attacks, Mukuro knows exactly what a bastard he is and relishes the darkness within his soul.
Steyr from Scrapped Princess is a Peacemaker of Mauser, a god who uses a set of ironclad laws to control humanity and keep it from self-destruction. Steyr ignores her duties as a caretaker for mankind and instead tries to manipulate the rulers of the country most loyal to Mauser into unwittingly setting up the one situation defined by Mauser's laws in which she would have a perfectly valid excuse to wipe 90% of humanity off the map. While she's affable enough to her fellow Peacemakers, she doesn't really seem to care when one of them dies, and she seems more angry that she has now inherited his duties than anything. She shows absolutely no remorse when her manipulations pay off and she gleefully orders Socom, her more powerful partner and subordinate, to start killing, and the only reason she didn't try to wipe out all of humanity was because Mauser's laws literally prevented her from doing so.
Akechi Mitsuhide in the anime adaptation. He gleefully leaps over the Moral Event Horizon in episode 5. It's not when he goads Nagamasa into fighting Masamune. It's not even when he diverts a squad of riflemen from supporting Ieyasu (screwing over Ieyasu too, in the process) to fire on Masamune, with Nagamasa right in the middle. No, it's when he brings Nagamasa's wife, Oichi, to the site (on the pretense of letting her warn Nagamasa), and then picks the very moment she tries to warn Nagamasa to order the riflemen to fire. It then becomes blatantly obvious that Mitsuhide wanted to kill Nagamasa all along and that he wanted to break Oichi in the process as well, and that he likely did all this for kicks.
Nobunaga himself is most definitely one of these, even if he's not as flamboyant as Mitsuhide. After Mitsuhide broke Oichi, he didn't bat an eyelash at it. He thinks his own wife is nothing to him and constantly puts his sister down and enslaves her to his will. He is also said to be made of pure evil from what Masamune gathers in the anime's last battle, so he certainly lives up to this trope.
Phine, the Big Bad of Senki Zesshou Symphogear, had took over body of her cheerful and friendly descedant, slowly destroying her mind, manipulated the young girl into beliving that she can create the peaceful world she dreams of only by forcing people to stop fighting, turning her into her Dragon, which she abused and tortured - her punishment for a failure was being electroduced - with implied sexual abuse if not outright rape, forced her to use the Artifact of Doom she wanted to test, tried to kill her once she didin't needed her anymore, secretly experimented on the main character, temporary turning her into a rampaging monster that cannot tell the friend from foe, and when offered a chance for redemption, she decided to sacrifice herself to do a Colony Drop. And her motives are extremely convoluded - in the span of few minutes, she goes from wanting to lift God's curse from humanity through creating cultural and climatic disaster that will throw humanity into chaos, forcing them to embrace her as it's ruler, to being Yandere for God - so it's impossible to feel any sympathy for her.
Ryoko Naruse from Shangri-La is a ruthless, domineering woman who governs Atlas with an iron fist and treats most of her employees like slaves or assets. Eventually rising to the position of Japan's Prime Minister, she shows little concern about everyone or everything except her plans and herself, and has children subjected to horrible experiment for her own advancement. She has men from a failed raid disposed of, has captives beaten, and plans to trick the heroine into destroying a great deal to kill multiple people. Ryoko's ultimate plan was to achieve the destruction of the entire world, using the destruction to create a new one that only she would rule.
Kogan Iwamoto, the head of the Kogan-ryuu Dojo in Shigurui, particularly for his treatment towards women. So great is his cruelty in and out of combat that even the psychotics and pedophiles among his students are taken aback. Indeed, in a series full of depravity and madness, he consistently stands on his own mountain of heartlessness. Two key examples are his treatment of his daughter, Mie. He wanted a son instead and only sees her as a vessel for carrying the dojo's heir. Thus, he's willing to watch her get raped by one of his students to make sure she got pregnant, slashed through a student's face for suggesting she should have a husband that respects her, and scoffed at her mother committing suicide when Mie finds her body. When the man first picked as Kogan's successor, Irako, is cast out, she spends years starving herself, eventually reducing herself to a semi-sane bag of bones. He only shows concern once he realizes she won't be able to give birth in such a state, and he almost rapes her himself. As for his concubine Iku? She was seen as cursed by the locals, as every man she gets involved with dies in one way or another. Thus, she is grateful to Kogan because he was kind to her despite that...until one of his top students, Irako, tells her that Kogan killed her first husband just to show off a sword technique. She and Irako become lovers behind Kogan's back; when he finds out, he slices off both her nipples, mutilates one of her breasts by burning it, and then blackmails her into burning a hole through Irako's penis. Oh, and this is AFTER Irako is tricked into getting beaten to a pulp by his fellow students, but BEFORE Kogan personally blinds him by slicing his eyes open.
Hellmaster Fibrizzo of the second season and eighth Light Novel. As the oldest of the Mazoku, Fibrizzo's ultimate goal is the destruction of alll reality. This is pretty standard for Mazoku, but the sheer joy which Fibrizzo conducts his manipulations,and worse, when he tortures and kills his enemies lands him here. There are few other villains in slayers who take such unmitigated delight in causing suffering,especially when Fibrizzo seems to target loved ones to give as much pain as he can to his targets.
Medusa from Soul Eaterturned the show from a funny, off-kiltershonen series into an almost-Cosmic Horror Story. Her list of evil-doings is long and continues to grow. She's a witch who has used her own child, Crona, as a horrible science experiment, driving them to complete madness and not showing an ounce of love, much less regret. When Crona is finally shown, for the first time in their life, true kindness from Maka, they do a Heel-Face Turn. At this time, Medusa is also trying to revive the Kishin using two witches, Eruka and Mizune, that she blackmailed into helping her—she can off them with a snap of her fingers. When she's defeated by Stein, she escapes in the form of a snake and takes over the body of a little girl. She uses this form to her advantage, knowing damn well the protagonists won't kill her if it means killing the child. She gets Crona in Shibusen to act as The Mole and drive Stein to (greater) madness. When her sister Arachne is revived, Medusa goes to Shibusen to ask for their aid in defeating her—she's given Shibusen's best students to help with the job. At this point, Crona's been captured and Medusa tells Maka it was Arachne who took her. When Maka defeats Arachne, Medusa takes over her sister's body and tells Maka she lied: she was the one who captured Crona. As of recent chapters, we see Medusa has driven Crona to insanity and broken him/her again to use against Shibusen and anyone else who stands in her way, all just as an experiment. She then gives Crona the first hug she/he ever got from her, driving her completely mad and killing her, all part of her sick plan.
Speed Grapher is a dark series but a number of monsters stand out.
Chief Ekoda is the head of the Tokyo Police Department, who hides a secret fetish: He has a thing for legs. In fact, while a member of Suitengu's Roppongi Club, Ekoda took the chance to satisfy his feitshes by kidnapping women, holding them hostage and then cutting their legs off before preserving them as trophies, molesting and killing the women himself. His first two victims were his own wife and daughter. Later in the series, Ekoda kidnaps Ginza Hibari and tries to do the same to her before she frees herself. Ekoda is set apart by being a completely human monster and his insane excesses make even the hardened Ginza reevaluate everything she had done to this point.
Mizunokuchi is a sadistic dentist who, as a Euphoric, is granted a multitude of spider-like limbs that he can turn into drills. In the past, Mizunokuchi operated on heroine Kagura when she was due for dental surgery, removing her lower molars while she was still conscious so he could feel her pain. In the present, the dentist takes pleasure in outright tying patients down and simply torturing them to death by drilling through their mouths. He even takes disturbing trophies of the teeth that he carves and polishes afterwards.
Ran Yurigaoka is an esthetician with a thing for tattoos and body art. With his Euphoric powers, he can make his tattoos come to life. Yurigaoka uses them to control other people, playing them as People Puppets for his amusement. His real joy, though, is the Giant Spider tattoo on his back. Yurigaoka uses his fame to find women and uses his powers to give them pleasure, before he paralyzes them by merging the spider with their skin. After this, he has it kill them while they're alive and conscious, but paralyzed the entire time.
Kamiya is a Corrupt Politician who becomes Japan's Prime Minister and schemes to take possession of the Roppongi Club, which caters to every fetish and predilection of the upper classes, away from Big BadAnti-Villain Suitengu, while also gaining control of Kagura for his own purposes. A glutton whose power is to devour anything, before he even achieved these powers, he once drove a couple to suicide over a huge debt, and then took their children to compensate. The son he sold as a child soldier who would one day become Suitengu. The girl, who was only five, he sold as a Sex Slave to be abused and debauched until she was an Empty Shell years later, knowing only how to please men and request money for it.
In Sukeban Deka Reimi qualifies for this status when she and her family orchestrate the deaths of over sixty of the sisters' classmates to make room for the kids of possible financial benefactors for the father, Gozo's, political career. Reimi is quite good at putting on the façade of being the White Sheep, which she uses this to her advantage when she decides to brainwash her students for her personal army. She then gives Ayumi a rigged shotgun, steals all her money, has one of her brainwashed lackeys kill Emi and Gozo, and then laughs about "her poor sisters. During her rooftop battle with Saki, Reimi drops the princess facade and reveals her true Ax-Crazy tendencies as she savages Saki with a whip while screaming at her about her supposedly insane mother.
Aleria from the second OVA of Suisei no Gargantia is, in short, the Big Sister Bully taken to the max and then some. She cares for absolutely nothing but complete social, political, and religious control of her father's fleet and is shown to be willing to do anything to get what she wants. Case in point: when her youngest sister Linaria inherits her father's fleet and converts to a sky-based religion (implied to be a means of escaping Aleria), Aleria orders her other two sisters to hunt down her freighter and kill everyone on board. By the time Kugel arrived, only Linaria was left as a result of Aleria's relentless attack. She later intentionally lures the Hideauze onto the fleet by setting off mines on the seabed in order to publicly shame Kugel and leave the fleet up for grabs. Finally, after both attempts fail, she finds out that Linaria died. Hearing this, she smirks at her own sister's death and tries to usurp the vacant position as high priestess in order to become the leader of the fleet. Villains this bad are very hard to come by in this series, but Aleria takes the cake as the vilest of the bunch.
Dr. Aizawa manages to effectively take a formerly fluffy shounen-ai series like Sukisho and turn it into a tragic angst-fest. He captured the two main characters when they were children and performed experiments on them that were traumatizing enough to cause them to develop split personalities. He then conducted an experiment that involved mind-controlling one of the children (Sora) into abandoning the other one (Sunao), causing Sunao to swear vengeance against his former friend. Also, despite Aizawa's defeat, he was never shown to have perished when his lab burnt down. For all we know, he could still be at large.
Sword Art Online has the main villains of the Alfheim Online and Gun Gale Online arcs:
Suguo Nobuyuki is the director of research and development at RECTO Progress Incorporated, and the one-time fiance of female lead, Asuna Yuuki. He was also completely obsessed with research into the manipulation of human emotion. Following the clearing of Sword Art Online, Suguo trapped three hundred of the surviving players in his own game, Alfheim Online, where he ran experiments on their minds, testing their fear and pain responses. Kidnapping Asuna in the game, he keeps her trapped in a gilded cage at the top of Alfheim's World Tree, while plotting to wed the comatose girl in the real world. When protagonist Kirito reaches the top of the World Tree, Suguo uses his administrator abilities to paralyse him, tortures him, and then sexually assaults Asuna in front of him, gloating the entire time about how, once he's freed, he will rape her again in real life. When the plan fails, he attempts to kill Kirito in the real world, attacking him with a knife. Guilty of attempted murder, torture, trying to rape a teenage girl, and putting three hundred people who had just spent two years fighting for their lives through an additional two months of trauma, Suguo is as bad as SAO's villains get.
Red Eyed XaXa (real name: Shoichi Shinkawa), one of the top three members of the Laughing Coffin Guild in SAO, and the Guild's Master Swordsman. During the Murder Investigation Arc in SAO, XaXa, alongside PoH, and Johnny Black ambushed and attempted to murder players Caynz, Yolko, and Schmitt; when Kirito intervened, the trio also tried to kill him. After making his way back to the real world, XaXa, bored, and seeking a way to kill again, took advantage of his younger brother Kyoji's fragile mental state, to convince Kyoji to create the online persona of Sterben/Death Gun in Gale Gun Online, ultimately hijacking Kyoji's desire to be "the strongest" for his own ends. Using Kyoji, and his old partner Johnny Black as aides, XaXa was able to arrange the murders of players Zekushiido, Usujio Tarako, Pale Rider, and Garret, before sending Kyoji to murder his own crush, Shino Asada. A sadist at heart, XaXa makes a point of crippling his opponents' avatars with a paralysing toxin before delivering the coup de grace, and during his Sword Fight with Kirito in GGO does his best to cut him to ribbons, mocking him the entire time.
Johnny Black (real name: Atsushi Kanemoto), one of the top three members of the Laughing Coffin Guild in SAO. As the Guild's Master Poisoner, Johnny came up with a way to paralyse opponents so that they could then be tortured to death, and puts this poison into effect during his, XaXa, and PoH's attack on the members of the Golden Apple Guild. When discussing what they will do with the captured trio, Johnny expresses a desire to make them fight each other to the death, promising the survivor that he or she will be released; when PoH notes that Johnny will just kill the survivor, Johnny complains about how the Guild Leader has ruined the surprise. He subsequently attempts to poison Kirito when he comes to the Golden Apple trio's rescue. Escaping into the real world, Johnny was recruited by XaXa during the Death Gun murders, poisoning Pale Rider and Garret in their homes, before again making a getaway. He was finally arrested when, after having lain in wait for six months, he attacked Kirito and Asuna on the street, intending to inject them with poison from a syringe, and hospitalising Kirito. Unable to quit killing in the virtual world or the real world, Johnny is the show's definitive Psycho for Hire.
Tears to Tiara's High Priest Drwc. He convinces Riannon to become Arawn's sacrifice by threatening to chop off a little girl's fingers. There's also that whole "I want to summon a demon king to destroy the world so I can rule what's left" thing. Arawn's first Crowning Moment of Awesome is to shank the evil bastard; Riannon gets one when she kicks his undead ass.
Mad Scientist Kagato of the Tenchi Muyo! franchise is an intergalactic researcher who utterly lacks anything resembling conscience. Kagato turned on his mentor, Washu Hakubi, and imprisoned her for thousands of years, hijacking everything she had left behind, including Washu's created 'daughter' Ryoko. Brainwashing Ryoko, Kagato sent her to discover the truth of the 'greatest treasure in the universe,' having her hunt down traces of it...and then destroy the worlds that contained it to make certain nobody else could replicate his discoveries, whether they were inhabited or not. Over 3,000 worlds met their fate this way. After losing Ryoko, Kagato continued the process himself until he discovered her alive on earth. He wastes little time in trying to kill Tenchi and his Unwanted Harem and succeeds in blowing Tenchi apart from his ship. When Ryoko offers her life in place of Tenchi's, Kagato merely responds he'll just kill both of them. When Wahsu is freed, Kagato decides to 'reminisce' about the old days by drawing on his ship's power to destroy the earth. Kagato is defined by his drive for his 'scientific method.' Anything that gets caught in his path is simply collateral damage to that end, no matter what.
Kano from Texhnolyze is a fairly good candidate. Being a product of generations of selective inbreeding and a batshit insane soplipsist who thinks that the entire world is inside his head, it's a bit unclear how far he can be considered responsible for his actions. But driving the city of Lux insane and flooding the streets with murderous cyborg soldiers for ideals that make so little sense that it could just as well be For the Evulz, along with the more personal atrocity of chopping off Ran's head and keeping it artificially alive on a statue to use her as an oracle, puts him deep into this category, if you choose to judge him by his deeds.
For a rather optimistic show, Tiger & Bunny has suprising share of these.
The Big Bad, Albert Maverick, who is a real piece of work - he employed a mysterious criminal organization with advanced technology in return for them providing supervillains to make Hero TV more marketable. When Barnaby's parents found out, he killed Barnaby Sr. and Emily and brainwashed Barnaby to forget the killer's face. He then raised him to be the best of all heroes, to improve the ratings, and when Barnaby found out, he just mindwhipped him again, with the implication that it might have happened before, in a scene looking very much like a date-rape. With Kotetsu on his trial, he has no problem staging a terrorist attack to keep him occupied, brainwashing all his friends to forget his secret identity, killing Barnaby's friend Samantha and Kotetsu's only lead, and framing him for this.
Dr. Rotwang, NEXT-hater who kidnaps all heroes, plants bombs on their necks, and taunts them with a Sadistic Choice - he will blow them up once his android defeats Tiger and Barnaby, but one of them can survive if he or she sacrifices everybody else by detonating their bombs. What's worse is that he is lying - even if one of them pushes the button, everybody will die. And then he does everything to make them turn against each other and is disturbingly excited when one of them almost succumbs to tempation.
Those last two had a Villain Team-Up and managed to out-monster each other - Maverick was clearly disgusted with Rotwang's hate for NEXT. He also has no problem with killing Rotwang once he did his job, right after revealing that he is NEXT himself, just to add insult to the injury.
Kihara Gensei is the patriarch of the Kihara family and a Mad Scientist responsible for nasty experiments on children, which resulted in many of them suffering permanent trauma, so he could create a powerful Level 6 Esper. Gensei has no compunction murdering people in his path in his mad obsession. The first 'sample' of his experiments was his own granddaughter: Gensei overloaded her mind to collect samples from her, and repeated this process on other children as well. Gensei was fond of manipulating his own family members into becoming his test subjects, even though he knew that a massive surge would possibly destroy all of Academy City.
His granddaughter Therestina Lifeline is just as cruel and twisted. Wanting to follow in Gensei's footsteps, Therestina abducted children and put them in comas so she could harvest the samples from their minds. Gensei manipulated the young heroines into providing cover for her, all the while intending to overload the minds of the children she kept under sedation, fully aware this would destroy all of Academy City and not caring as long as she achieved the 'perfection' she hungered for.
Deep Blue of Tokyo Mew Mew. Sure, he's another alter-ego of Aoyama-kun, very much like the Blue Knight, and he looks similar to him, too. But admit it, unlike both of them, he's an absolutely terrible person. He's cold and extremely cruel and is willing to kill anyone who gets in his way with no remorse whatsoever, and he doesn't share their feelings towards Ichigo, nor does he hesitate to hurt her or any of the other Mew Mews, despite Ichigo's refusal to fight against him. He also kills Quiche for getting in his way as a sacrifice for protection of Ichigo, and unleashes beams that threaten to murder the other Mew Mews until Pie sacrifices himself to save them; if it weren't for this Heroic Sacrifice courtesy of Pie himself, Ichigo's teammates would've been slaughtered in a truly horrible way. It all eventually leads up to Deep Blue's Villainous Breakdown as Aoyama-kun fights back against him from within him and eventually forces Ichigo to finish him off and kill both of them in order to free Aoyama, which is a truly satisfying end for this alien menace himself.
Tommyrod is one of the Sous-Chefs of the Bishokukai Organization in the Toriko series. While he puts on a rather Affably Evilfacade with his subordinates he is utterly ruthless and won't hesitate to kill them if failed. His powers use Body Horror insects he keeps inside his body and he doesn't hesitate to sacrifice them, even with high capture levels. He takes sadistic joy in tormenting his opponents, or even bystanders like the unfortunate hunters he encountered in Ice Hell, and his brutal fight with Toriko just shows how much joy he has in inflicting pain on others. Its taken to extremes when he kills Komatsu's baby wall penguin's parents for absolutely no reason, just wanting to enjoy the suffering he inflicted.
Kamishiro from Towa No Quon - ruthless commander in charge of hunting Attractors in Japan (who really is one of them and drains powers of captured Attractors) - proves how bad he is in the final two episodes - he tortures a man for information, sets a mook on fire just to check out his power boost, convinces a group of children under Quon's care and one of his friends to leave with him only to imprison them, probably with an intent of draining them later, and almost kills kidnaped telepath and Quon to reawaken the most powerful Attractor in the world, only to drain him and use his powers to wreck chaos and randomly mutate people for kicks, and is prettysmug.
Count Heinrich von Kinkel from Tsukuyomi: Moon Phase was always a nasty customer, with his habit of sadistically tormenting and trying to murder the majority of the cast. As one of the eldest vampires around, Kinkel believes anything around him is a toy for his amusement or enemy to be destroyed without mercy. It's revealed in flashbacks of his fledgling Elfriede that Kinkel seduced a human woman, drove her insane and returned many years later when the daughter was a teenager. Kinkel turned Elfriede into a vampire before slaughtering the human family who raised her. He then forced her to drink the blood of her best friend, gloating how Elfriede was his slave. When Elfriede was done, Kinkle proceeded to gloat that her pain gave him joy to no end. I Hate You, Vampire Dad doesn't begin to cover it.
The First Friend was responsible for 150,000 deaths by creating a plague and spreading it around the world, also causing widespread death and destruction in order to seize control of the planet and run it with an iron fist where people are sent to nightmarish 'reeducation facilities' or high security prisons just for drawing manga. Friend successfully demonized the heroes and made himself a savior of the world. His whole motivation? Being a massive Attention Whore and egocentric tyrant who wanted to be worshiped by everyone while satisfying a petty grudge against The Hero Kenji
The Second Friend is an Omnicidal ManiacStraw Nihilist who, upon taking over from the first, proceeds to run the world even further into the ground. While the first Friend was a tyrant, the second simply wants to see everything burn. His actions are far more depraved and more and more people are killed under his reign. Even worse, he manufactures a new plague that he sends out with a twist: there is no antidote, only placebos. He simply wants everyone on the planet to die to satisfy his own cruelty.
The First Kferr is the first villain we meet, and is one of the nastiest. A minor frontier lord, Kferr betrayed his home nation to join The Empire of Wischtech and is introduced violently raping a captive girl before he leaves her for his Hellish Horse Xylus, who shares his master's penchant for rape. He also kills a man just for disturbing Xylus later. He also leads his men to Rape, Pillage, and Burn all in their path, planning to rape the women he catches there as well after slaughtering multiple innocent people for no reason.
The Fake Gustav is as brutal as Kferr, using her forces to repress those in her domain and kidnapping children for her experiments. A lover of young boys, she also rapes the hero Koinzell when he falls into her clutches after having obtained him by blackmailing a girl with her brother's life to lure Koinzell in. She then reveals she'd already turned the brother into a horrible abomination, like she has so many other boys.
Vice Admiral Pago, The Dragon to the first of Koinzell's targets of the Seven Heroes. Pago puts on the front of being a decent human being to his gentle sworn brother Geranpen, but uses Geranpen to unknowingly gather women to be experimented on and killed by Pago's lord Schtemwolech, all for his personal profit. When a young elf named Zeppy learns what's happening to the women, Pago murders his parents out of spite, reanimates them and sends them to kill Zeppy. When Geranpen intervens, Pago tries to kill him as well, coldly declaring his brother means nothing to him as he's done using him. After Koinzell drives off Pago by taking his arm, Pago simply makes another by using necromancy to graft two elven maidens to the stump to serve as Combat Tentacles
Regional Count Schtemwolech, Pago's master, and a Mad Scientist obsessed with immortality. he keeps an Amazon Brigade consisting of elven maidens he's used expert Mind Rape powers on to keep them trapped in a state of eternal agony, but unable to disobey him. He conducts experiments on elves to kill them, or turn them into living abominations for his usage, and regularly bleeds elven maidens dry to harvest their blood for his use. When he encounters Koinzell, a man he betrayed and murdered twenty years prior, all he can wonder is how Koinzell has kept himself young.
Hakumen no Kono from Ushio and Tora qualifies as a Complete Monster from the first few chapters of his introduction. He's literally born from hatred and rage from Tora when he was human, thus has no positive qualities. He delights in destroying countries, having done so for thousands of years until 800 years before the story he was hit by the Beast Spear, and Japan's Bakemono and Human population teamed up to defeat him. In response, he holed himself up below Japan...and if he was removed, the entire country would sink. From both Ushio's and Mayuko's families, a Barrier Maiden is chosen to keep him imprisoned...but after 800 years, he got stronger. His worst acts are during the time between the weakening of Ushio's mom's barrier and his awakening. First he sends his Bushin's out to attack the Kohemei Sect and Japan, one of which manipulates an boy named Kirio by becoming his mother figure. Then he uses a special type of demon to systematically wipe out everyone's memories of Ushio and Tora, including Asako and Mayuko. When he awakens he ceases no time whatsoever causing fear and hatred by nuking an entire island'TWICE while Japan sinks.
Hell King Bass is a cold, emotionless Evil Overlord who is not only behind every atrocity that happens in the first 2/3 of the manga, but also personally takes the field to give 3/5ths of the main cast their tragic pasts. The worst thing he has done, though, is killing the greatest champion of humanity and one of his most passionate enemies, Lute, in an incredibly sadistic, spirit-shattering way, then turning Lute's body into a soulless puppet, forced to carry out his atrocities. And this was all done right before the eyes of Lute's mother and comrades. And once said body started breaking down, Bass intended to do the same to Lute's sister.
The Big Bad himself, Great Demon KingChestra, though, tops Bass by far. He is the only villain in the whole manga who is always presented with dead seriousness (even Bass, despite having no funny traits or sense of humor by himself, serves as the butt of a few jokes), invoking nothing but terror (in good guys) and awe (in his minions). To list his evil deeds is to list every scene where he appears and is not busy fighting the heroes, but the most salient example happens, once again, in the backstory. He not only seduced one of the kindest women in the world, Pandora, and pretended to be her loving husband for years, just so she will open the box for him, where his magical power and most of his mazoku minions were sealed, intending to kill and devour her once she outlived her usefulness, he also had children with her, just to make them live traumatic lives and eventually devoured them, after they suffer enough and develop strong enough magic to serve as a powerup, restoring his full abilities. The worst aspect of this? It is implied that, unlike the rest of the mazoku, almost all of whom are firmly stuck in Lack of Empathy and Evil Cannot Comprehend Good territory, Chestra actually felt love for Pandora...and still decided to proceed with the above-outlined plan.
Haguro Dou in Wolf Guy - Wolfen Crest epitomizes the fear of encountering a sociopath, especially a Fatal Attraction -style of obsessive one. For starters he manipulates the younger Kuroda into going Columbine on half the student body. Using weapons from his family gun cellar, the lad wants revenge against Inugami for his older brother's death, which in reality was caused by Haguro pulling the life-support. Haguro keeps going on the same line by beating his far more honorable subordinate Chiba within an inch of his life, biting off his tongue and then raping him for good measure to the point that Chiba ends up dying from a combination of ruptured organs, blood loss and broken ribs( before Inguami bringing Chiba back to life by giving some of his own blood. His reason for this is Chiba ending up encountering Inugami, whose werewolf-form Haguro is Yandere for, out on the streets and talking to him for maybe 15 minutes when Haguro isn't around. Haguro, not relenting or repenting, kidnaps Aiko Aoshika(a teacher who ends up falling in love with Inugami, becoming his Morality Chain). He repeatedly has Aoshika gang-raped by his Yakuza goons(also raping her himself), while recording it for Inugami to see and threatening Inugami through the camera with spreading the videos to the internet, which would ruin what's left of her life. He also gives her a Psycho Serum to make her go even more insane than such experinces already would, making the poor woman enjoy her own torture and rape, which almost destroys her physically and mentally. He does this in hopes of Inugami (who left to Nara due to Haguro's actions) coming back to him. After Aoshika's release from her chains, Haguro tries to kill her, telling her that Inugami is too good for her. Inugami shows up in time to beat him up. During their fight, Haguro slices off two of Inugami's fingers and eats them in an insane attempt to confirm himself as a superior beast to Inugami. Then Haguro slices off four more of Inugami's fingers - and an entire arm. In addition to all this Haguro also commits the SECOND school shooting of the series with an MGL-140, a semi-automatic grenade launcher. The attack hospitalizes Aoshika, who still survives to later identify him as the shooter.
Lord Wolfram, the Villain Protagonist and sadistic guardian of the titular fortress in Wolfsmund. Wolfram makes psychological and physical torture a fun pastime and nobody is able to sneak past him. One of the first things we're told about Wolfram is his execution of a man, who tried to sneak through his fortress, along with the man's entire family. He proceeds to string along people trying to flee the Hapsburg dynasty, letting them have as much hope as he wants before crushing it and destroying them.
Akinari Kato is a tyrannical Daimyo who rules the lands of Aizu in a hedonistic hell where he has girls abducted to serve as slaves and toys for his pleasure before allowing his pet psycho squad, The Seven Spears, to torture them to death. When his vassal, Mondo Hori, rebels to save his daughter from such a fate, Akinari has him and the Hori men tortured to death. Throughout the series, Akinari abuses, tortures and rapes those who fall into his clutches, and when he is so terrified by The Hero Jubei Yagyu's constant hounding him, he makes himself feel better by abducting and violating the innocent daughter of a lord who had the bad fortune to host him for a night. When he finally gets ahold of the surviving Hori women, Akinari sentences them to death by crucifixion and orders it to be made as drawn out as humanly possible.
Uroshido Koshichiro is the leader of the Seven Spears and The Dragon to Akinari. A talented Master Swordsman who serves as an Evil Counterpart to Jubei with equal skill, but none of the honor, virtue or goodness, Koshichiro opens the series dragging the men of Hori before the Hori women and then promptly initiating a slaughter of the women just to hurt the men more. Koshichiro leads the Spears in their disposal of women Akinari is bored with and kidnaps newlywed couples to frame Jubei's ally Princess Sen as a rapist, forcing concubines to rape the men and giving the women to Akinari. While Koshichiro is seen as a Worthy Opponent by Jubei, Jubei makes it clear it is only because he deeply desires to face Koshichiro's skill against his own and makes it clear that he has nothing but hatred and contempt for the man himself.
Yukino from Yakitate!! Japan may not have quite as much killing and mayhem under her belt as some of the other people on the page, but the manga's pretty clear that it's only because she doesn't have the opportunity. She only takes joy in the suffering of others, as exhibited in the chapter where she has Kawachi's bread dough sabotaged, forcing him to try to get it to rise by kneading it so long that he passed out...she was working so hard to restrain so much laughter that she almost soiled herself. Which seems fairly mild compared to the sheer paroxysms of glee she worked herself into by torturing her illegitimate little sister with the desecration of said sister's mother's remains. She's lied, cheated, and killed all so that she can have 100% of her father's company instead of just 90%.
Handsome, charming Dr. Kazutaka Muraki from Yami No Matsuei. As of the start of the series, he's already spent several years systematically kidnapping, dismembering, and vivisecting small children (like Innocent Flower Girl Eileen, whose heart he harvests for her friend, Tsubaki, raping adolescents and infecting them with slow, agonizing fatal diseases (like Hisoka), and seemingly murdering pretty much every grown woman he comes across, whether to use them in scientific experiments to attract the attention of the Shinigami or just for lulz. All of this murder, torture, and rape is really only the means he uses to the end of fashioning a good old Mind Rape, whether it's mentally torturing a girl madly in love with him into developing split personalities (like the aforementioned Tsubaki), mind-controlling suicidally depressed pop stars into becoming blood-drinking monsters (like Maria Wong), or stalking and harassing one of the Shinigami ( Tsuzuki) with so much misdirected guilt that he finally manages to drive him into a catatonic state, in which state he fully intended to vivisect the guy and use his powers to bring his older brother Saki (apparently another CM) back to life, so that he could kill him more slowly and painfully for the murder of their parents.
Yoshiyuki Tomino gives us another despicable villain in Zambot 3, in the form of Killer The Butcher, The Dragon to Big BadGaizock. During the series' run, this guy commits any sort of horrible action, the mildest of which is mass murder of innocent civilians with the excuse of humans being worthless. One ofthe crueler of his deeds is implanting mini-bombs inside unknowing human prisoners, just to release them, let them go back to their families - and only then blow them up. Alive. Even children. All the while, he admires his work, is proud of the bloodshed and jokes about the horrible deaths of his victims, treating his killing sprees as a funny game.