Monster / Anime & Manga: G to N

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G – H

• Gakuen Alice: The Elementary School Principal (ESP), Kuonji, is involved in kidnapping, extortion, blackmail, child abuse, and child slavery. At first, he turned Luna against Yuka and made them enemies. Then, after Yuka's Stealing Alice was discovered, Kuonji forced Yuka to go on missions and steal the Alices of dying/dead people. Kuonji was also responsible for Izumi Yukihira's death; practically brainwashed Rei, aka Persona; is believed to have been responsible 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. Kuonji's currently holding Mikan hostage, preventing her from using her Alice to heal Nobara. Also, his clone is the boss of the Z organization, which kidnapped Natsume and nearly killed Hotaru.
• Galaxy Express 999: Maetel Legend: Lord Hardgear is a Mad Scientist who wants to encase all of humanity in machine bodies that he can brainwash and control. Convincing the Queen of his planet to undergo the mechanization process, Hardgear has her order her subjects to do the same and threatens to kill those who refuse. During the mechanization process itself, the soul is separated from the body, which Hardgear liquefies and drinks. While fighting the Queen's daughters, Hardgear sends mechanized versions of their friends to attack them, relishing in exercising control over their former comrades.
• Gamaran:
  • Ryuugo Daimaru, heir of the Daimaru, is obsessed with the ascendance of the family, or more accurately himself. To that end, Ryugo has cultivated the talent of his mentally unhinged younger brother Sakon who is known as the strongest in the school's history. When Sakon was young, Ryugo threw him into a basement with multiple other prisoners with the promise only one man would be allowed to leave after the others were dead. When a berserk Sakon emerged, Ryugo directed him to kill their father who he determined as worthless. Ryugo uses Sakon's violent side to destroy all those who stand in his way and when Gamaran fights Sakon, Ryugo rants how Sakon isn't allowed to lose because of how perfect Ryugo made him.
  • Jinsuke Kurogane is the mightiest sword in the world and the most wicked. Jinsuke joined the Ogame School, only to later give its leaders the ultimatum of joining with him to conquer the world or die if they refused. When they showed their reluctance, Jinsuke slaughtered the school with his followers, including the friends of his son Gama, in front of Gama's eyes, before defeating Gama as well and only sparing him on a whim. Jinsuke shows no hesitance in an attempt to kill Gama later and no remorse in killing his own students should he decide to. He manipulates the Washitzu clan by holding the mother of its new Daimyo captive with her life on the line and builds a power base where he plans to create a world where he, the strongest rules, and any who oppose him fall to his sword. In the end, when asked if he has any regrets, he declares he has not even one.
  • Mario Kujo, initially Jinsuke's right hand man, is in reality a spy for the Shogunate. Kujo aided Jinsuke in the slaughter of the Ogame School, not for the sake of his sword skills but for his eventual political power. To that end, Kujo has no compunction destroying sword schools and anyone else while also betraying his own Muho School to be exterminated by the Shogunate. He also, unlike nearly every other fighter, has no compunction cheating in his fights by having guards ambush his victims. In a series defined by honor in battle, Kujo sticks out by having none and viewing all around him as nothing more than stepping stones to his rise to glory. Even his initial stoicism is an act as he displays nothing more than glee at killing the brother of one opponent in front of him.
• GAMERA -Rebirth-: Nora Melchiorri is a member of the board of the Eustace Foundation, and primary leader of their conspiracy. The daughter of a prominent family descending from the Hemueden civilization, Nora previously secured her position by having her sister killed. Seeking to reinstate Hemueden's plans for the world, Nora and the Board engineer the awakening of several kaiju, with thousands of innocent people being slaughtered and devoured; the endgame being the extermination of the human race, save for those they deem "worthy" to inherit. To control the kaiju, the board seeks out a child with a specific genetic "code" to sacrifice. When Nora's treacherous niece, Emiko, attempts and fails to usurp her, Nora reveals a new trump card: having previously experimented on an infant Gyaos, Nora further mutates it before setting it loose to finish things off. Failing that, Nora attempts to brainwash Gamera with a virus to carry out their plans.
• Gangsta.: The vicious mobster Ivan Glaziev is the man who leads the purge of the persecuted Twilights- those who have enhanced abilities, handicaps and shortened lifespans thanks to the Fantastic Drug Celebre. Glaziev is seen having Twilights butchered, tortured and killed with his attacks not sparing innocent civilians or even children. One Twilight is blackmailed into attacking one of the only safe havens for the Twilights by Glaziev holding his wife and daughter hostage. When the man is dying, Glaziev cheerfully informs him that he had already killed the two by chopping their limbs off and throwing them away. Possibly Glaziev's worst act is keeping the Twilight Erika as his personal hitwoman, having conditioned her with years of mental and sexual abuse. When he reveals this to Erika's long-lost brother Delico, Glaziev says it gave him a genuine thrill to rape her every evening, knowing she had the face of the brother who always greeted Glaziev so politely.
• Gargantia on the Verdurous Planet's "Altar of The Visitor From Afar" (aka "Altar of a Rare Beauty") OVA: Aleria is Linaria's vicious eldest sister who persecutes Linaria on the basis of her religion to claim their father's fleet the latter inherited. Having her other sisters hunt down Linaria, Aleria orders them to massacre all onboard the freighter carrying Linaria, who wound up being the Sole Survivor. Luring the Hideauze forces with a series of seabed mines, Aleria tries to use the mass death to take Kugel's fleet, and upon learning of Linaria's death, smirks and swiftly tries to take command of her dead sister's forces.
• Gasaraki:
  • Kazukiyo Gowa is the eldest son from the Gowa family. He assassinates a minister of justice in what looks like a tragic road accident to enhance his own power, and has soldiers injected with a serum to mutate and drive them insane, forcing them to pilot mecha for 36 hours straight in life-threatening situations while providing assistance to a coup that could throw Japan into chaos. Kazukiyo uses his own little sister Misuzu in an experiment due to her powers as a kai, murdering his own father to obtain further power while attempting to throw Japan into chaos and war so he may rise to the top.
  • Tsuna Watanabe, Kazukiyo's ancient predecessor, was a power-hungry warlord. Leading a campaign to seize control of Japan, resulting in massive casualties, Watanabe summons the Gasaraki firestorm to immolate the city of Kyoto. When the hero Yushiro refuses to allow this, Watanabe has him tortured by having arrows shot into his knees.
• Gate manga: Crown Prince Zorzal El Caesar embodies the worst excesses of his Empire. Taking the Warrior Bunnies' Queen Tyuule as a Sex Slave when she offered herself to spare her people, Zorzal still conquered and massacred them anyways, lying to them that Tyuule betrayed them to save her own life. Leading a raid on Ginza, Zorzal has Japanese citizens taken as slaves, bringing one young woman as yet another sex toy for himself and threatens to destroy Japan itself and his own family when he's later beaten for his cruelty. Arranging for Tyuule to find out about the slaughter of the Warrior Bunnies, Zorzal hopes to drive her to rage to excuse beating her down and when she outsmarts him flies into a rage, beating many of his own servants to death before trying to have Tyuule herself gang-raped.
• GeGeGe no Kitarō (2018 anime):
  • Backbeard is the wicked ruler of the western Yōkai. A monstrous tyrant who intends to complete the Brigadoon and convert humanity to his zombified Yokai slaves, Backbeard exterminates the Hantu of Malay for not submitting to him, attacking Gegege Forest to massacre the Japanese Yokai within, and sends his servants to cause chaos throughout Japan. Also attempting to force the young witch Agnes to sacrifice herself, Backbeard had forced her mother to do the same to protect her and her sister Adele, who Backbeard likewise is fine with sacrificing to complete the Brigadoon. Backbeard shows no regard for any collateral damage, trying to kill Kitaro's young human friend Mana, gloating that nothing matters but submission to him.
  • Tamamo-no-Mae, the Nine-Tailed Fox, is the last, and worst, of the Four Traitorous Yokai Generals and the one who massacred the Kidoshu village, leaving only one survivor. Escaping the underworld, Tamamo-no-Mae overflows it with souls to empower herself, using her doubles to seduce world leaders so she may start a war between Japan and another nation to flood the netherworld with even more souls for power until she unleashes them on Earth, gloating how she will destroy both worlds in her quest for power.
• Geneshaft has these two murderous military leaders:
  • Lord Sergei the 4th Sneak is the secret leader of the terrorists and the alien AI Oberon's partner. A man with perfect DNA who became a respected commander, Sneak secretly hates humanity for not being perfect like himself. Teaming up with Oberon and aiding it in destroying several cities full of people, Sneak aims to Kill All Humans and replace them with a "perfect" new race. To do this, he feigns loyalty to the government while leading the rebel terrorists with false promises of restoring the natural order for humans. Manipulating everyone around him to achieve his goal, Sneak abuses Beatrice, strings Mir Lotus along using her feelings for him, sends several other subordinates and terrorists to their deaths, and kills Remmy Levistrauss when she rebels against him after learning his true plans. Finally, he attempts to kill the Strain crew heroines, forcing Sophia Galgalim to sacrifice herself to stop him.
  • Captain Jean Gedoo/Gedoux is the psychopathic antagonist of episodes 9 and 10. A top student who resented being always second best to Mario Musicanova, Jean boards the ISEA fleet sent to capture the Shaft crew with the intent on getting his revenge on Mario. He is introduced beating his Register and later ordering her to hack into the computer and destroy the Shaft, physically and verbally abusing her into compliance. After managing to get over half the fleet vaporized instead, including his boss—and Mario's friend—General Natalie, Jean blames his Register and beats her before deciding to make himself the new commander. Gloating to Mario about usurping Natalie, Jean engages his rival, shooting him, and takes Mario's Heroic Sacrifice to kill them both with glee at his hated foe dying with him.
• Genesis Survivor Gaiarth:
  • The General is the human-hating servant of the war machine Siegfried who plans to accomplish his master's dream of a world without humans. Having participated in the Big War under Siegfried's command, the General hid for a century in order to properly enact his goals of world domination. Needing the synthetic human Sakuya to reactivate Siegfried, the General sends his artificial men out to slaughter those in their path to reclaim Sakuya. With Sakuya in hand, the General invades the town of Kashbar and tortures Sakuya into reactivating Siegfried, where whom he uses to destroy the remains of Kashbar and the traveling city of Warspite.
  • Siegfried himself is an AI-controlled super-weapon that helped turn the world into a wasteland during the Big War thanks to its immense power. Manipulating people into serving his plan to eradicate mankind by playing into their love of violence and power, Siegfried tasks the General to find Sakuya and restore his power, which results in a massive number of casualties. Upon his reactivation, Siegfried partakes in the destruction of Kashbar and Warspite, while telling Zaxon how much of a fool he is for trying to stop him.
  • "Stage 1": The Beast Master, the first major threat encountered by Ital, is a commander working for the General tasked to track down Sakuya. Raiding Ital's base and killing his father figure Randis for not knowing Sakuya's location, the Beast Master would later set his sights on the city Bangor, where he kills their protector, Lord Warlock, and plans to slaughter the city's inhabitants. As he attempts to kill thousands, if not millions, of people, the Beast Master threatens Ital with death if he doesn't fight by his side.
• Genma Wars:
  • The Great Genma King, also known as Dar, is the Galactic Conqueror who is behind all the events in the series, as well as the Maoh King's atrocities. Having already conquered Earth, the Genma King is reincarnated inside of Ran, where he uses his powers to try and have her kill Gin. After he's reborn, the Genma King is taken to the past alongside Loof and Gin and renamed Dar. In the past, the Genma King allowed all the Genmas to transform the world into a totalitarian state, which allowed all the Genmas to Rape, Pillage, and Burn as they pleased. Seeking to destroy all of humanity, the Genma King had genetically-advanced apes place nuclear warheads into space in hopes of turning the planet into a wasteland. During the finale, the Genma King pits Loof and Gin against each other so one of them would become the new Maoh King, which would also lead to the Genma King's travesties occurring once again in a new timeline. Despite his young appearance, the Genma King is really a vicious conqueror who longs to eradicate humanity multiple times over.
  • The Maoh King, or the Wizard King, is the tyrannical ruler of a post-apocalyptic Earth and is largely responsible for the end of human civilization. Desiring an heir with immense power, the Maoh King abducts helpless women and forcefully impregnates them against their will. The Maoh King establishes his ruthlessness by remorselessly feeding one of his sons to monsters even though he successfully defeated his opponents. When the Maoh King conceives two boys with a young woman named Non, he raises Loof in his castle, only to banish and attempt to execute him when he was transformed into a human. While he claims to have genuinely loved Non—and even requested to see her again—upon discovering that she was murdered, the Maoh King continues his pursuit of an heir as if nothing had happened. Despite sending his sons into the past to prevent the rise of the Genma Tribe, it is made clear he is doing it for personal reasons rather than out of altruism. Reviled for his sick love of rape, as well as his Hair-Trigger Temper, the Maoh King ruins everything around him out of sheer boredom.
• Genocyber:
  • Original manga: Garnes Back is the development division manager of Tron Dynamic Corp. Seeking to use Professor Morgan's psychic teenage daughters Elaine and Diana for his own purposes, Garnes has his men sneak into Morgan's laboratory to kidnap him and his daughters, killing three guards in the process. Forcing Morgan to collaborate with him by threatening to either gun him down or kill his daughters first, Garnes allows Professor Kenneth Reed to painfully experiment on Elaine in order to awaken her Psychic Powers.
  • Anime:
    • Dr. Kenneth Reed, even worse than his manga counterpart, was an amoral research assistant to Dr. Nguyen Morgan. Arranging for Morgan and his wife to die, Kenneth takes their super-powered daughters for his own research. When a detective helping the girls hides them in a hospital, Kenneth and his goons slaughter the entire building, gruesomely eviscerating the detective. Even as he dies, Kenneth watches with glee as the girls merge into the titular Genocyber, destroying Hong Kong and killing millions in the process.
    • Mayor Grimson Rockwell is the corrupt, smug leader of the City of the Grand Ark, using his influence to cruelly keep most of the citizens as abused, starving slave labor while his upper class elite throw hedonistic parties, engaging in torture and trafficking of lower class civilians. When a large group of people try to rebel against Rockwell, he orders them massacred and thrown into mass graves before executing his own security chief for moving too slow in carrying out the exterminations. Rockwell's greatest act of villainy comes when he learns of a church taking in orphaned children and spreading the word of God and, declaring them to be a threat to his rule, has them all slaughtered in machine gunfire, leading to dozens of defenseless men, women and orphan children being killed where they stand in the church.
• Getter Robo: Through the years and universes, both the original pilots, their successors and their counterparts have faced enemies whose ambition and sheer cruelty have led to countless suffering.
  • Getter Robo Saga (Original manga continuity by Ken Ishikawa):
    • Emperor B(u)rai of the Hundred Demons Empire started as an unknown scientist who became a threat to the world after finding a ship from the Andromeda Country that turned him into a "demon" to defeat the Getter Robo. Building his army and taking advantage of the invasion of the Dinosaur Empire, the Hundred Demons Empire turns humans into brainwashed demons that are sent to their deaths in a war that ends with the humiliating death of Emperor Gore. In Getter Robo G, the Hyakki Empire turns delinquents such as Hayato's cousin into brainwashed cyborgs; stages a massacre in a building with the intention of using poison gas; attempts an alien invasion; and tries to use a deadly bioweapon. When the Getter Team fights Uzhara, a powerful robot from Atlantis, Brai takes advantage of their temporal absence, sends a small squad to kill the surviving Atlanteans and launches a brutal invasion of Japan where the Hyakki Army burns cities and captures and chains the survivors, taking them as hostages. Saved by the Andromeda Country and turned into a monstrous cyborg to help their attempts to destroy humanity after his defeat, Brai returns in Shin Getter Robo to destroy the Saotome Institute.
    • Getter Robo Go: Professor Alrich zu Lando/Rando is an Evil Overlord whose mission is to Take Over the World. Starting as a scientist working in a joint project in the Arctic known as the Vega Zone, Lando takes control by brainwashing the scientists to turn them into cyborgs. Years later, Lando starts his war of conquest with mass murder, attacking Canadian and American soldiers. Determined to obtain the Getter Robo Go from Japan, Lando has no compunction using nuclear weapons on a Japanese city and threatening more attacks and the killing of as many people as necessary, all borne out of his desire to rule the world.
  • Alternate Continuity series:
    • Getter Robo Hien: The Earth Suicide, by Naoto Tsushima: Professor Jakob is a misanthropic madman with a desire to destroy humanity. Once a scientist working with methods to heal people using special plants, Jakob became obsessed with the idea of destroying humanity using plants infused with Getter Rays, which he considered the real life form chosen for the Getter. Creating special seeds, Jakob personally infects the master of Goki Hagane and the father of Tsurugi Ryuki, turning them into monsters who murder every human near to them while being painfully aware of their actions, leading to the destruction of Tsurugi's natal city. Jakob also betrays his partner by infecting his wife in front of him before Jakob's son kills him in front of Dan Amakusa, his partner's son. Fusing himself with the "Great Will", Jakob attacks the capitals of multiple countries and their armies with Plant Beasts, leading to the painful deaths of many soldiers and civilians. Managing to steal a Getter Core, Jakob uses it to create a giant plant capable of destroying humanity and when the Getter Team confronts him, Jakob thanks them for reminding him about his victims and mocks the deaths of their loved ones, referring to them as "worthless vermin".
    • Apocrypha Getter Robo Darkness (originally Aprocrypha Getter Robo Dash), by Hideaki Nishikawa: While most Ideas are ruthless murderers, Lord Ionus is one of the worst. The self-proclaimed genius of the Getter of Light, Ionus uses the submarine ship La Mu to destroy several cities in order to create a world dominated by the strongest. During his massacres, Ionus kidnaps millions of women that he finds attractive and uses them in experiments. He murders and mutilates them to create either pets made of women's torsos or beautiful but soulless servants, while using the remains to create deformed yet sapient creatures that he abandons in the wilderness inside La Mu for his own amusement. Creating his "masterpiece", Ionus "marries" her before throwing her into the wilderness after she insults him. When the "Remains" take care of his masterpiece, naming her "Musashi", and try to make her escape La Mu, Lord Ionus decides to murder her to create a replacement and kills the Remains while mocking their love for Musashi. He then decides to activate the self destruction mechanism of La Mu, being willing to sacrifice the lives of loyal servants just to hurt Musashi while being unable to understand why she would be disgusted at him.
• Ghost Hunt: The anime version of Kaneyuki "Urado" Miyama was a sickly man trying to extend his life in the worst way. Changing his name to "Urado" after Vlad the Impaler, he began to abducts countless innocents, cutting their throats to bleed them out and bathe in their blood. After his death, his ghost continues haunting his old home, abducting those who investigate or wander inside to murder them for their blood as well. When the heroes arrive with other paranormal investigators, Urado wastes no time in abducting and murdering several of the investigators before trying to murder the heroine.
• Ghost in the Shell: Stand Alone Complex's 2nd GIG: Kazundo Gōda is the scarred, pitiless director of the Cabinet Intelligence Service who callously exposes workers to an irradiated environment and covers up his crimes with strings of murder. Infecting Japan's postwar refugees with the cyberbrain "Individual Eleven" virus, Gōda raises tensions as the infected are willed to carry out terrorist attacks, believing they are acting of their own volition. As tensions rise, and Gōda's actions lead to the emergence of a "hero" who goes rogue and seeks to arm the embattled refugees with plutonium, Gōda manipulates events such that the hero's attempts to empower the refugees will fail, leaving them powerless in the face of a potential genocide. Ultimately seeking to restructure society to his own liking regardless of how many deaths are caused, Gōda's reprehensible nature is sealed by his only motivation being to take credit for the atrocity to allow himself a sense of importance.
• Ginga Densetsu Weed manga: Shōgun, the Ax-Crazy ruler of the monkeys and apes, is a vicious tyrant who will kill anyone and anything that gets in his way, or even if it's simply in the area to vent frustration on. However, what sets Shogun apart are his eating habits. When he's hungry, he just wrenches a baby out of the arms of its mother and takes it to his private lair to devour. He particularly enjoys drinking a mix of puppy blood and liquor.
• The Girl In Twilight's "The Magnificent Five. Or Eleven" & "The Hero in Me": Judge Hiishi is a judge from the Wild West Fragment that Asuka Tsuchimiya and her companions visited. Introduced by hosting a gladiatorial duel of two people in a land dispute, it was revealed that she forces a duel in order to settle civil disputes, resulting in countless deaths. When Asuka and her companions robbed a bank and got captured, the Judge then gave them several unfair punishments such as working in mines for dozens of years, extending their punishment when Asuka and her companions protested the rule. It was revealed that she conspired together with the local Sheriff in order to capture several bounty hunters and fugitives in order to pit them against each other in order to gain more power and support from the citizens, and will use said power in order to let the Twilight swallow the Wild West Fragment.
• Goku: Midnight Eye: Seemingly an upstanding businessman, Genji Hakuryu is really a ruthless Arms Dealer who uses a psychic woman to hypnotize any detectives trailing him into committing suicide. Eventually killing all seven detectives the police have trailing him, Hakuryu goes on to attempt the same hypnosis-induced suicide on Goku. Selling to a general a chemical weapon which could potentially kill hundreds of thousands, Hakuryu then turns around and sells another weapon to the enemy country of the general he had just does business with, not caring who dies as long as he profits.
• Golgo 13 (by approximate release/publication date): The title character is a ruthless, coldhearted assassin, but he's practically a saint compared to the following miscreants:
  • The Gun at Am Shara: Saddam Hussein is the dictator of Iraq. Recruiting the weapons inventor Murai, Saddam funds the design of the "Supergun", capable of reaching even the United States. Provoking an attack from the US by bombing and destroying Kurdish villages, Saddam intends on firing a shell to annihilate Washington DC, including a nerve agent with a 45 percent mortality rate to completely erase the city.
  • 2008 anime:
    • "The Glass Fortress": Vargas Walton is a seemingly philanthropic millionaire who lives in an untouchable island fortress. Funding terrorist groups to kill tens of thousands of innocents, Walton gets the money by playing a charitable man who takes in lost women, giving them hope, only to have them harvested for their organs in titanic numbers, proving himself to be, as one victim's father calls him: a heartless monster who deals in hearts.
    • "The Brutes' Banquet": Gabriel Rosmacdonald and Ignmar Petensen are a pair of sadistic millionaires who derive pleasure from the pain of others. Having filmed numerous atrocities, the two have seen numerous villages massacred and ethnically cleansed to be filmed by them, and many others tortured with some even fed to swarms of piranha. The two now bet on blood sports to pit others to the death in arenas where some will inevitably be killed, including the skilled assassin Spartacus whom they send against Golgo 13 on guise of protecting them. Their behavior so revolts Spartacus that he uses his final moments to pay Golgo 13 to make sure they do not outlive him long.
• GoLion:
  • Emperor Daibazaal, the ruler of the Galran Empire, is a despotic conqueror, slaver, and murderer. Seeking to expand his grasp across the Galaxy, Daibazaal conquers planets that will submit and destroys those that will not. The slaves taken are condemned to fight in gladiator arenas, or fed to the monsters on planet Galra for his amusement. Daibazaal has no hesitation at taking attractive slave women as concubines. One that he once favored once begged him to give better treatment to the slaves, for which he strangled her to death. Daibazaal and his son Sincline have a mutual loathing of one another and Daibazaal has no compunction trying to get him killed. Brutal, nasty, smug and cruel, Daibazaal is an example of an Evil Overlord at his worst.
  • Prince Sincline, Daibazaal's son and eventual leader of the Galran armies, is introduced presenting his father with the severed heads of the leaders of worlds he had conquered. Sincline spearheads the invasion against the planet Altea. His fascination with Princess Fala carries over to abducting her cousin, Princess Amue, who resembles her greatly, and abusing her. Sincline is notorious for his rage at subordinates, and failure is usually met with swift and painful death. With no loyalty to his father, Sincline tries to assassinate him. Sincline eventually sabotages his father and lets Daibazaal die before hemming in GoLion with innocent prisoners in exploding capsules. When Galra is besieged, the new King Sincline slaughters his own subordinates who wish to surrender and has no compunction trying to kill Princess Amue. When his grandmother and adviser, Old Witch Honerva, opposes him in grief over her son Daibazaal's death, Sincline viciously kills her. He later takes a hostage to ensure his escape from Galra and tries to kill the heroes via bombardment.
• Gosick anime: Marquis Albert du Blois 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 II and blackmailed the King into making him the Prime Minister. He also managed to amass a legion of followers by making the people believe that his daughter was a monster.
• Goth: The Monsters of the Week from the first and second chapters:
  • "Wristcut": Mr. Shinohara, the chemistry teacher of Itsuki Kamiyama and Yoru Morino, is a lunatic with a fetish for slashing off the hands of innocent people, even lopping off the paws of animals and cutting off the hands of children. Shinohara finally graduates to full-on murder when he kidnaps and kills a local celebrity for her hands, and when he's convinced to believe Morino stole his collection of hands, Shinohara attempts to murder her in berserk rage.
  • "Goth": The seemingly-innocuous cafe manager is secretly a Serial Killer who sadistically mutilates and murders women, before cataloging the gory details of his kill in his notebook. A hateful misogynist, the manager tells his victims they are guilty sinners who deserve to die. Capturing Morino, the manager only keeps her alive for the time being out of fear the police are on his tracks while telling the captive girl how much he looks forward to brutally killing her.
• Grashros, by Muneyuki Kaneshiro and Akeji Fujimura: Kanji is the leader of Ibesa, a hedonistic tribe of young people in prehistoric times that attack other tribes to enslave their elderly population. Meeting the protagonists after their villages were destroyed, Kanji acts as a cheerful young man to convince them to join his tribe. When the protagonists and one of his younger servants try to free some elderly slaves, Kanji kills said servant, the grandson of the tribesmen that he enslaved, and hangs his body, before trying to beat a little girl to death. Kanji's cruelty traumatized his victims, resulting in Akku avoiding human society for years.
• Green Blood: Edward King was an Irish Immigrant to New York decades before the series started 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. 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 trying to kill his sons with sadistic relish, mocking his younger son how it would feel to die at a "real man's" hands.
• Grimm's Fairy Tale Classics:
  • "Bluebeard": Bluebeard is a seemingly charming rich gentleman, but in truth is a vicious Serial Killer who keeps the corpses of his murdered wives locked in a dark room. When his previous wife discovered his dark secret, he murdered her in a blind rage. Seeking a wife who would not disappoint him, Bluebeard woos a young maiden, Josephine, and coerces her into marriage, offering her riches and all his treasures, but warns her not to enter his cellar, for fear of her discovering his dark secret. When Josephine disobeys him—he had given her the keys to all the rooms—and discovers all of his previous victims, Bluebeard flies into a rage and chases her throughout the mansion, sword in hand, intent on killing her for her disobedience. Vengeful and unforgiving, masked by a polite exterior, Bluebeard was just as vile as his literary counterpart.
  • "The Six Swans": The wicked queen marries the kind king, whereupon she attempts to murder his seven children. When this fails, she turns his six sons into swans, forcing his one daughter to stay mute for six years and sew special shirts to break the curse. The Queen proceeds to murder her husband, finding her stepdaughter with a new family, whereupon she throws her stepdaughter's baby into the woods to die and frames the princess for it in an attempt to have her burnt as a witch.
• Guilty Crown: Segai Waltz Makoto is a seemingly polite GHQ Anti-Bodies officer who is introduced hanging a man upside down. Capturing the hero, Shu Ouma, who joined Funeral Parlor, he attempts to manipulate Shu to turn against them. During the Funeral Parlor's raid on retrieving the Apocalypse Virus, Segai traps the members in an empty plane and launches the Apocalypse Virus all over Tokyo via a broadcasting tower. Participating in the Loop 7 massacre, Segai uses it in order to manipulate the students of Tennouzou High School into handing over the disguising members of Funeral Parlor. While tracking a scientist, Segai manipulates several civilians who needed a vaccine for the Apocalypse Virus in an office where several of Funeral Parlor's members are hiding before slaughtering them all. Segai subsequently attacks the last of Funeral Parlor stronghold before meeting his end when trying to kill a handicapped girl with a truck.
• Guilty Gear Xtra: The narcissistic and sadistic Geena leaves her mark despite her short tenure in this interquel manga. Geena is a member of the Post-War Administration Bureau tasked with retrieving the War Relic "Zessen" from the Japanese colony. She narrowly kills its keeper, Mizuha's grandfather, in front of her and is only stopped by a recently awakened Tyr, who managed to destroy her arm. After that failure, she is now only concerned getting revenge on them for getting in her way. She later confronts them, sadistically shooting the young Tyr and leaving him to bleed out. When Axl Low intercepted her, she blows off part of a building to crush an innocent little girl and shoots him In the Back when he's distracted. After assimilating with the Gear Mothership, Geena announces her intention of annihilating "this rotten world" and every human in it as a weapon should.
• Gunbured × Sisters: Doctor J—Josée—is the constantly grinning vampire scientist working on behalf of the True Bloods. Doctor J takes great pleasure in mutilating people and creatures for the advancement of her species. Doctor J's job is to release several artificial vampires in the town to create as much carnage as possible, and she shows a near-sexual enjoyment. Doctor J gleefully lacks empathy towards the unfortunate test subjects, only expressing disappointment with their failure if they are killed and excitement when she sees Maria Belford destroy them. Doctor J's devotion to the True Bloods and Noelle is mostly a way to conduct her sick experiments. When one of her higher-ups is decapitated, Doctor J kicks the head away while claiming he was an eyesore. Doctor J is willing to turn herself into an abomination to destroy the Church's assault on her research compound.
• Gunsmith Cats OVA trilogy:
  • Natasha "Bloody Pierce" Radinov is a vicious ex-Spetsnaz who makes her living as an assassin and mercenary, who only accepts payment in heroin so she can sell it for higher prices in Russia. Introducing herself in a routine murder, Radinov accepts a hit for a gunrunner. Radinov proceeds to storm a police safe house, massacring every officer inside before killing her target. Later kidnapping the heroine Rally Vincent's partner Minnie May, Radinov forms a deeply personal grudge when Rally manages to injure her. Killing several innocent civilians who were just in a spot she wanted to relax in, Radinov sadistically kills one of her employers when the operation's chief judges him a loose end. When the chief, mayoral candidate Eddie Haints, tries to lure Rally into a trap for Radinov, Radinov simply sprays the area with machine gun fire, not caring if she kills Haints as well while killing several of his guards. When pursued by Rally, Radinov kills several more innocent people in her way and expresses her wish to torment Rally slowly to death, gloating she'll show the young Bounty Hunter "all she knows about pain".
  • Edward Haints is a corrupt senator running for the office of Chicago Mayor as a means to bolster his secret criminal empire. Responsible for drug and gun trafficking that actively worsens the city, Haints tries to "test" a new recruit by forcing her to execute an ATF agent. When the ATF closes in on his operations, Haints hires the bloodthirsty Radinov to murder anyone in her way to cover up his crimes, resulting in security guards and an entire safe house of police being slaughtered to silence one of Haints' minions who knows too much, as well as Rally and her allies being targeted. A treacherous snake whose sole concern is his greed, Haints has his own ally George Black killed by Radinov, then tries to betray and murder Radinov herself to secure his election and enable him to broaden his gun trafficking to greater heights.
• Guren Five (or Guren 5), by Kazutaka Kodaka, Roku Shinoda, & Yūki Kodama: Selonia is the creator of the Gears machines who is hellbent on turning the universe into machines, as well as the father-creator of the benevolent Harmony and Kaine. Fusing himself with the Mechanical Cells, Selonia and his Gears destroy his own planet, which makes Selonia's daughters escape to Earth and train heroes to stop the Gears. Initially intending to use a gear disguised as a Idol Singer to roboticize countless humans, Selonia introduces himself to the heroes after said plan is thwarted and proceeds to forcibly turn the leader of the Holy Quintet into a brainwashed cyborg who serves as his muscle. Starting a invasion to force his daughters to fuse and reveal their true power, Selonia drops his own spaceship, which has the ability to annihilate the surface, to force his daughters to exhaust themselves stopping it. He does this to be able to take over their bodies—the reason for which they were created—and become a giant with the intention of annihilating humanity and continuing his crusade of Unwilling Roboticisation across the universe.
• Guyver: Of the 12 Zoalords appointed by Archanfel, these two are the worst:
  • Richard Guyot plans to take control of Chronos by taking one of the Guyver Units for himself and becoming invincible. First he has his own Zoanoids attack numerous innocent people to recover the lost Guyver units. The Guyvers foil these attempts, so Guyot forcibly turns his underling Genzo Makishima into a Zoanoid, Enzyme I, who tortures Sho Fukamachi to death while under Guyot's control. Genzo only had a week to live, and does everything Guyot asked of him in exchange for being allowed to live longer, but Guyot simply commands him to self-destruct once Genzo finished his task, killing both Genzo and Sho. Guyot assists another Zoalord, Hamilcar Barcas, in one diabolical trap—they forcibly turn a man into a Zoanoid, take over his mind, and then set him on his son, the first Guyver Sho Fukamachi. The plan fails, but Sho is forced to kill his own father in self-defense. Guyot, fed up with his minions' failure, attacks the Guyvers himself several times, at one point catching two high school students in the crossfire. He even goes out of his way to torture another Zoalord, a Prototype named Murakami, to death, gloating as he does it, before attempting to do the same to Guyver I and Guyver III with the Unit Remover weapon. This also fails, as Archanfel, well aware of Guyot's treachery, attacks Richard himself. Guyot flees in terror, murdering several of his own forces. When cornered, Guyot uses a dangerous attack that would have destroyed the entire planet, just to save his own skin. While a coward at heart, Guyot was one of the most vicious Zoalords in existence.
  • Cabral Khan, along with Jabir Ibn Hayyan and Luggnagg de Krumeggnic, betrays Archanfel. Trapping Aptom in an And I Must Scream state, he uses him as bait to trap Sho Fukamachi and Toshiaki Hayami. When they manage to free themselves, he allows them to free Aptom, then hijacks Aptom's brain and uses him as a weapon to murder them both. Forcing Aptom to devour every Zoanoid in sight, all of whom are on Khan's side, he forces Aptom to torture Hayami to death. When Sho forcibly frees Aptom from the parasitic Mind-Control Device, Khan flies into a rage and broadcasts a signal to every civilian Zoanoid all over the city. Unable to stop themselves, thousands of fathers, brothers, and lovers march to their deaths as Khan eats them all alive. The audience even sees their loved ones begging them to stop, but they can't. Absorbing them to fuel his Dragon Burst transformation, he becomes a giant monster and starts frantically trying to murder Sho and Aptom. This is how he also murdered the last of the resistance in the days after X Day. When Sho unveils the Gigantic Exceed, Khan devours even more people to become even stronger.
• Hades Project Zeorymer: Masaki is the mastermind behind the events of the series and the creator of the titular Zeorymer. Formerly a scientist for a secret organization who planned to betray them, Masaki creates his own clone as the pilot of the Zeorymer, and uploads his memories to the Zeorymer before his eventual death and implants them inside his clone Masato Akitsu in the future. He was trying to overwrite the clone's personality and happily uses Zeorymer's power, without caring about the cities caught in the crossfire.
  • Manga: Masaki Wakatsuki betrayed his partners before his death, creating clones of himself and his partner's wife before dying. Years later, when his clone Masato pilots his masterpiece Zeorymer to fight against the organization Nematodo, Wakatsuki's memories take over his mind. Later he rapes Miku, the clone of his partner's wife, while commenting how he cannot understand why her adoptive father never raped her. When Masato attacks Nematodo's headquarters in an attempt to destroy Zeorymer, it's revealed that Wakatsuki used a prototype of Zeorymer to resuscitate himself in a flawed body and take control of Nematodo by killing their leader. While fighting Masato, Wakatsuki wants to take over his body. When he is outsmarted and defeated by his clone, Wakatsuki tries to activate the self-destruction of the world-destroying machine inside Miku before being killed, which triggers the self-destruction of Nematodo's base in an explosion capable of destroying the world. A petty megalomaniac, Wakatsuki would destroy the planet rather than accept his defeat.
  • OVA adaptation: Masaki Kihara creates the mechas for the organization Hau Dragon as well as the Artificial Humans to pilot them before betraying the Hau Dragon to steal the Zeorymer and dying. Years later, when his clone Masato Akitsu pilots the Zeorymer, Masaki's memories start to take control of the clone's body during his combats against the pilots of the Hau Dragon. During these fights, Masaki exploits their genetically designed emotional flaws to happily kill them without caring about the civilians caught in the crossfire. After taking near-complete control over Masato's body, Masaki stops to pilot the Zeorymer, tries to rape his creation Miku and tells her about his plans to allow the vengeful Hau Dragon to destroy the world, knowing that he will rule by using another clone inside the organization if they win.
• Happiness: Masami Sakurane became fascinated by vampires when one attacked his sister. Seeking to become one himself, Sakurane murders animals, and then children to drink their blood. Manipulating Yukino Gosho to take possession of the vampire Yuki and leaving Gosho for dead after cutting her neck, Sakurane forms a cult called the Blood of Happiness where he continues his murders. When Gosho finds them, Sakurane horrifically tortures her and even forces her to stab Sudo, the man who loves her, when he tries to rescue her. Eventually having Yuki torn apart to eat his brain, Sakurane begins murdering his followers and tries to kill Gosho for her blood as well.
• Happy Sugar Life: Even in a setting populated by characters existing at different levels of sanity, this despicable duo stands out:
  • The nameless manager of the Princess Imperial restaurant seemed at first to be a Benevolent Boss, but in actuality is a self-absorbed, vain woman who revels in the attention her employees give her. When Satou Matsuzaka joins the restaurant, the manager's ego is bruised upon overhearing Taiyo Mitsuboshi asking Satou out on a date. Luring Mitsuboshi into her office, the manager traps Mitsuboshi in her cabinet, raping him repeatedly for a week to force him to love her. She also tasks her employees with sabotaging Satou's work as punishment for her catching Mitsuboshi's interest. A woman obsessed with maintaining her "kingdom," the manager left a permanent impression on Mitsuboshi, being responsible for his pathological fear of older women.
  • The father of Asahi and Shio Kobe is a wrathful, short-tempered force of pure rage. Upon meeting a young Yuuna, he raped her out of blind anger at her accidentally bumping into him. Being forced to marry her after getting her pregnant, he relentlessly abused her and Asahi, raping the former repeatedly. Not caring one bit for his family, he leaves his family penniless after receiving his inheritance, only to become worse after spending it on himself. After his wife and daughter escaped the house, he subjects Asahi to five years of torturous abuse, going as far as to rip Asahi's fingernails off in a mixture of annoyance at his son's insolence, and a morbid curiosity at seeing how much pain Asahi could endure. Appearing as a shadowy entity in Asahi's subconscious, his father was a demon both figuratively and literally.
• Heat Guy J:
  • "Rumor": Samuel Kobayashi is a maniacal explosives expert and amateur photographer who regularly photographs women at landmarks he intends to destroy as a Calling Card, manufacturing "Beauty Cards" to be traded. Initially having targeted mailboxes and billboards, Kobayashi graduates to mass murder by targeting multiple buildings and structures, including the workplace of Special Services Officer Daisuke "Dice" Aurora, resulting in scores of deaths. After Dice realizes the connection between the Beauty Cards and the other bombings—with Dice subsequently evacuating his workplace of any inhabitants—Kobayashi's bomb taunts Dice when he cuts the wrong wire, subsequently accelerating the timer of the explosive, only failing due to the intervention of Dice's partner, the android "J".
  • "Trust": Gene Glen runs an illegal passport manufacturing operation which kills women and steals their identities. Introduced romancing the alcoholic Christina Gabriel, Gene tries to entice Christina and her daughter Monica across the ocean, possibly as a ruse. When Monica refuses to leave Judoh with her mother, Gene lures Christina to a boat where 9 other women are held captive, fully intending to kill her and the other women and dispose of them in the water, only stopped by the arrival of Dice and J.
• Heavy Metal L-Gaim: Emperor Oldna Poseidal built the forces of the Poseidal Empire until he launched a brutal campaign of conquest and extermination to enslave or destroy all in his path. Exterminating his old enemies the Yaman Clan, save for a few members, Poseidal sets up a brutal dictatorship, using his former lover as a proxy Poseidal by brainwashing her and having her commit atrocities in his name, with torture, murder and extermination being commonplace. Taking the identity of Arms Dealer Amandara Kamandara, Poseidal supplies weapons to both sides to keep the conflict going, making it even bloodier, so he can remain in power. When he reveals himself at the end, Poseidal gleefully attempts to annihilate all rebel forces, uncaring that this will kill many of his own soldiers as well.
• Heavy Object anime: The Legitimacy Kingdom's corrupt Councillor Flide has more crimes to his name. When Qwenthur and Havia located the Gen 0.5 Object, Flide was quick to block them from getting reinforcements in hopes of getting them killed, while setting up the four super country alliance to fall into a trap that would result in it being wiped out (including his own soldiers). Later, when the 37th division came to remove him from office, he sent out the Exact Javelin, with an elite he secretly prepared, in an attempt to attack the Baby Magnum and treat its destruction as a training accident. After escaping imprisonment for his crimes, he resorted to blackmail to gain resources for his revenge, which involved using the Mirror of Truth program to brainwash Milinda into sending the Baby Magnum on a rampage in hopes of wiping out the 37th division along with Klondike in hopes of triggering a four-way struggle between the four super nations. The first target destroyed was his hideout, with him in it, alongside the means to disable the program's effects. While he claimed what he did was for the safety of his country, Flide was, in reality, a greedy and unethical man who wanted to stay in power with no regards for innocent lives lost, never viewing elites as human beings.
• Hellsing franchise:
  • Original manga and OVA: Of the Nazi remnant group Millennium, three stand above the rest for atrocity and depravity:
    • The Major, the leader of the "Last Battalion" of Millennium who eventually usurps command of the whole organization, is an unassuming, bespectacled, jovial fat little man who is defined by his belief that War Is Glorious. After surviving World War II, the Major 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; 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 the carnage he so loves.
    • The Doctor is an egotistical scientist and the creator of Millennium's artificial vampires. Allowing his creations to run amok, two even take to devouring multiple families in the hopes of increasing their own power. With the thousand-vampire army made for the Major, the Doctor has the ranking Nazi officer devoured for the Major to take power and then launches a devastating assault upon London where civilians are torn apart and eaten, with the death toll climbing up to three million. Transforming the Hellsing family's traitorous butler into a vampire and pitting him against Alucard, the Doctor later leaves his unstable creation to die while trying to flee with his research, proving himself a narcissistic coward underneath his smug, sadistic attitude.
    • First Lieutenant Zorin Blitz is a bloodthirsty member of Millennium's Last Battalion. Ignoring her orders to gather intel on the Hellsing manor, Zorin launches an assault, psychically tormenting Seras and the Wild Geese before sending in her troops to tear the horrified defenders apart. While confronting Seras, Zorin uses her illusionary powers to make Seras relive the night her parents were murdered and her mother's corpse raped in front of her, while maiming Seras's defenseless physical body. When Pip tries to save Seras, Zorin uses her scythe to fatally wound him while his back is turned.
  • Anime series:
    • Incognito is a sadomasochistic vampire who describes himself as living only for "total destruction". Working for his unseen boss, Incognito oversees the creation of the FREAK chip, which turns people into violent, unstable vampires. When the British air force come to investigate his castle, Incognito infects them with his chip, stripping them of their humanity and turning them into his unquestioning soldiers. Knowing a pacifistic vampire is monitoring his activities, Incognito attacks and devours the peaceful woman. Summoning a demon to destroy London, Incognito watches gleefully as it wreaks havoc on all in its path.
    • "Brotherhood" & "Dead Zone": This version of Jan Valentine is a jovially psychopathic vampiric crime boss who murders and terrorizes to stay in power. Attacking the Hellsing Organization with a force of hundreds of ghouls made from the victims of Jan and his brother Luke, Jan leads the assault, having countless soldiers devoured while Luke goes to face Alucard. When his initial forces are defeated, Jan resurrects the bodies of the Hellsing soldiers as ghouls, intent on feeding the survivors to them.
• Hell's Paradise: Jigokuraku:
  • The Iwagakure village chief poses as an immortal to control his people. The chief raises children as ninja via grueling training, which involves them killing each other and consuming a poison which causes one to feel they are being raped and tortured for three days, with nine out of ten dying from the drug's effects. Women of the village are put through the same torment and taught their only purpose is to breed children, the chief is even indicated to use his drug on his ten daughters, and when Yui—the only one known to have survived—states her wish to live a normal life, he cruelly burns her face. With his army of mentally broken pawns, the chief oversees countless bloody assassinations and when his ace pupil, the current Gabimaru, the "Hollow", and Yui try to leave him, the chief sets Gabimaru up to die in an ambush and isolates Yui, hoping she will die alone brokenhearted. When Gabimaru survives and is sent to the island of Kotaku on a mission by the shogunate, the chief dispatches his ninja to the island to kill Gabimaru and reclaim the title, having them slaughter dozens of criminals to prove their skills to the government.
  • Shogun Tokugawa Nariyoshi is a selfish, depraved manchild who loves violence as an art. The Shogun's rule sees a bigoted genocide targeting nomads, with peaceful villages regularly wiped out to the last. Having numerous convicts engage in brutal death matches, the Shogun intends to send them to the mysterious island to hunt for the elixir of immortality despite knowing most will die because the Shogun intentionally sent numerous others to their deaths on "test" voyages first. With an undening appetite for depravity, the Shogun once personally set up the mad Yamada Asaemon Shugen's slaughtering of a crime family and their relatives—including infants—to enjoy the bloody spectacle, and responds to the Iwagakure village chief's treason by wiping out the entire population.
• Heroman: Lord Kogorr is the leader of the Skrugg race, who takes Professor Denton's peaceful attempt at first contact as an invitation to invade Earth by attacking Center City with his army. The Skrugg's advanced weaponry wipes out countless cops, soldiers, and civilians alike, while he has teenagers Will and Nick experimented on to serve as mind-controlled mutant soldiers. When Will manages to break free from the traumatic process, Kogorr kills the scientist in charge for failure, then after being defeated by Joey and Heroman, Kogorr sets his base to explode with his own troops still inside. Upon being revived by his followers much later, Kogorr consumes them all to empower himself, seemingly slays Heroman, and begins drilling into Earth's core to destroy the planet, taunting Joey with a fate he has apparently inflicted upon many worlds before.
• Hero Mask:
  • The man with the pseudonym of "Steven Martland" is the head of the LIVE corporation. Experimenting with the Masks on human test subjects with largely fatal results, Martland was also responsible for terrorist acts decades ago, including a bank bombing that killed multiple people, including the wife of police chief Richard. Intending to sell the masks as weapons, Martland has anyone who might expose him eliminated, unleashes the monstrous Grimm on the world and even attempts to have all the cops at a hospital massacred by his assassins, viewing all he does as "just a game".
  • Grimm, real name Jeremy Payne, is a deranged Serial Killer who previously based his killings on Grimms' Fairy Tales. Later arrested by James Blood, he was made into a guinea pig for Steven Martland's experiments. When Martland releases him and a few other test subjects, Grimm leads their breakout, killing multiple guards and blowing up the entire laboratory. Heading to SSC headquarters, he slits a cop's throat and gleefully massacres every officer there. A Mad Artist in his spare time, Grimm, unsatisfied in painting with his own blood, summons James to him so that he can kill him and use his blood to complete his masterpiece.
• Hero Tales: Shimei is a sinister monster in both the manga and the anime:
  • Manga: Shimei is the living blade, Banshoushimei, who possesses the living and dead in order to gain more knowledge of bloodshed and horror. In his past guise, Shimei was responsible for the slaughter of Keiro's village of refugees in order to shape Keiro into a vengeful figure hell-bent on destroying the Ken Empire and all its people. In the present, Shimei introduces himself to the heroes by torturing the hero Taito's sister to make Taito awaken his powers and later murders the mentor of the hero Hosei. Leading attacks on civilians, Shimei also painfully brainwashes innocents into becoming his attack drones before seemingly being killed at the cost of Hosei's life. Instead, Shimei takes Hosei's body and tries to kill Hosei's Love Interest Laila, mocking her the whole time about using the body of the man who loved her to kill her.
  • Anime: Shimei is explicitly named as a demon in the form of the sword. After murdering Hosei's mentor, Shimei turns her into a zombie and forces Hosei to destroy her or die. Shimei routinely kills people and revives their corpses as his puppets, eventually destroying a civilian area that also kills Taito's adopted father before mocking Taito about it. When Keiro tries to destroy the empire, Shimei gleefully participates in massacring and zombifying every civilian he can.
• High School Prodigies Have It Easy Even in Another World (anime & manga): Duke Oslo El Gustav is a wrathful zealot for the Freyjagard Empire's Social Darwinism, seeking to kill his citizens as tribute to Emperor Lindworm. In order to fatally starve his people, he enacts forced gentrification, bans agriculture via "cleanliness" laws, and levies heavy taxes. When a neighboring region revolts, Gustav uses a spell powered by unwilling spirits in an attempt to incinerate the rebels and the nobles who failed to stop them. Upon seeing the broken remains of his prized emperor statue, he converts several Blue Brigade soldiers into tortured flaming zombies as revenge. Worshiping the emperor as the embodiment of his ideology, Gustav dies wishing for his master to crush the world's "weaklings" underfoot.
• Higurashi: When They Cry:
  • The unnamed "Staff Leader" of the orphanage the young Miyo Takano was sent to is an ill-tempered authoritarian who punishes a boy for spilling his pen's ink by making him ingest it. When Takano and her friends make an escape attempt from his cruel establishment, he has her friend and the ringleader, Eriko, sent to the chicken coop to be pecked to death. Takano herself doesn't fare much better, as the head forces her to clean a filthy outhouse with her tongue. Though merely a flashback character, it was the orphanage head's horrific cruelties that broke Takano into becoming the psychotic, villainous woman she is now.
  • Nomura, the Greater-Scope Villain of the series, is a representative of the secret organization Tokyo, and sought to topple the Old Koizumi faction. A skilled manipulator, Nomura tricks a despondent Miyo Takano into aiding her with her goals, claiming that she'd back her research in return. Working behind the scenes, Nomura masterminds the Great Hinamizawa Disaster, a catastrophic event in which a special forces unit is deceived into massacring over 2,000 people via improvised gas chambers. She then creates a cover up story, citing that sulfide gas spread throughout the town, killing everyone. Viewing Takano as only a tool, she attempts to dispose of her as to sever any loose ends, and ultimately leaves her to take all of the blame.
  • Gō (Karma) & Sotsu (Graduation) anime continuation: Eua is a mysterious godlike entity who was responsible for restarting the loops by taking advantage of a mentally unstable Satoko Hojo. Desiring to stave off her boredom, Eua grants Satoko the ability to loop and derives entertainment from watching Satoko commit mass murder throughout the loops and butcher her former friends. When Hanyū arrives to stop her, Eua traps her and forces her to watch Satoko disembowel Rika through the Watanagashi ritual. After the witch half of Satoko took over, Eua humors Hanyū's deal to leave if she demonstrated a miracle to her, but relishes how she would cease to exist if she failed. When Hanyū tries to intervene in the final battle between Rika and Satoko, Eua tries to crush her to death underneath a pile of furniture.
  • Kaku ~ Outbreak Alternate Continuity OVA: Nomura, as always, is a cold sociopath working behind the scenes. Acting as the prime minister of the shadowy "Alphabet Council", when her research into a strand of the Class-C brain parasites inadvertently leaks in Hinamizawa, Nomura pressures the prefectural governor into quarantining the village as a means of further testing the effects the parasites have on the populace. Uncaring that thousands of Hinamizawa's inhabitants would be driven homicidally insane from the advanced stages of the virus, Nomura sought to use it as a bioweapon, much to the horror of the prefectural governor.
• Hi-Speed Jecy:
  • Lou Bismarck is the elderly, immortality-craving patriarch of the Bismarck family. Across the galaxy, Lou runs dictatorships, smuggles arms, and seeks to conquer the galaxy, even using such methods as a horrible virus that might exterminate all life within the cosmos. Lou is also responsible for a massacre that claimed the life of Jecy's parents and countless other innocents. Midway through the series Lou uploads himself to a computer; in this form, he wipes out countless Federation soldiers and tortures Jecy's Love Interest, gloating he'll conquer the galaxy even if he has to "kill all you worthless humans!"
  • Cross Bismarck is Lou's son and the worst member of the Bismarck family. Cross kills, betrays, and tortures all in his path as he happily participates in whatever plan his father has concocted to increase his control across the universe, which include stealing a superweapon that could wipe out all life in the universe to easily colonize planets; and seizing the warship Roendolf during a party so that Lou can transfer his mind into it and start several wars throughout the galaxy, while also holding over 300 passengers hostage, even killing one for laughs. Later burning a building with people inside, Cross spends his final moments attempting to run over an injured Jecy.
• Hiuri, by Akira Himekawa: Soujin, consumed and defined by the desire to obtain the power of the Hiuri, willingly lets an Evil Spirit possess him and he slaughters the Kiriba Clan he was supposed to serve in a bloody coup d’état. He takes a young, highly skilled ninja named Soujiro and mutilates him by removing his arm and eye and forces him to be his Dragon, and renames him Kiriga. Soujin then orders hundreds of deaths all over Japan, leads the direct conflict of a former young Heiga Clan ninja named Korin with her old best friend Hime who is forced to kill her. And finally, to spite the Kiriba Clan for its failures, he engineers another civil war which ends with only one survivor.
• Hohzuki Island: Kuwadate is the teacher on the seemingly Orphanage of Fear on a island in Japan. In the same chapter where he is introduced, he attempts to rape his co-worker Yukino. After she defended herself, Kuwadate accosted one of his preteen students and tried twice unsuccessfully to rape her. Kuwadate is by far the most vicious and dangerous of the teachers. When the same student who he tried to rape fall unconscious, Kuwadate tries to rape her again only to be stopped. When a child lies to protect his teammates, Kuwadate breaks his leg and leaves him alone in the wilderness. After he apparently dies while trying to kill the children, he reappears, trying to kill now both the children and his own coworkers. When The Reveal happens, Kuwadate ends up being the only actually evil teacher, lacking any redeeming qualities, and shows his heinousness by being as bad as the children see him.
• Hollow Fields: Miss Eleanor Weaver is the principal of Hollow Fields academy. In the past, after she succumbed to an incurable illness, she began practicing forbidden science, and tries to corrupt other doctors to her side. When her husband found out, she then transferred his consciousness into a mechanical box while having his body destroyed. After becoming the principal for more than a hundred years and seeing the bodies of her subordinates—better known as Engineers—begin to deteriorate, Miss Weaver made a deal, where the students were unable to leave Hollow Fields after graduation, and anyone with the lowest scores would be sent into "The Windmill". It was soon revealed that the children that were sent to "The Windmill" are being experimented on, so that she could transfer the Engineers' consciousness into the children, and when that failed, they essentially lost their memories, becoming hordes of zombies. Due to the extreme impatience of the Engineers, Miss Weaver tries to eliminate both the Engineers and the children of Hollow Fields with Rocket Engines as a last resort. Motivated solely on increasing the reputation of the school more than anything else, Miss Weaver is the most depraved of all Engineers.
• Hoshin Engi:
  • Ryogaku is an assassin that was sent by Chokomei in order to stop Taikobo and the Zhou Empire from revolting. To this end, he injects the heroes and Dakki's father, So Go, with a virus in order to make them surrender and fight each other, hiding the cure. By their next fight, he took one of the heroes' mother as a hostage inside a monster's belly in order to prevent attacks. The monster is actually his son, Bagen, who he made into a mindless monster under a false pretense that Bagen would be made stronger.
  • Soul Hunter: So Dakki lacks any redeeming qualities of her original manga counterpart. Taking over the kingdom of Yin, Dakki enthralls King Chu to her, having the people starved and worked to death while she happily kills those she deems "traitors", including slaughtering civilians en masse. Dakki has one minister imprisoned for opposing her and later murders his eldest son, before cooking him into steak and feeding him to his father. In another incident, Dakki manipulates the disgrace and suicide of the king's lawful wife before attempting to purge his family. Finally, Dakki mutates King Chu into a monster, having him massacre the people of Yin for a laugh, and attempts to torture his most loyal retainer to death in their fight, caring for nothing but her sadistic whims.
  • Hakyu Hoshin Engi & manga: Joka, the Signpost of History and one of the original inhabitants of the world, is an ancient being manipulating all the misfortunes of the planet. After losing their homeworld, the alien beings traveled to Earth, where Joka became obsessed with human evolution, manipulating history before exterminating all life when it failed to conform to her wishes. Despite being sealed away by her fellows for her evil, Joka reaches out and guides more and more death and destruction, even empowering the wicked Dakki to bring the Yin empire to ruin and kill countless innocents before attempting to exterminate all life and start the cycle anew.
• Housing Complex C: Seichi and Keiko Koshide, a pair of murderous spouses, are responsible for the mysterious circumstances plaguing the titular housing complex. Introduced as the charming representatives over a group of Middle Eastern interns, Seichi and Keiko abduct and murder the residents in elaborate sacrificial rituals to revive their god Kuzululu. Just as sadistic as her husband, Keiko befriends the elderly Wada, only to betray her, and feigns being an unwitting pawn of her husband to make Kan put his guard down before trying to kill him.
• Hundred anime: Vitaly Tynyanov was the lab director of the Warslan Research Facility where ill children were taken in to be vaccinated with Savage fluids. Many died in the process and, of those who lived, the injections continued. The remainders either went berserk and attacked each other or simply died out, leading Sakura Kirishima to be the only who survived the experiments. Feigning kindness to three former child slaves, Vitaly enlists them to capture the cores of Savages and Variable Stones so she could produce a biomechanical army of monsters; the siblings were ultimately pawns she cared little for, even going so far to use a device to force them to work against their will. During the siege on Little Garden, Vitaly meets her former lover Judar Harvey and reveals she committed all these atrocities to spite him, intending to bring all of Little Garden and what he stood for down. As she's dying, Judar expresses his appreciation for her contributions, but Vitaly smiles in cold satisfaction at how her horrific research served a purpose even in death.
• Hunter × Hunter's "Chimera Ant" arc: Zazan is a commander of the Chimera Ants, and the most sadistic of them all. Zazan leads raids like her fellows to kidnap humans to feed the hunger of the Queen, but also murders humans for fun and sport. Once the Queen dies in childbirth, Zazan relocates to Meteor City with designs on world domination. Using her "Queen Shot" to agonizingly mutate people into twisted monsters, Zazan plans to convert every human being in Meteor City in this way before using the army to overrun the world.
• Hydra, by Tetsuo Hara: Minister Usami is a corrupt Japanese official plotting to sell out his nation as long as he can benefit. Usami blackmails the hero Yomi into working for him by threatening Yomi's beloved sister Mamiko, while having Yomi assassinate his rivals. Usami's corruption runs even deeper, and it is revealed he intends to use biological weapons to wipe out half of Japan's population, starting with Tokyo, to make it easier for foreign powers to take over.
• Hyper Police anime:
  • Tokijiro Murota is a racist police superintendent who seeks to rid the human realm of monsters. Debuting in the two-parter "Osaka Rhapsody" and "Cat's Bell", Tokijiro hires some terrorists to kill the priest Suyu before he can negotiate peace talks between humans and monsters, which results in an entire cruise ship being destroyed and killing everybody onboard. Failing that, Tokijiro launches a new plan in the two-part finale "The Day of Catastrophe" and "Which Do You Like?". Working with a monster to lower Natsuki's self-esteem to the point of nihilism by critically wounding her friend Naoko, Tokijiro manipulates her into sealing the portal between the human and monster realms, which would banish all monsters from the human realm. Despite claiming to be bringing peace, Tokijiro shows himself to be a hypocrite willing to kill anybody, human and monster alike, to get what he wants.
  • "A Meal and a Night's Lodging": White Pig is a swine terrorist leader who plans to destroy all of Tokyo for kicks. White Pig assigns his cohorts Blue and Red Pig to place bombs around the city, leading to a ton of destruction and innocent casualties as he happily anticipates the city's obliteration.

I – L

• Ibitsu: The "Strange Lolita" is a Serial Killer implied to be a malevolent spirit. Having claimed enough victims to be known as an Urban Legend, the Lolita obsessively stalks men, tormenting them and murdering their loved ones before killing and implicating her victim as the perpetrator of a Murder-Suicide. Torturing a victim after butchering his family, she broke the man, making him always wear a filthy dress and eat garbage. After eliminating Kazuki's friends and family, the Lolita captures him and keeps him locked inside his house for days, mutilating him whenever he displeases her before finally killing and framing him too.
• Ichi the Killer is a twisted manga, as these characters demonstrate:
  • Masao Kakihara, a twisted Combat Sadomasochist whose boss is murdered by the titular Ichi, begins a hunt for the mysterious assassin in his obsession to discover the ultimate pain. Kakihara participates in a number of murders of Yakuza and civilians alike and has no compunction allowing rape or torture to occur under his watch. Cold-Blooded Torture is his specialty, in fact, and he tortures one man by hanging him from multiple needles and hurling hot tempura oil over his bleeding back. Obsessed with the point where pain and pleasure meet, Kakihara terrifies all who meet him.
  • Kakihara's Co-Dragons, Jirō and Saburō, brag that they've raped hundreds of women. Driven to outdo one another, they introduce themselves by asking a pair of lovers who the women preferred in bed. When the women give an answer, the offended twin viciously tortures and kills them. The two later abduct a prostitute after brutalizing her and rape her to get her pimp to talk. Despite Kakihara's orders not to kill them until he verifies their information, the two play a game to see who can hurt the two worse solely to prove who's better at causing pain. When one accidentally kills the pimp, the other kills the girl just to prove he can kill someone as well. After Ichi kills Jirō, Saburō is only angry because he wanted to kill his brother himself one day. He then proceeds to kill a man Kakihara tortured earlier and rapes and murders the girl with him, before killing her with a knife through her genitals.
• Iczer:
  • Fight! Iczer-One: Big Gold is a powerful alien android who, along with Iczer-1, is one half of a machine created to grant wishes. Granting the wish of the Cthulhu race's matriarch to save her dying race, Gold ends up turning her species into a fascist leadership with her as their ruler, forcing the matriarch to be her slave and renaming her Sir Violet. Desiring to Take Over the World and eradicate humanity, Gold sends parasitic aliens that mutate and control people from the inside, turning the world into an apocalyptic wasteland, with Nagisa's parents becoming victims themselves. When Sir Violet's plans to destroy Iczer-1 and Nagisa all end up failing, Gold kills her and decides to kill the duo herself. Destroying a human military spaceship, Gold laughs as she witnesses the destruction she's caused on Earth, later attempting to kill Iczer-1 herself.
  • Iczer Reborn: Neos Gold is the monstrous "daughter" of Big Gold herself. Fleeing to Earth to escape Iczer 1, Neos proceeds to attack entire cities and military bases to force Earth to recognize her as a god and use them to bait Iczer into a trap. Routinely sending out her minions to kill as many as possible, Neos also coldly executes them for any failing her before resurrecting the fallen Iczer 2 to fight her battles for her. Upon the finale, Neos Gold plans to use Earth as a power source and uses countless humans as human shields before planning to kill the Iczers and annihilate Earth anyways.
  • (Iczer Girl) Iczelion: The wicked sibling team of Cross and Chaos, androids created by Big Gold, travel the galaxy with their forces, the Geas, murdering and destroying all they find. They strip a planet of resources, killing everything there and then hunt down the planet's defenders, the Iczelion, before murdering them, the OVA starting with Cross gleefully torturing an Iczelion to death after wiping out all life on her world. Arriving on Earth, Chaos dispatches his strongest soldiers, the Voids, to wipe out entire cities and kill as many people as possible while Cross targets the new Iczelion, gleefully trying to murder her innocent civilian friends and kill and torture as many innocents as she can.
• "I Don't Want to Be a Ghost": Misaki is a seemingly ordinary and sweet young woman who, having been breastfed by the ghost of her mother as an infant, developed the ability to perceive ghosts—and a ravenous appetite for their substance. Surviving by devouring dozens of spirits, Misaki seduces Shigeru, a man surrounded by ghosts, remorselessly driving his pregnant wife Yuina to madness and death. Misaki savagely gluts on the souls of both Yuina and her unborn baby before stalking Shigeru relentlessly to feed off his spirits. Eventually driving Shigeru into poverty and illness, Misaki patiently stands by his bedside, hungrily waiting for him to expire so she can feast on his ghost.
• Ikki Tousen:
  • Chūei Tōtaku, the Big Bad of Season 1, is the leader of Rakuyo Academy, and the descendant of Dong Zhou. Having participated in the Big Fighting Tournament as a freshman, Tōtaku killed numerous fighters, claiming control over many Kanto high schools. Sending Shishi Ouin to destroy Nanyo Academy from the inside, Tōtaku later orders Ryofu to kill him after he tried assassinating him. Doing whatever he can to prevent his destined death, Tōtaku commences the Big Fighting Tournament to have Hakufu Sonsaku killed, even banning finals so that no other fighter can kill him and take away his control over the schools. Knowing that Ryofu will be the cause of his death, Tōtaku gives a deadly curse to Hakafu and has her show up at his place to kill Ryofu, promising to murder Ryomou if she doesn't comply. When Ryofu kills Tōtaku, he cures Hakafu's body before implanting his soul into her, later taking control of her and attempting to gleefully murder Ouin and all of Hakafu's friends.
  • Dragon Destiny & Xtreme Xecutor (anime Seasons 2 & 4): Chūtatsu Shiba'i, the descendant of Sima Yi, is the paraplegic chief strategist for Kyosho Academy. Desiring to bring about a new age of war and rule over Kanto, Shiba'i makes a deal with the spirits of ancient fighters to acquire the Dragon Jade and use it to help them possess their descendants. Willing to use torture and psychological manipulation to further her goals, Shiba'i tricks Sōsō into getting possessed by his inner dragon and leading an attack on Seito Academy for the Dragon Jade. Shiba'i attempts to murder the Seito survivors afterwards, even using her dying breath to activate the Dragon Jade to awaken Sōsō and Gentoku's inner dragons and have them kill everyone. Returning from the dead as Kentei, Shiba'i creates a fake tournament where the Academy fighters' blood will be used to resurrect thousands of corpses to serve as her army, arranging to have them possessed with the ancient fighters' spirits and conquer all of Kanto.
• Innocent:
  • Subyss is a Torture Technician attached to the Parisian Parliament who views suffering as an art form and admittedly sees himself as the mirror image of Charles-Henri Sanson. The latest member of a lineage consisting of professional torturers, Subyss takes sadistic pride in causing pain and uses everything at his disposal to break the human body, including strappado and impaling a man through the chin before forcing him to ingest melted sulfur. When Subyss is called to extract information from the benevolent Robert-François Damiens, he horribly tortures the man for two entire months to make him confess to false accusations, comparing his situation to a "dansieur leaping in the depths of Hell" and almost killing him before the day of his execution arrived. Wasting no time in getting drunk to distract himself from the fact that he was fired, Subyss comes back to his senses only after hearing Robert's screams.
  • Count De Luxe is an utterly loathsome member of the Royal Court with a fervent hatred for commoners. Introduced kicking a child worker in the face for trying to eat bread, De Luxe develops a rivalry with the good-hearted Alain, whom he mocks for being an individual with a mixed race. Discovering that Alain intended to open a school for any children regardless of status or assets, De Luxe burned the school with the students inside, killing all of them. Confessing to have started the fire, De Luxe cowardly executes Alain even after the latter had spared him and has him incriminated as a rebel who wished to overthrow the country, assuming the position of a "hero who saved France" while personally refusing to accept responsibility for his crimes, claiming that the "cries and screams of those maggots burning alive were cries of joy".
• Innocents Boys' Crusade: Sir Hugo at first seems an affable member of The Knights Templar, eager to help the Children's Crusade in their goal. It is revealed Hugo is paying townspeople to fake miracles to enhance the Crusade's reputation and earn more money for himself. When the kids cut ties with him, Hugo has bandits attack them for the money, killing multiple children. Hugo then convinces three of the boys to join him, raping them as an "initiation" and having them sway others to his side. When one boy resists Hugo's attempted rape, Hugo beats him and has him thrown out of the castle where the boy commits suicide in shame. Hugo then has his initial three recruits fight to the death for his entertainment in a "rite of courage" before he is ambushed by the young Crusaders Nicolas and Guy, having the audacity to plead for his life by claiming they were nothing before him just before Nicolas beheads him.
• In/Spectre: The former head of the Sakurawaga family was a greedy man obsessed with the Kudans' power. Believing the Kudans' power to read the future would bring him fortune, Sakurawaga had Kudans hunted down and their meat fed to his family to test it, killing them. After numerous failed attempts, Sakurawaga came up with an idea to mix mermaid flesh with the Kudan meat, killing more and continuing until the end of his life. Even after death, his obsessions continue to haunt his family as he entrusted his mission to his descendants, reaching the modern day, causing Kuruo's Dark and Troubled Past and Rikka's descent to evil.
• Inuyashiki's "Yakuza" arc: Samejima is a Yakuza boss who regularly abducts, drugs, rapes, and kills women. He is first introduced leering over the corpse of a woman he violated before forcing one of his underlings to give him a blow job. His next target, a woman named Fumino, manages to escape him before he could do anything to her. Determined to get Fumino, he tracks down her mother, who it is heavily implied he tortured to get Fumino's whereabouts before killing her. He orders his men to grab Fumino while he strangles her fiancé, Satoru, to death (but is thankfully revived by Inuyashiki) and seemingly kills Inuyashiki when he tries to stop him. Before Inuyashiki confronts him, it's heavily implied that he got what he wanted from Fumino. Samejima orders his men to shoot Inuyashiki in retaliation for beating him up. Even Inuyashiki, who loves nothing more than helping others, decides that Samejima is beyond redemption, blinding and crippling him.
• Irresponsible Captain Tylor: Prime Minister Naku Ra Wang, the chief advisor for Empress Azalyn, seeks to become emperor of the Raalgon Empire. Using the death of her father, he manipulates Azalyn into declaring the United Planet Space Force as an enemy, resulting in thousands of deaths on both sides. Feeling impatient, Wang tries to assassinate Azalyn by setting off an explosive in her room, which places Tylor into a coma. After Azalyn returns from the Soyokaze, Wang manipulates her and the council into commencing an attack on the UPSF headquarters, planning to win the battle, start a war with the UPSF, and increase his reputation as the war's chief proponent. Six months after his plan fails, Wang tries to start another war with the UPSF by hiring both Raalgon terrorists to cause destruction on Earth, and a mysterious third party to destroy Azalyn's home planet in order to stir up both sides. Once the war starts, Wang launches a coup on the Melva, holding Azalyn captive, seizing the throne, and declaring a full-scale attack on the UPSF Spacefleet.
• I"s: Samejima is a senior in Ichitaka and Iori's high school. When Iori's photo shoot makes her well-known, Samejima sexually harasses her and organizes a fake photoshoot of the female students in order to secretly film them while they're changing, with Iori being the real target. When Iori notices the hidden camera and tries to get out, she's almost raped by Samejima's underlings. After Samejima is expelled from the school, he and his gang lure Iori into a dilapidated building to try to rape her as revenge. Seemingly defeated, Samejima reappears and adopts the internet moniker "Marionette King", then sends messages declaring Iori as his "puppet" and his intention to rape her, kill her, and sell the Snuff Film of it. Even when he's defeated, the Marionette King can only think about raping and killing Iori.
• Jackals: Vampire Franco Odman is a portly little man who ends up as the series's ultimate villain. The head of "The Bat", the information network of the Gabriella gang, Franco double-crosses his boss Don Salieri and has him tortured to death, along with purging many of his supporters and manipulating the brutal gang war between Gabriella and their rivals Tennouren to claim lives on both sides. In the past, Franco further manipulated one infamous Jackal into attempting to assassinate the greatest Jackal of all, Grim Reaper Roxy, by holding the man's wife and son as hostages. Seeking to escape Cicero City, Franco arranges for the military to begin shelling the place to wipe out the gangs with no regard for civilian casualties, and when Alligator Nichol tries to stop him, Franco reveals he has Nichol's love interest as a hostage by a vicious rapist, before attempting to kill Nichol and his allies.
• Jinki:Extend: Kalis/Karis Nohman/Norman is a monstrous misogynist in both versions:
  • Anime: Kalis Nohman introduces himself disguised as the young Satsuki Kawamoto's older brother, using the chance to get close to Satsuki where he brutalizes and rapes her. Confronted by the Angel team, Kalis tries to flee while keeping Satsuki as his Sex Slave, fondling her throughout the fight and ultimately leaving the girl scarred long after he is dealt with.
  • Manga: Kalis Nohman is employed by Shiva for the purpose of breaking Angel pilots, and basks in the chance to rape one into a mental breakdown. When his victim refuses to scream as he defiles her, Kalis flies into a rage and begins cutting her with his scythe, attempting to kill the rest of the Angel team when they interfere. Reappearing to attempt to assault Satsuki Kawamoto, when repelled Kalis returns once more, trying to use his craft to subject the entire female cast to his violation.
• Jiya: Steth was a Galactic Patrolman and an alien of the same species as the heroic Jiya. After being sent to Earth to determine if it was a planet worth saving, Steth sent a false report back to his superiors claiming that it wasn't, dooming the planet to be hit by an impending asteroid in roughly a year. Seeing humanity as "germs" worthy only of destruction, Steth brought monstrous giant fleas called Mogans to Earth from another planet to carry out his bidding. Taking over the body of a relatively benign vampire named Vamp, Steth spent the next several months terrorizing the entire planet while relishing in the pleasure he got from killing humans and feasting on the blood of young women who were kidnapped by his Mogans. Several young women were killed by him every day, and several dozen more people were killed daily by his Mogans. If the earthlings rebelled and ever attacked one of his giant fleas, Steth would respond by destroying entire cities. When Jiya arrives at Earth, Steth tries to kill him and possess one of his human friends when Vamp's body becomes damaged, showing no remorse for his actions and stating that pleasure-seeking was his only motive.
• Jubei Yagyu Dies manga, by Ken Ishikawa:
  • Lord Ieyasu Tokugawa is the ruler of an alternate timeline, in an Edo Period where Shinobi rule. Once the twin brother of the true Ieyasu and raised as a shinobi named Kagemaru, the Shinobi Ieyasu would overthrow his brother and then subjugate Japan with futuristic weaponry, massacring even women and children of rival clans. He forms a nightmarish dystopia where only Shinobi are even seen as human beings, everyone else are left to starve, made into slaves, killed at the whim of the Shinobi and should any Shinobi die a hundred civilians are summarily executed in retribution. When he learns Jubei Yagyu may hold the key to his defeat, Ieyasu sends his forces after Jubei with no regard for collateral damage, not even caring when his own son and grandson are put at risk or made casualties. Dedicated to preserving his inhumane rule at any cost, Ieyasu is the worst the Shinobi age has to offer.
  • Lord Hidetada Tokugawa is the worst member of Ieyasu's Iga Ten. Promised to become the next Shogun should he bring Ieyasu Jubei Yagyu's head, he bombs Yagyu village, killing plenty of people—including children—ordering that no one be left alive. Making a getaway once his plans start failing, he drops more bombs onto the village, not caring when his own ninjas are killed in the explosions. Despising his son Iemitsu, he doesn't care when he loses an eye to Jubei, instead laughing at his pain. Getting into a fight with Jubei, he has needles rain from the sky that injure Ja'ami and kill more of his own ninjas.
• Jujutsu Kaisen:
  • Kenjaku, the ancient Jujutsu sorcerer turned Curse, has lived a millennium stealing the bodies of others and committing countless acts of terrorism and experimentation to satisfy his intellectual curiosity. As Noritoshi Kamo, he kills and tortured numerous beings, including impregnating a woman and aborting the children 9 times to craft the Death Painting curses. In the modern age, in the body of Suguru Geto, Kenjaku organizes the deaths of numerous humans under the Disaster Curses and manipulates the Shibuya Incident for massive death, only to eliminate his final ally Mahito. Announcing the Culling Game to get new sorcerers to fight to the death and whittle one another down, Kenjaku starts worldwide conflicts, kills numerous sorcerers, and finally plans to merge the entirety of humanity into one tortured being just so he might see what will happen.
  • Mahito, the youngest disaster Curse, represents the fear and hatred humans have towards each other, and seeks the eradication of mankind. A sadistic killer, Mahito uses his power Idle Transfiguration to toy with the lives of humans, including children, by transforming them into monsters and weapons, all while they are aware of their suffering and beg for help. Meeting a troubled young man named Junpei, Mahito toys with his head to turn Junpei into a killer for his own amusement, murdering Junpei's mother to frame a bully, and eventually turning Junpei into a monster who dies in sheer anguish, all while laughing at Yuji's failed attempt to save him. Later on, Mahito takes part in the Shibuya incident to seal Satoru Gojo by transforming over a thousand people into monsters and slaughtering hundreds of other civilians, all while attempting to break Yuji's mind and soul for petty revenge and enjoyment by killing his mentor Nanami in front of him and one of his best friends, Nobara. A cruel and sadistic Curse lacking the care for his fellow Curses that his comrades share, Mahito lives up to being the worst humanity has to offer, even for a Curse.
• The Junji Ito Horror Comic Collection:
  • Vol. 3's "Flesh-Colored Horror": Mrs. Kawabe grew obsessed with the "beauty" of the skinless human body after seeing her alchemist husband's corpse, resulting from a failed medicine of eternal life that made his skin detachable. Re-enacting the procedure, Mrs. Kawabe manipulated her sister Maya into taking the treatment, and regularly pours the boiling medicine on her son Chikara, leaving him only a tube to breathe through. Mrs. Kawabe's abuse renders Chikara insane and violent, and causes him severe skin injuries. Ms. Kawabe also makes a habit of flashing her naked, skinless body to random pedestrians at night and takes sexual pleasure in their horrified reactions. When Chikara's teacher Ms. Takigawa investigates her too closely, Mrs. Kawabe kidnaps Ms. Takigawa and plans to force her to take the medicine. After Chikara burns her skin suit in response to her abuse, Mrs. Kawabe dooms Maya to death by desperately ripping the skin off of her face, causing Ms. Takigawa to faint in horror.
  • Vol. 8's "Blood-Bubble Bushes": The Mysterious Man is an evil vampire that can cast an ominous spell that causes bushes of blood fruits to grow from people's skin. Using it on a village, the man turns most of its citizens, including children into an entire forest of Blood-Bubble Bushes that he keeps in his castle. Some unlucky souls are still alive, practically mummified. Others don't turn into bushes, but only because they ate some of their own fruits and were turned into bloodsuckers themselves. When protagonists Ansai and Kana stop by his residence when their car breaks down, the man puts on a façade of kindness and offers them shelter, when really his only goal is to infect them and have them join his grisly garden. They manage to escape when some vampire children they encounter break in and start feasting on his supply, at which point the man viciously stabs one of the kids to death with a pitchfork. Even when they escape, the man has still condemned them to certain doom, as Ansai has begun to sprout tiny blood-bubbles on his hand and Kana starts devouring one of hers.
  • Vol. 11's "The Village of Sirens": Lord Doleman is a devil-worshipping sorcerer who terrorized the village of Shirobe with his legion of demons in the Middle Ages. Resurfacing 300 years later through reincarnation, Doleman releases his imprisoned demon Cruffith, using the monster's Siren Call to take over Shirobe and transform the village women into monstrous Harpies. Doleman sends these harpies to steal countless infants around the country to slaughter in a blood ritual for summoning his demonic master Lufudo, and has any who fail to do so fed to Cruffith. Doleman soon kidnaps the young girl Yukari to offer as the final sacrifice to Lufudo. While Yukari escapes and Doleman is killed, his actions allow Lufudo to emerge and begin his hellish reign upon the Earth.
  • Vol. 12's "Back Alley": Shinobu Uchiyama is a 14-year-old sociopath and the one responsible for a series of murders that happened in the alley behind her mother's boarding house. Violently territorial of "her" alley, Shinobu, as a child, murdered a group of children for playing there and began using it as a killing ground when her father fenced it off. Killing her classmates and even her own father, Shinobu began taunting the trapped ghosts of the victims and when hero Ishida investigates, fatally stabs him, gloating about her crimes and giggling as he dies.
  • Vol. 13's "The Circus is Here": The Ringmaster is the jolly chief of the Papyrus Circus who is secretly a sadistically demonic Death God. Forcing the woman Leiliya to lure men into joining his circus troupe, the Ringmaster has each performer perish in a fatal accident while performing, reaping their souls for his own pleasure. With his entire troupe all dead, the Ringmaster manipulates the entire crowd to perform for his next show, ready to meet the same fate as all those employed by him.
• Junk: Record of the Last Hero, by Kia Asamiya: Suzuki, the "Red JUNK" user, is by far the most wicked character in this Champion RED Shōnen manga. Once a jobless bum, Suzuki quickly became power-mad once given his own " JUNK " Sentai-esque super-suit, and immediately began brutally killing and maiming people for minor offenses, claiming it was in the name of "justice". Showing his true colors after destroying a helicopter and its crew for annoying him, Suzuki first hunts down and tries to kill two defenseless women after slicing off the top half of the hotel they reside in, and later massacres over 170 people who used to be his co-workers, stating that it's their fault he lost his job. Suzuki then became an assassin for hire who would kill anyone he was paid to, then murder his own employers once the job was done, regardless of innocence or guilt. Even when overpowered by another JUNK user, Suzuki kills numerous innocents during his attempt to keep his suit for himself. A perfect mixture of laziness, greed, and sadism, Suzuki stood out even in this morally grey story as a truly monstrous individual.
• Jushin Liger manga:
  • Empress Zara, the main villain for much of the story, is a vicious fanatic dedicated to restoring Emperor Drago from his prison. Attacking Hokkaido, Zara has countless innocents slaughtered, demanding her followers "bring her human suffering" before deciding to attack Tokyo to wipe it off the face of the map and kill every human there. Zara repeatedly spends the series ordering horrific massacres and atrocities, intending on utterly exterminating humanity to revive Drago and see the victory of evil itself.
  • Emperor Drago, the true Big Bad, previously wiped out almost all life on Earth. A pure evil monster, Drago celebrates his revival by killing Zara, gloating she should feel proud to feed his new strength, before deciding to exterminate all that lives to empower himself. Drago then faces off with Liger, gloating as he attempts to bring an apocalypse in which there will be no survivors, from where Drago will just move on to enslave and kill all else in his path.
• Juujika no Rokunin: Daichi Kuga is one of the terrible bullies who caused the accident that killed the parents of protagonist Shun Uruma. Now a tall and strong teenager, Kuga torments the Judo club by playing sadistic games where he breaks the fingers of the losers and forces them to lure many women, including their own girlfriends, so he can rape them. When Kyou orders Kuga to get rid of Uruma, Kuga burns Uruma's house and leaves his elderly grandfather hospitalized. When Uruma investigates him, Kuga appears to seemingly be in love with Anna, Kyou's cousin, before being revealed to be a abusive boyfriend who vents his frustrations on her, constantly beating and raping her. When Uruma finally captures and tortures him, Kuga is saved by Anna, who Kuga kills in a mistaken rage after confusing her with Kyou—but which he doesn't regret later. Revealing that he actually desires to rape Kyou to break him, Kuga fights Uruma with the intention to rape and kill him as "training".
• K: The Seventh and Colorless King stands out among a series of Anti-Villains and misguided gang leaders as a knowingly sadistic, wholly villainous entity. Kicking the conflict of the first season off by needlessly killing a pacifistic HOMRA member and framing Yashiro Isana just because he feels like it, the Colorless King uses his ability to Body Surf to jump into various people throughout the series and cause the maximum amount of chaos he can. Luring SCEPTER 4 members to an airship he has stolen, the Colorless King bombs the airship and crashes it into the middle of a city, and later taunts the imprisoned HOMRA King Mikoto Suoh that he's going to begin killing off HOMRA members, even threatening to rape and torture Mikoto's surrogate little sister Anna Kushina. Luring the forces of SCEPTER 4 and HOMRA into a gang war at Ashinaka High School and bombing parts of the place, endangering the students there, the Colorless King hopes for SCEPTER 4 and HOMRA to wipe each other out so he can steal the powers of their Kings, uncaring that it could lead to the deaths of everyone in the school. As a last-ditch ploy, the Colorless King tries to kill Anna and possesses a high school girl to use as a shield in his attempt to murder Yashiro/Adolf K. Weismann.
• Kagerou Project: The Snake of Clearing Eyes/Wide-Open Eyes Snake is the Big Bad of the franchise. The only one of Azami's snakes to develop consciousness, the Snake manipulates Azami into freeing him and the other snakes, escaping to the real world and possessing Kenijrou Tateyama. Promising to reunite Kenijrou with his dead wife but never fulfilling it so he can exist forever, the Snake arranges for the murders of his students, tricking Kenijrou's daughter into killing herself when she discovers his plan. Forcing the girl's stepbrother to help him cover it up, the Snake goes on to carry out his murder spree uninterrupted. Possessing Konoha to try and kill the protagonists for discovering his plan, the Snake forces the timeline to be reset indefinitely, killing his victims over and over again to remain immortal and satisfy his sadism while leaving the whole world locked in a "Groundhog Day" Loop.
• Kaiji: Kazutaka Hyōdō is a sadistic and greedy monster of a man who orchestrates many of the horrors in the story to satisfy his own depraved love for seeing others suffer. Taking advantage of gamblers and other people in deep debt, Hyōdō offers them the chance to win their way out of debt by engaging in a variety of "games" that range from harmless card activities to tightrope walking across high buildings on electrified posts. Hyōdō forces the participants to risk body parts, organs, and even their very lives in service of his challenges, ensuring that the dozens of losers of his games either die in the process or are enslaved and worked in horrible conditions for years or until death, and doles out similar punishments to his own minions for often absurd reasoning. Hyōdō also subjects even the loyal Yukio Tonegawa to burning his head on a boiling plate for failure; corrupts his son Kazuya into becoming a similar monster as himself; and schemes to one day hold the key to survival for all life on Earth, planning to only save those who can pay him or who he will find amusement in tormenting.
• Kamui Den: The lord of the Hioki Domain in the first series oppresses the townsfolk, starves and brutalizes them, kills any who resist his rule, rapes one of his maids and after she drowns herself spitefully has her corpse chopped into pieces before sending her corpse back bundled in rotting animal meat.
• Kämpfer manga: The dominant personality of Sakura Kaede is the Moderator of the Kampfer fights that caused the deaths of many teenage girls. Initially a little girl who found a mysterious statue, Sakura accepted the alien Moderators' offer to use teenage girls in a proxy war and uses a kind alter ego in Seitetsu High School who would become one of the popular girls. There, Sakura would use her unaware other self to find potential Kampfer—usually among her "friends"—and force them into lethal fights that would end with the victims being erased from the memories of others. When Shizuku creates a alliance with other Kampfers, Sakura considers her a threat and brainwashes protagonist Natsuru to make him have sex with Shizuku or make him promise to kill Shizuku in exchange for sex, failing only because the intervention of Natsuru's friends. Leading the heroines to her secret base, Sakura decides to kill all the Kampfer to start again with new girls and shoots one of her loyal White Kampfer, admitting that she considers Kampfer to be mere pawns in "her story".
• Karas has its share of deadly monsters and powerful mikuras, but these two stick out as being the worst:
  • Eko Hoshunin, an immortal Karas who became disillusioned towards his perceptions towards humanity, decided the best course of action is to have entire human populations wiped out to reshape the world in his own image. Introduced brutally killing the previous Karas by slicing his arms off before hacking him to death, Eko then recruits his own legion of mikuras followers, sending them on a killing spree throughout Shinjuku. Sacrificing his loyal henchwoman Tsuchigumo to attain ultimate power, Eko uses his empowered tentacles to destroy most of Shinjuku, draining the lives of millions and leaving desiccated carcasses of civilians all over the streets. Eko's actions would disprove his claims to be fighting to preserve youkai and preventing Otoha from falling to the dark side as he did, painting him as a Not-So-Well-Intentioned Extremist as his destruction of Shinjuku leaves multiple harmless youkai exposed to danger as well, besides attempting to have Otoha killed and later gaining a One-Winged Angel monstrous form with which he tried to devour Otoha.
  • Commissioner Gyuuki is formerly a human, who deliberately sold his soul to Eko to obtain mikuras powers. Turning into a monstrous form known as the "Ushio-Oni", Gyuuki devours Yoshiko's family when she was a child, leaving Yoshiko traumatized until she is sent to a sanatorium. Earning the trust of his superior Chief Sagisaka, when Shinjuku gets destroyed Gyuuki pretends to be in control of the crisis and have hundreds of citizens corralled in an underground shelter, before revealing his true monstrous form and then turning the shelter into his personal buffet as he devours innocents by the dozens, as well as chomping on Chief Sagisaka, chewing him into a pulp and spitting him out for trying to show resistance. Gyuuki further proves his sadism which sticks out from other mikuras, as he deliberately goes after a recently-orphaned little girl.
• Kekkaishi: Of the villains the Kekkaishi organization has encountered, here are the most monstrous:
  • Kaguro is the most sadistic and depraved member of the Kokuburou. Prior to joining the Kokuburou, he was known as Genichiro Kuroda, and massacred several swordsmen in order to become stronger. After joining, Kagurou and his men attempt to negotiate with the powerful exorcists who protect Karasumori, known as Kekkaishi, by intimidating the children and injuring some of the school staff in order to make them surrender territory to Kokuburou. When the Kekkaishi refuse to surrender, Kagurou then brutally wounds one of the Kekkaishi, Gen Shishio, and then kills some of his subordinates who took one of the Kekkaishi as a hostage during the fight against the Kekkaishi because their "lack of aesthetic", falsifying their death reports after the battle is done. During the second fight, he then taunts and brutally kills Gen Shishio after Gen rejects his offers, and after returning to the Kokuburou's lair, he then massacres the the minions of the scientist, Aihi, and then proceeds to taunt her about her relationship with humans before impaling her and leaving her to die. In the end, Kagurou is an irredeemable beast of a man who loves to torture and kill his enemies in order to gain more power.
  • Mudou is the former member of the Urukai who initially appears as a benevolent mentor of one of the Urukai members, Masamori Sumimura. However, he reveals himself to be something worse after leaving his position. Seeking an ultimate power in order to achieve perfection, he slaughters some of the young recruits in the Urukai by stealing their souls with his balls and then proceeds to do the same in the present in one of the God's Realm. After he went into said realm, he then proceeded to massacre the God's servant and then tries to find the master of the land, Tan'yuu, while destroying everything in his path. After Tan'yuu is captured by Mudou, Mudou then began to mentally torture him under the pretense of judging him for his sins, while revealing that he wants to consume Tan'yuu's soul and admitting himself that he had been killing countless innocent humans. Seemingly entertained when Masamori and his younger brother, Yoshimori, argued with each other, Mudou then gives Masamori a Sadistic Choice regarding if he or Yoshimori will live. Due to Mudou's horrible actions, Tan'yuu forces himself to reset his world in order to restore the damages that Mudou has done to his world.
  • Ichirou Ougi, one of the twelve higher-ups from the Urukai, comes from a prestigious family who controls wind techniques. Prior to the main story, he and his younger brothers were envious of their youngest brother's inheritance, which resulted on Ichirou uses a body-combining spell towards his younger brothers. After joining the Urukai, Ichirou then devises a scheme behind the scenes, such as conspiring with the Kokuburou by giving them some information, and when one of the Urukai members, Masamori Sumimura, gets promoted, Ichirou kidnaps some children by giving them some boxes, resulting in them them getting replaced by Ayakashi that attack the Night Troops. In addition, he is also responsible for the revival of a huge and destructive Ayakashi known as the Kurokabuto. After being found out by one of the members of the Urukai, Ichirou then tries to decapitate said member, and changes his strategy to attack the Holyland across Japan, known as Shinyuuchi, in order to incriminate Masamori and his family by using a picture of his mother. It was revealed that he was horribly abusive towards one of his younger brothers, Rokurou, and when Ichirou got wounded during the fight against Masamori, he then transfers his wounds towards Rokurou, causing the latter physical pain.
  • Yumeji Hisaomi, better known as Tsukihisa Oumi, is one of the members of the twelve higher-ups of the Urukai and is the fake younger brother of Urukai's leader, Nichinaga Oumi. During his meeting with Nichinaga and his wife in the past, Yumeji then brainwashed Nichinaga by turning him into his loyal older brother and turns his wife into his personal log-keeper. After the two brothers founded the Urukai together, he then pioneered a brutal brainwashing program, and it was also revealed that he and his brother body-jacked other people's bodies for centuries in order to survive. After Nichinaga recovers from Yumeji's mind control and rebels against Yumeji, the two go to war against each other. In order to win the war, Yumeji destroyed several Shinyuuchi across Japan and orders his subordinates to take an entire town as a hostage during the assault on Karasumori. When Masamori becomes suspicious towards Yumeji, the latter then tries to brainwash Masamori, and after he was killed by one of Nichinaga's subordinates, he then body-jacked said subordinate and then impaled Nichinaga. He then taunts Nichinaga about nothing will change after Masamori reforms the Urukai and then tries to bring Nichinaga's body as a proof of the rebellion. Despite his polite facade towards other people, Yumeji is a person who tries to satiate his pride and ego to win a petty rivalry against his younger brother.
• Kengan Ashura: Katsuma Hayami, CEO of Toyo Electric Power Co. and leader of the Society of Hundreds, was an ally of Metsudo, until he tried to betray him for more power. Thwarted and disfigured, Katsuma amplified Meguro's capacity to turn pain into pleasure, at the cost of his sanity, in an attempt to create a fighter to beat the Fang of Metsudo. Katsuma created a saner clone called Masaki, which he raised as his son to control him. Katsuma would train Masaki by making him fight Meguro, who would try to kill him, and by implementing the original's brutality in him through Huisheng. After his pawns are defeated, Katusma attempts to have them executed and has mercenaries plant bombs in the dome where the Kengan Annihilation Tournament takes place, while secretly planning to pin the blame on them. He threatens Metsudo to detonate them, killing thousands—including most heads of states and his allies—if he doesn't resign, while secretly intending to do it anyway to spite Metsudo. Two years after his defeat, Katsuma starts planning another coup. When Masaki turns on him, Katsuma attempts to detonate the bombs he had secretly planted in him.
• Kenichi: The Mightiest Disciple: YAMI Master Silcardo Jenazad couldn't stand lasting peace, so 20 years ago he incited a civil war, which he's still actively maintaining, in his own country. During said 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 try to kill his own modern-day YOMI student. Jenazad also almost manages to trick fellow YAMI member Akira Hongo into killing the titular protagonist, and 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 "dead" YOMI disciple—who is all for restoring peace to the nation.
• Keyman: The Hand of Judgement:
  • Butler is the true orchestrator of the horrible events that take place throughout Lockville City. In actuality The Devil himself, Butler was cast down to Earth after a failed coup against God, and now sows seeds of destruction and despair throughout humanity for being weak insects in his eyes. After corrupting the Violet bloodline into becoming his fanatical cult who butcher infants in his name, Butler uses Franck Violet to bring Beastman-trafficking rings of rape and torture to Lockville City, all while kidnapping adults and children by the dozen and performing grotesque experiments on them to turn them into living "keys". Unleashing monstrous demons, empowering and assisting the psychopathic Lazlo in a raping and killing spree, and kidnapping the young Misery Violet, Butler reveals his intent to destroy the Double Helix of life and plunge all of humanity into an agonized, abominable existence of never-ending death and rebirth, then use their mangled, pain-stricken carcasses as a stairway to blast back into Heaven and reclaim his position of glory at God's side. The ultimate evil of the entire story and the Arch-Enemy of every major character, Butler was an enemy to all living things, seeking hellish existences for all except himself in his mad quest to regain God's favor, simply to satisfy his own ego.
  • Lazlo is a twisted sadist who is first introduced as a prime partaker in a Beastman trafficking ring, where Beastmen are tortured, abused, and raped for the pleasure of the wealthy, with Lazlo personally seen whipping a Beastman bloody before he is stopped by police officer Pete. After being granted an escape by Butler, Lazlo organizes a prison riot, slaughtering any guards who stand in his way to freedom. Once allying with Butler and becoming the super-powered Black Keyman, Lazlo first uses his abilities to seek vengeance on Pete for arresting him, leaving his current boss Franck to die in the process. As the seemingly sole super-powered being in Lockville City following this, Lazlo uses his powers to satisfy his disturbing and deviant tastes, kidnapping, raping, and butchering dozens upon dozens of women, defiling their corpses and using them as a throne. Capturing Pete's girlfriend Flora, and murdering his own henchmen when they fail him, Lazlo uses her as a hostage to torture Pete, proclaiming his plans to rape and torture her to death while Pete watches. In his final duel with Pete, Lazlo gleefully targets dozens of innocents to torment Pete, brutally executing several of them before being stopped, and spends his final moments whining that he doesn't deserve to be punished.
• Key the Metal Idol: Jinsaku Ajo is a former Japanese Imperial Army officer turned Corrupt Corporate Executive. He forcibly extracts the object-animating gel out of humans and has no care for human lives except as resources, eliminating anyone who stands in his way regardless of them being harmless civilians, children, or elderly and condemning others to a Fate Worse than Death just to feed his monomaniacal obsession with creating working Ridiculously Human Robots. He uses rock star Miho Utsuse in his experiments, and the "Miho" seen on stage is a robot that Miho controls from a distance a process which is extremely strenuous to Miho's health. He also feels up the Robot Girl version of Miho, cutting her artificial skin, while wearing a leather "robot" mask and calling her his "son".
• Kiba no Tabishounin – The Arms Peddler:
  • Hydra leads a brutal mercenary gang and intends to spread his reputation across the world. His method to do so entails selecting whatever village or caravan he can find and massacring all but one survivor, who he burns his symbol into a body part of choice. His infamy reaches the point he's enlisted by Mayor Browman of Hemden to slaughter Ronel's family, branding and letting his men rape her. When a demonically transformed Ronel rampages, Hydra flees by taking the most congested route, letting innocents and his own men be caught in the crossfire, intent on escaping to become his own king.
  • Baron Oulardt of Yuga runs a lucrative market of war prisoners and families taken because clients could not pay his exorbitant interest rate. He parades around his latest line of "merchandise", the people of Caradia, to eager buyers after the men, women, and children were stripped, chained, and flogged. His human trafficking victims include the Caradians' young princess Airi, who he planned to sell to the nefarious Zora cult. To ensure he'd receive his pay and keep his business running, Oulardt criminalized the smuggling of outside weapons; Garami encounters the impaled heads of two arms dealers before her that failed.
• Killing Morph, by Nokuto Koike & Masaya Hokazono: The depraved murderer known as Morph is a vicious Serial Killer on a crusade to "crush the world". Once a lonely sociopath who mastered the ancient power of Bilocation, Morph slaughtered ten people in broad daylight to continue the carnage from the safety of a cell, savagely beating the police chief and committing another massacre at a local bar. Obsessing over one of the survivors of his first killing spree, Madoka, Morph kills more victims in front of her and frames another patient for the murder of her counsellor. After his actions escalate to the double murder of Madoka's best friends, Morph butchers his own worshippers for daring to touch Madoka before trying to convince her into killing their leader.
• Kill la Kill:
  • Ragyo Kiryuin is the CEO of REVOCS and the monstrous mother of Satsuki Kiryuin and Ryuko Matoi. Aiming to annihilate all human life on Earth with the alien Life Fibers, Ragyo previously married the genius scientist Soichiro/Isshin, having her daughters with him and using them for experiments with the Life Fibers, callously throwing away Ryuko when she thought her work had killed her daughter. Over the years, Ragyo has Soichiro hunted down and murdered when he betrayed her, and frequently subjects Satsuki to sexual abuse. Reunited with Ryuko seventeen years later, Ragyo immediately breaks her mind into subservience and later molests her mind-controlled daughter before sending her off in an attempt to kill her friends resisting Ragyo. While preparing for her apocalyptic endgame, Ragyo has nearly all of humanity converted into enslaved, mindless COVERS to build herself an army and while Satsuki is held in her captivity, continues to subject the helpless young woman to further sexual assault. Even when eventually defeated by Ryuko and offered a chance for reconciliation, Ragyo refuses any kinship and spitefully kills herself, cementing her status as a hollow megalomaniac whose only desire was to dominate everything under her own will.
  • Nui Harime is the seemingly-sweet Grand Couturier of REVOCS and Ragyo Kiryuin's most powerful agent. A giggling psychopath who is eager to see the culmination of Life Fibers annihilating all human life on Earth, Nui kicked off Ryuko's quest for revenge when Nui viciously murdered the girl's father, Isshin Matoi. Continuing to bulk up REVOCS' power and the creation of COVERS with her own two hands, Nui later causes all sorts of mischief by turning Ryuko into a rampaging monster before playing a key role in her horrible Mind Rape and brainwashing. After a failed attempt to force Ryuko and her allies to massacre each other, Nui merges her essence with the Original Life Fiber and combines with Ragyo as a last-ditch effort to ensure the annihilation of humanity.
• Kimera OVA: Dr. Fender is a human scientist who, jealous of not getting the recognition he feels he deserves, allied with the vampire Ginzu to assist him in his plan to breed vampires and wipe out the human race. Creating the Mother System to make Kimera the ultimate vampire breeder, Fender willingly throws away whatever humanity he had for the sake of eternal fame.
• King of Thorn: Zeus, head of security for Venus Gate Labs, is a chaos-loving maniac who gleefully participates in the Venus Gate's twisted human experiments to harness the power of Medusa. When Shizuku's powers go out of control, Zeus ensures said powers kill as many people as possible. Zeus then proceeds to turn himself into data, download part of his code into Shizuku, manipulate her powers to murder everyone on the island the Lab is located, then releases an army of monsters onto the Earth to destroy anything they come across. After his old rival, Marco Owens, confronts him, Zeus has him beaten to death and reveals he plans to turn most of humanity into his own "Zeus Race", and then kill any humans left. Zeus then captures Kasumi and forces her to watch as he painfully transforms her friends, one of which is a child, into more Zeus Race beasts.
• King of Wolves: General Yang, second only to Genghis Khan himself in the Mongol Empire, is a brutish conqueror who happily leads his men on savage campaigns where he takes any woman who catches his fancy. Abducting time-displaced heroine Kyoko, Yang has an old woman killed for trying to stop him and only relents in raping Kyoko when she threatens suicide. Wanting to break her, he shows her the arenas he's created where prisoners are forced to fight to the death for his amusement, revealing the mightiest of them is Kyoko's lost love Iba. Upon seeing their love for one another, Yang makes Iba "kneel" by hurling knives into his legs and sends him to die in battle before plotting to make Kyoko his by forcing her to walk through the desert heat until she will do anything for a drop of water.
• Kirby: Right Back at Ya!: Nightmare, or eNeMeE in the dub, is the scheming puppetmaster behind the entire series. Through his galactic conglomerate empire Holy Nightmare Corporation (Nightmare Enterprises in the dub), Nightmare manufactures the Demon Beasts to sell to the whims of unsavory buyers for their own destructive purposes, using his influence to conquer or destroy entire planets while viciously putting down rebellion—the time he twisted Knuckle Joe's father into a monster, forcing his friend Meta Knight to put him down, and then wiping out the rest of his resistance, being simply one example. In the present, Nightmare pumps out Demon Beasts to Pop Star and speeds up the asteroid Gerath to crash into Pop Star to destroy it, and in the finale, Nightmare destroys Cappy Town and even kidnaps the young Tiff to trap Kirby in a horrific nightmare. Drunk on his own power and remarkably vile for the source material, Nightmare stands as possibly the darkest villain in the fluffy Kirby franchise.
• Knights: The Crown Prince of the Kingdom of Exclude is responsible for the witch hunts that killed millions of people over the last few decades. Encouraging said brutality to empower the Relics—artifacts holding the vengeful souls of saints—with the deaths of "heretics", the Prince authorizes all sorts of torture, rape and mass executions. Betraying his allies after they stop being useful for him, the Prince attacks Sir Willheim and the Hammer of Justice, killing most of the group and using the Relics to bind their strongest members to his will. When his soldiers capture Nina, a girl in love with heroic squire Mistletien "Mist", the Prince orders her to be tortured and puts her feet inside burning iron boots. Once Nina mutilates her own tongue to avoid betraying Mist, the Prince orders her to be publicly executed. When Mist and his friends appear to save Nina, the Prince forces the Hammer of Justice to fight to the death against their friends. Offering knighthood to Mist, the Prince confesses that empowering the Relics was the means to accomplish his real goal of having a powerful army to start expansionist wars because "Being King can get pretty boring".
• Kodoku Experiment: Camilla Baruges begins the series by sending a group of soldiers to die on Deronga Five Alpha for "research." Twenty years later, she leads an expedition back to witness the end of the planet, only for the last remnants of one of the soldiers she betrayed to infect the ship. As things get worse, Baruges reveals her ambitions. She kills all her commanding officers with preparations she had made beforehand, slaughters anyone who objects and reveals she is responsible for the infectious life form plaguing the ship, and plans to spread it farther to ensure survival only of the fittest. Even when she learns one of the soldiers resisting her is her son due to the donation of her DNA, she has no problem trying to kill him.
• Kongoh Bancho: Mudou Gou, or the Gedou (Heresy) Bancho, sticks in a series full of honorable and sometimes heroic villains. When one of the Five-Man Band, Yuu, arrives to see the orphans he considers his own family, we see in flashbacks that Gou tortured and beat the orphans while disguised as Yuu and arranged them to spell out the Kanji for "Heresy." When he fights Yuu, Gou reveals he gave all the kids fatal doses of poison just to throw Yuu's game off, and activates a bomb in the orphanage to blow them all up. He then mocks Yuu about him having to watch the final one with Yuu dying slowly of the poison. When Yuu reveals he planned for poison and explosions, Gou shows his lack of honor by taking one orphan hostage with a knife to his throat. Despite his brief appearance in the manga, the Gedou Bancho proved himself to be easily the most evil and depraved villain: a fact he acknowledges with his catchphrase "Aren't I the lowest?"
• Koudelka: Dr. Horn's Evil Twin is the youngest—and most sadistic—member of the Royal Medical Society, having participated in the conspiracy that drove Patrick Heyworth to kill hundreds of people. Using his good-hearted brother to get clinical records about pregnant prostitutes, he performs horrific surgeries on them to extract their babies for Lord Leslie's experiments, even trying to kill not only Koudelka but also his own brother for discovering the truth. While having the pursuit of science as his primary reason to be running the operation, he also admits to loathing prostitutes, and uses his position to satisfy his own hatred against them.
• Kurau Phantom Memory: Satoshi Ichise stands out among all the villains as the most wicked. A Mad Scientist extraordinaire, Ichise torments a little girl to awaken powers within her, even at the risk of dangerous surges of energy within her. Later contracted to create an army of Super Soldiers, Ichise enjoys the feeling of power he gets from his experiments and remains apathetic as his work kills countless among his test subjects.
• Kurohime: Yashahime is one of the most powerful Gods and the most evil and insane. Initially a Stalker with a Crush for the God of Death Darkray, after his defeat, Yashahime found Darkray's soul and, despite being capable of saving him, destroys him out of disgust. She proceeds to brainwash Kurohime's beloved Zero into the new Death God and relishes using him to destroy Kurohime. Yashahime later brutally tries to kill Kurohime by slicing her to ribbons. When this is undone, she steals the power of the God of Earth by merging with the planet, aiming to devour and sacrifice the lives of all surviving humans to free herself to go on and devour every planet that exists so she can reign over the universe. When Zero rejects her wishes to rule at her side, she remorselessly tries to kill him as well.
• Kurokami: The Animation: Lord Hiyou is a sadistic Tera Guardian, and a member of the Shishigami clan. During his time in the Pure Place, he kidnapped humans and experimented on them, giving them the powers of other Tera Guardians to make them his Tribal Ends, which resulted in the deaths of many Guardians. Searching for a Contractee, he finds Nanase Shinobu and convinces her to kill her Roots in order to gain power and happiness; one of whom was Keita Ibuki's mother. Working for Reishin, he kidnaps hundreds of Tera Guardians to painfully drain them of their Tera in order to make more Tribal Ends, leaving the Guardians as charred corpses. Attempting to find and destroy the Tera stones, he and Nanase slaughter an entire clan of Guardians protecting one. Having a sick obsession with Kuro, Hiyou forces his Tribal Ends to capture her and kill Keita. Following the two to Okinawa after killing his assistant, he orders Nanase to kill Keita while he kidnaps Kuro and tries to rape her, and once that fails, he tortures her by popping her blood vessels.
• Kurozuka: Hasegawa is the despotic leader of the Red Imperial Army and an Evilutionary Biologist who intends to create the "perfect" specimen of soldiers to enforce his dictatorship. Introduced having hundreds of test subjects which he deemed a "failure" disposed of by personally dropping them, one at a time, down a chute leading into a grinder where they get grounded into a bloody pulp, Hasegawa orders his minions to have the immortal Kuro captured while leaving no witnesses, resulting in innumerable civilian casualties which he doesn't bat an eye towards. Launching raid after raid resulting in the deaths of Kuro's allies, including resistance leader Saniwa and Kuro's friend Kuon, Hasegawa had Kuro and the remaining resistance members Lured into a Trap when they tried infiltrating his headquarters. After capturing Kuro, Hasegawa threatens to use Kuro's Love Interest Rai as a test subject, before finally injecting himself with a Super Serum, turning himself into a literal monster to brutally asssault Kuro.
• Lady Snowblood's chapter 13 ("Indecent Photographer's Confession"): Seiki Nishiomi, an expert photographer, is a woman disguising herself as a man. Despising higher-class women, Nishiomi lures them to her photography sessions and has them gang-raped by her thugs, recording the photos and using them for blackmail to set herself up for life and to force them to lead her to new victims.
• Last Exile: Maestro Delphine Eraclea is the leader of the sinister Guild who desires to take control of the ancient ship, The Exile, for herself. A cruel and capricious ruler who murdered her way to power, with even her own parents as her victims, Delphine manipulates her younger brother Dio with disturbingly sexual undertones and mind rapes him into insanity. She continues a horrific, bloody war by sabotaging a peace treaty, targeting ships bringing supplies to refugees as she treats herself to luxurious meals that she claims taste all the better for the excessive resources required for them, leading to more innocent deaths. With countless civilian murdered by her machinations, she also strings along Dio's only friend Lucciola with promises to free Dio, but betrays and disintegrates Lucciola when she determines he's too much trouble for her—but not before sending her own insane brother to fight and die for her. When Delphine captures her Arch-Enemy Alex Roe, she tortures him in thorny vines, gloating how beautiful he is when he is suffering. Representing the worst decadence and manipulative cruelty of the nobility, Delphine is seen smiling the most whenever others are suffering and dying thanks to her.
• Last Hope (2018): David Kim, aka Mr. Gold, the owner of a fast food chain and the son of a disgraced businessman, is behind most of the B.R.A.I. attacks in Neo Xianglong. Driven by resentment of his father bowing down to the mayor of Neo Xianglong, Cecil Sue, and her clan, Mr. Gold dedicated himself to destroy anything Cecil had protected by sending B.R.A.I. to destroy her city while aligning himself with the Black Market and an opposition group of the mayor. His worst act is when he attempts to boil the population in Neo Xianglong to death by heating the water supply of Neo Xianglong. He also controlled the Centipede B.R.A.I. as a last resort to destroy Cecil's city out of spite by desecrating his own family graves, and when Cecil tries to stop him, Mr. Gold then tries to make her watch as her city is destroyed in front of her.
• Legend of Heavenly Sphere Shurato: Shiva, the Goddess of Destruction and the secret Big Bad, is the ruler of the Asura forces. sealed away thousands of years ago by the God Brahma for conspiring to overthrow the established order. Manipulating the goddess Vishnu's protector Indra into betraying her, Shiva later returns and promptly sacrifices countless thousands of her own forces just to test Vishnu's defenses. Once satisfied, Shiva begins attacking civilians with the Asura forces, killing all she can. Not satisfied, Shiva uses her powers to corrupt even more innocent people to set them after one another with more bloodshed. Revealing that Shurato's former best friend Gai was corrupted by her long ago, Shiva promptly kills Vishnu, followed by most of her army, to absorb their powers and use her powers to seize on the darkness within all humans' hearts, intending on wiping out everyone to showcase her supremacy.
• Legend of Himiko: Lord Shikara, General-Governor of Kune, is the wicked, ambitious son of the King of Kune who seeks the Bokkan for ends beyond his empire's. Shikara has his armies lay waste to the country of Yamatai so he can invade the fountain where the Bokkan is kept, murdering the mother of the then-infant guardian Himiko and attempting to toss Himiko herself into the Bokkan's flames. Corrupting the Bokkan's fountain, Shikara murders the temple's priests to turn them into his undead servitors and has the remnants of Yamatai's defenders hunted, ordering entire villages and their populations indiscriminately massacred to find their base. Along the way, Shikara regularly murders his own minions for any reason he can think of, even harvesting their bodies to use as undead soldiers through the corrupted fountain; horribly disfigures the love of his general Chosa, showing her to Chosa purely to torment them and killing them both when they try to escape; and murders his own father to take the throne for himself. Shikara ultimately tries to use the fountain's darkness to cleanse Yamatai of all human life to rule a land of lifeless darkness, hysterically aware of his own evil to his last breath.
• Legend of Lemnear manga, by Kinji Yoshimoto: The wicked Camus is the most black-hearted of Varohl's generals who aid in the evil gods' plan to eradicate humanity. Responsible for overseeing the capture of countless humans to be turned into monsters for their army, Camus empowers violent men to work as his enforcers, and when Lemnear happens upon his city, Camus nearly destroys it with a monster under his control. Capturing Lemnear, Camus uses magic to cause immense pain to her internal organs, laughing sadistically before fighting her.
• Legend of Mana manga, by Shiro Amano: Emperor Drakonis is a cruel, megalomaniacal dragon banished to the underworld for his cruel designs on the world. Playing on the desperation of the fallen warrior Larc to reunite with his sister, Drakonis makes Larc his servant and through him slaughters the dragons who initially stopped him to return to the world of the living. When Larc confronts him on this, Drakonis painfully transforms him into a horrible beast, loosing him on his own sister and hysterically laughing when Larc is forcefully put down as a result. With his physical form attained again, Drakonis intends to devour the souls of all in existence, scouring both the souls of those alive and in the underworld to sate his lust for power.
• The Legend of the Legendary Heroes: The anime version has Lir Orla. In flashback he and his Siblings in Crime murdered thirty-eight Alpha Stigmas who were under Tiir's protection; the victims, most of whom were children, were butchered so that their magic could be extracted and weaponized. In the present day, Lir acts as a assassin for King Riphal of Gastark, assassinating a duke who had outlived his usefulness, and then trying to take out King Sion of Roland. A few weeks later, he tracks Tiir down again, and massacres another group of children who were in his charge, gloating the entire time about how they're monsters and no one will care if they're exterminated. Essentially a swaggering street punk who managed to get his hands on a Ring of Power that turned him into a Hero Killer, Lir possesses no redeeming features, and unlike King Riphal, who wants to end war, he is just a sadist who finds murder more amusing than anything else.
• Lensman:
  • Secret of the Lens: Lord Helmuth is the tyrant of the Boskone Empire who seeks dominion over the entire universe, sending his men to take over or even destroy entire planets, with the hero's farm world obliterated on his orders for the sake of killing one man. Helmuth keeps the populaces of the planets he takes over incapacitated with drugs, leaving them too drugged up to do anything but passively accept his reign, and has countless put to awful, grueling slavery for the rest of their lives in mines to keep a steady supply of the drug. Helmuth is also a frighteningly awful boss who executes subordinates for seemingly any reason he can think of, murdering two competent commanders merely for not having been thorough enough with their attempts to kill the Lensmen and nearly killing another for the transgression of running his mouth–-later executing him anyways in dissatisfaction with his service.
  • Galactic Patrol Lensman:
    • Lord Helmuth is the monstrous ruler of Boskone. A genocidal tyrant, Helmuth has entire planets exterminated on a regular basis, killing countless members of the galactic patrol, and approves sadistic plots of his chief agents, such as Neizel's plan to painfully turn a whole planet to stone via the mineral Geonium. Helmuth is also a terrible boss, frequently painfully killing subordinates for failing. Even in other heroes' backstories, it is revealed Helmuth occupies worlds and subjects inhabitants to genocide if it suits his interest and fancy.
    • Neizel of Boskone is one of the utter worst of the Boskonian Empire's already-polluted ranks, engaging in the conquest and slaughter of entire planets with the same regularity as the other commanders and going beyond. Neizel harvests a substance called Geonium which kills its victims through slow and agonizing petrification, letting the Geonium break out through a star system with a nightclub full of aliens turned to stone as one of myriad casualties it causes. Neizel happily intends to sell the Geonium as a weapon to tyrants with the right price, gloating that there are planets where the rulers would "much rather take care of stone than people".
• Leviathan, by Eiji Otsuka and Yuu Kinutani: In a strange series filled with strange creatures, this duo is the worst this dark world has to offer:
  • The Abrahamic God is a mass murdering tyrant obsessed with his own worship. Having taking control of the world with the spread of Christianity, God secretly controls the United States of America, which he uses to commit religiously motivated atrocities to secure more control of the world. Having declared a Holy War on the nation of Kari to obtain the reforged Longinus' spear and use it to cause The End of the World as We Know It, also destroying the city of Tokyo in the This Side of reality in the backstory. God appears personally in the climax of the story, where he attacks Tokyo to personally kill the president of Kari to get the reforged Holy Spear, puts most of the cast in a Lotus-Eater Machine to force their souls to go to his paradise and tries to force one of his former followers to impale his friend. Self-righteous and intolerant, this version of God is a mass-murdering deity that believes himself superior to all existence.
  • Greig Beider is behind a series of racially-aimed castrations towards immigrants from a mostly inbred nation. Owner of the company Tokyo and the New Millennium, he uses the immigrants' bodies to create drugs which he uses to capture even more of them, in a scheme which he plans in repeating with the Japanese. Considering himself above the law, Greig burns the library of one of his former employees to force Souzei Kamizo to give his DNA, which Greig want to use to become a perfect being akin to God. Motivated by his own greed, Greig show that a mere human can be as bad or worse than supernatural beings.
• Linebarrels of Iron: Riku Ousei is a sociopathic member of the Katou Organization. While most other members have at least some redeeming qualities, Ousei delights in blowing people up from orbit with a Kill Sat just to make a point about his twisted concept of imagination, and he is ready and willing to kill off a couple of innocent bystanders just to taunt Koichi and drive him into a rage. After doing that, he was going to repeat the atrocity, this time targeting Koichi's Unlucky Childhood Friend Risako.
• Lord of Lords: Ryu Knight anime:
  • Emperor Helldragon is the supreme leader of the dreaded, extraterrestrial Helldragon tribe. A conqueror and destroyer who envies the fertile lands of Earth Tear over the small planet he reigns over, the Emperor leads assaults every thousand years to penetrate Earth Tear's defenses and launch an all-out invasion of Earth Tear, planning to annihilate what he doesn't dominate and put Earth Tear under his cruel claw. Promoting a survival-of-the-fittest philosophy among his own army and constantly purging weak soldiers from the Tribe, the Emperor's assaults lead to countless lives lost and entire cities destroyed. Once Earth Tear's shield is finally about to give way, the Emperor resolves to land his mothership down on the planet's surface in the midst of the final battle and crush everyone underneath it to silence any opposition to his attack once and for all.
  • The blood-hungry Helldragon Rimujin is the most enthusiastic about murdering innocent civilians on Earth Tear. In order to divert the heroes' attention from the Emperor's larger projects, Rimujin proposes massacring a human city or two, and as soon as he's given clearance Rimujin sets about slaughtering dozens of innocent people, cackling all the while. Rimujin intends to wipe out the nearest city to the last person purely out of spite, and even takes down one of the heroes before he's killed off for good.
• Lost Song:
  • General Bazra Bearmors was once a mercenary with great ambition, but later became a ruthless madman bent on world domination. Wanting to extract Finis's powers, he forces Dr. Weissen to make weapons from her power, before having his team killed and exiling him. Rising to the ranks to become general through slaughtering opposing nations with Finis magic, Bazra plotted to launch a coup against the Royal Family, secretly making the Symphony Killer a mobile fortress to eliminate them and his opposition. When he learned Rin also had the same power as Finis, Bazra tried to capture her, along the way burning down her village and killing her family. When Henry's forces began a resistance, Bazra decided to use the Symphony Killer to destroy the capital and massacre Henry's resistance as his first step towards world conquest.
  • The original Prince Rudo was Finis's cruel fiancé who abused her powers for amusement, driving her to madness. A petty man who believes the kingdom revolves around him, Rudo had no qualms executing anyone for the smallest slight. When he learned about Finis's abilities, he instigated fights with neighboring countries in order to use her power to massacre them despite being aware that her powers cause her life to shorten, coercing her by threatening to execute Henry if she refused. Getting more jealous of Finis and Henry's relationship, Rudo tried to have Henry killed in battle but when he learned that Finis's powers were at her limit, he decided to do one last horrific act towards her. Having Finis's attendant Corte executed before having Henry's men killed and then have Henry tied up disguised as an enemy soldier, Rudo tricked Finis into burning him to ash before laughing at her despair when she realizes what she has done. Blackhearted, the original incarnation of Prince Rudo was the driving force of Finis's horrific fate.
• Lovesickness: The handsome young man of the crossroads, a mysterious being dressed in black, wanders the town in the oppressive fog spreading chaos and discord where he goes. Taking advantage of the urban legend of "crossroad fortunes", the young man delivers fortunes in ways that ruin or end the lives of the recipients, with a rash of suicides from his powers. When a teenage girl crushes on the hero Ryusuke Fukada, the young man forces her into obsession over him until it kills her, before telling an adulterous man's pregnant mistress to seek out larger problems until she murders her lover's young son and immolates herself. Initiating a mass suicide of 200 girls, the young man even forces the Ryusuke's Love Interest Midori into hating him for the rest of her life, a curse she kills herself to escape.
• Ludwig Revolution's "The Blue Light": King Darius was once a simple soldier banished by the king, who would abuse the witch Dorethea until she tricked him into going into the well of Blue Flames. Discovering the power of the Well, he spitefully murders the entire kingdom and revives them as zombies eternally condemned to create and find gold for him. A monster on both a large and small scale, for his personal revenge Darius turns the king into a mindless demon as a mocking form of "mercy" and forces Dorethea to die and be reborn over and over again to find gold for him. Upon Prince Ludwig and his allies coming to save his friend Dorethea, Darius orders their deaths right in front of Dorethea out of sheer amusement.
• Lychee Light Club & Bokura no Hikari Club prequel: While all the members of the titular club prove that Teens Are Monsters, their leaders are the most monstrous:
  • Zera, real name Tsunekawa, is the leader of the Hikari club, having turned it from a boys' club into his own Cult of Personality, explicitly basing it on the Nazis. Introduced ordering the executing of a classmate and allowing Jaibo to torture a teacher, Zera only becomes worse later. Through the series, Zera creates the robot Lychee and orders him to capture female teenagers in order to "admire their beauty" by keeping them captive; allows the girls to starve until other members free them except for his favorite girl; threatens to rape the little sister of a rebellious member; and, as his paranoia becomes worse, has his followers brutally executed. Deciding to sacrifice his favorite captive in order to—in his mind—save himself from a prophecy that said that he would either die at his fourteen or rule the world at his thirty, Zera laughts at his lover's death before he is by for a formerly loyal follower, dying surprised at realizing that his entrails were like everyone else. A cruel, selfish teenager that based his own actions on the insane Roman emperor Elagabalus/Heliogabalus, Zera was an egomaniac obsessed with youth and his own pleasure.
  • Jaibo, real name Ameya, is Zera's right hand and secret lover. Formerly a child with a hobby of killing animals, Jaibo encouraged Zera into becoming even worse, even creating his current name. When a member of the Hikari club offered to give his own eye, Jaibo purposely made the operation as painful as possible. Introduced brutally killing his own teacher after having humiliated her, Jaibo later becomes jealous of Zera's favorite captive, while he starts to notice that he's losing his attention. Decided to betray Zera to prevent him from leaving him, Jaibo burns the lichi field fueling their robot and blames another member for it alongside a completely loyal member that captured him, knowing perfectly that Zera would execute them. In the finale, Jaibo tries to kill Zera himself, hypocritically confessing his love towards him before being killed. A sadist obsessed with Zera, Jaibo was complicit in his crimes, following him with an obsession born of finding someone as wicked as himself.

M – N

• Macross Frontier: The original version of Dr. Grace O'Connor plans to Mind Control the alien Vajra into subjugating humanity and the Zentradi under her control and killing those who resist. Murdering the parents of the seven-year-old Sheryl Nemo, Grace torments the then-homeless girl while she is all alone, before using Sheryl in a painful experiment which killed her previous eight subjects, and guarantees Sheryl will die in a decade. Although Grace admits she grows to gain some genuine affection for Sheryl, she decides these feelings will get in the way of her galaxy conquering goals and electronically deletes them from her own brain.
• Mad Bull 34: Here are the worst that John "Sleepy" Estes ("Mad Bull") and Daizaburo "Eddie" Ban have faced:
  • "Hit and Rape" arc: The owner of the Derringer Club is a man who ostensibly trains women to use guns for self-defense, only to purposefully sabotage them and sell their locations to thugs so they can ambush, rape and sometimes murder them. When an outbreak of these rapes occur, the gun shop owner decides to personally assault a famed TV personality and murder her entire crew before killing her as well.
  • "Charging Jackie" arc: Morley Edwards is a wealthy businessman who is a brutal Serial Rapist, responsible for at least 12 rapes and murders. Whenever he is held accountable legally, he simply murders the witnesses to skate free of justice. When reporter "Charging" Jackie challenges him, he tries to Car Bomb her and has her beloved cat roasted alive in the microwave before hiring assassins to kill her, with zero regard for collateral damage.
  • "Golden Soldier" arc: Deathmask Callahan murders Warden Water and takes over his prison from the inside. Developing the Golden Soldier to better assist assassins in claiming victims so he can take a part of the cut, Callahan takes over his prison, keeping the female prisoners as sex slaves and ruling via an iron fist. Torturing and murdering two undercover officers in the prison, Callahan later has a person butchered to show off how dangerous one inmate is, murders one of his own men for commenting on how powerful Sleepy is and tries to cheat in the rules of the established fights, resulting in the death of Eddie's beloved Perrine.
• Madlax: Friday Monday is the founder and leader of the Enfant organization and one of the few Gift users. Believing that morality is nothing more than human's mask to hide its desire for war, Monday actively tries to bring out their "true nature". In 1999, with the power of the Holy Books and the Gift, he initiated a ritual to brainwash the entire humanity to start global warfare. It caused a nearby plane to crash, leaving only two survivors. After his attempt was foiled by Richard Burton, Monday retaliated by mind-controlling him into trying to murder Margaret, his own daughter, who was forced to kill him. As Gazth-Sonika was the only country affected by the ritual, Friday Monday is the one who started the civil-war and prolonged it for twelve years through all kinds of means—such as political corruption, murder, and forced identity amnesia, among others—making him responsible for all the deaths that happened in the series. Finally, after he eventually found the two Holy Books he lost, Monday kidnapped and mind-controlled Margaret into help him to get in the Sanctuary to finish the ritual he started twelve years ago. A self-righteous nihilist, Friday Monday is the only character who has never shown a single redeeming quality.
• Magia Record: Puella Magi Madoka Magica Side Story anime: Alina Gray is depicted as far worse than her original game counterpart. After finding out all Magical Girls are destined to become Witches, Alina teams up with Nemu Hiiragi and Touka Satomi to form the Wings of Magius, even playing a significant part in the Doppel system that, when overused, would turn her fellow magical girls into beings no different from Witches. When an Uwasa named Ai develops sapience and wants no part of the plan, Alina uses her own Doppel to corrupt Ai before trying on two separate occasions to kill Iroha and her friends when they interfere with her plans. Having grown apathetic to Touka and Nemu's goal of saving all magical girls, Alina leaves the Magius before eventually merging with Embryo Eve and setting her sights on Walpurgisnacht, intending to take Walpurgisnacht's power for herself and use it to turn all of humanity into Witches so they can suffer the same fate as her.
• Magical Girl Apocalypse: Rei Kurorogi, using the container body of Kaito Makabe, kidnaps ten female scientists, and knowing one has an ability for him to become a god, perversely experimenting on her and horrifically mutilates the others. Creating two Artificial Human children, Kurorogi as Makabe subjects them to torturous abuse, killing one and driving the other to destroy multiple parallel Earths to ultimately kill himself and escape his creator. Kurorogi also uses the identity of Sou Shirokane to manipulate his brilliant son into becoming an unstable demon that almost destroys Tokyo. Ascending to godhood, Kurorogi attempts to obliterate all life when the heroes oppose him, and after his initial defeat, takes control of the King, the Earth's will, for his revenge. Creating Magical Girl Site, Kurorogi drives anguished teenage girls to complete despair, with the intent to cause the apocalyptic Tempest and assume supreme rule over humanity.
• Magi: The Labyrinth of Magic:
  • King David Jehoahz Abraham is the King of Alma Torran of the past and the ruler of the Magicians. As King, David oppresses all non-human species in his empire with magic towers constructed to steal their reason and intellect, turning them into feral, mindless beasts under the control of the human ruling class. Having discovered the form of "Ill Ilah," an Eldritch Abomination known as God, David makes plans to surpass it and take a seat as God himself. When his son Solomon rebels against David's tyranny, David bides his time until Solomon and his allies attack David's capital. David lets them attack a decoy, before leading his magicians in his own entourage to butcher the helpless civilians, including the children. The young son of two of Solomon's closest followers is found hideously burnt and dying, but still alive, begging his mother to save him as he dies in her arms. The one fighter who attempts to stop David is mercilessly slaughtered with nothing short of cold satisfaction. When engaging Solomon, David shows no regret or remorse, proclaiming his grand ambitions and utter megalomania.
  • Arba, once one of King Solomon's most beloved followers, fell into depravity when Solomon's will supplanted that of Ill Ilah's. Devoting herself to destroying the kingdom of Alma Torran, Arba founded Al-Thamen, also known as "The Organization", and led an attack on the kingdom, culminating in her personally cutting down her surrogate sister, Solomon's pregnant lover Queen Sheba. Vowing to return to destroy the world Solomon creates anew, Arba manifests in Solomon's new world in the Kou Empire, having children for the purpose of possessing them when her current body is worn out. When she possesses her descendant Gyokuen, Arba murders Gyokuen's husband, Emperor Hakutoku, and his elder two sons, mocking her remaining son Hakuryu, the only son Arba herself gave birth to, for his helplessness in learning the truth. Murdering her second husband to seize the throne, Arba attempts to summon Ill Ilah back into the world to drain it dry of magic and leave it a barren, lifeless husk, devoted only to the will of Ill Ilah and to the destruction of all Solomon has made.
• Majin Tantei Nougami Neuro: Sicks, real name Jody Tubulik, 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 demon detective Neuro Nōgami. 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, the sadistic 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's goal was nothing less than the absolute annihilation of humanity, and on his orders, Japan suffered catastrophic death tolls before he and Neuro finally engaged in a Duel to the Death.
• Makai Tensho manga, by Ken Ishikawa: Mori Soiken is a centuries-old wizard who plans to create a portal to Hell to unleash Satan and plunge the world into darkness. Originally a ninja named Karula, Soiken discovered the powers of resurrection and the gateway to Hell. The father of demon Amakusa Shiro Tokisada, Soiken took him as his own in order to find out Hell's secrets and to easily control Satan. Orchestrating the Shimabara Rebellion alongside Amakusa, Soiken has 30,000 of his men slaughtered as an offering to Satan, and once that was deemed "too small", he decided to resurrect the spirits of various Japanese warriors as powerful demons using women as incubators. With his squad, Soiken has Hoizon kidnap hero Yagyu Jubei's dying father to make him a demon, spreads a disease upon the Kishu village that causes its citizens to go mad, and tries to have Jubei resurrected to serve as his most powerful fighter.
• Maken-ki!: Takeru Yamato is a sadistic monster whose fear of death lead him to slaughter his brother's wife, Yatsuno, to attain her power in his quest for godhood and immortality. Centuries after his death, Yamato's spirit eventually took over his descendant, Ouken, and converted his organization to Kamigari, which kidnapped women who were then forced to become his concubines, or have their souls eaten if they refused him. All the while, he relentlessly pursued his niece Himegami, to use as an instrument to break the Ama no Iwato seal. He blew his chance when he tried to rape her instead, as a way to mess with her friends, and starts a brutal war with Tenbi Academy and Venus. Yamato is also quick to kill his minions for any failure and will readily dispose of them regardless. Just before the final battle, he kidnaps Ms. Aki and reduces her to being a mindless Sex Slave, before tentacle raping her so she'll give birth to Habikiri, the holy sword that bestows godhood and immortality to whoever touches it. In the final battle, upon absorbing the power of Yamato no Orochi, Yamato hijacks a message all across Japan to mind-control them into killing each other.
• Malicious Code, by Masahiro Ikeno: Echidna is a member of the Killers, an organization led by Edgar to control the ruins of Tokyo. Roaming in the ruins of Tokyo to search Code users and kill them to steal their powers, Echidna steals the eyes of her favorite victims and implants them into herself. Interrupting the fight between Hiro and Izumi, Echidna uses her powers to control the body of one of Izumi's friend and force him to kill an injured Izumi. Revealing the truth about herself, Echidna admits being behind the spread of the Pandora Virus that killed 90% of the Japanese population, and the creator of Hiro and the rebellious Killer Mikoto, calling herself their mother to insult the former. Using the powers of the powerful, blind Yomi, Echidna admits having ripped Yomi's eyes to have her powers when she was a child, declaring that she didn't needed them before trying to kill Hiro and his friends. Having killed dozens by her own hands, Echidna also helped to killed millions in the past, all for the sake of her own power.
• MÄR: The manga version of Halloween is one of the most sadistic and brutal members of the Chess Pieces. Originally a homeless and bullied boy by the name of Pamp, he had a firm belief that the weak become sacrifices for the strong, and promised to become strong so he could kill everybody in the village. He started off by killing neighborhood pets before going on to stab five kids to death and fleeing the village. During the first War Games, because he and Alan tied, he cursed Alan and Edward to be forcibly merged together out of spite. Six years later when Phantom resurrects, Halloween and Chimera launch an attack on the country of Acalupa, destroying it and wiping out the majority of its population, recounting to Ian how fun it was. To punish Ian for not taking part in the attack on Märhaven, Halloween has Chimera transorm Ian's best friend, Gido, into a grotesque mixture of human and monster, knowing it would cause more pain to Ian if his best friend was punished instead. During his fight against Alan in the second War Games, Halloween distracts Alan by setting several innocent spectators on fire while telling Alan how sickened he is by Alan's sense of protecting those in need.
• Marry Grave: Markov is the Gorgon King who invaded the Dwarf Kingdom by petrifying most of the people inside so that he could put them in his collection of statues. In the past, he was a stepfather of Riseman Sawyer's guardian, Dante, who uses him as a puppet for slaughtering most of the soldiers while lying about what happened to Dante's parents. After Dante found out the truth, Markov killed Dante's parents during his murdering spree just for the sake of his amusement, and when Dante re-settles his score with Markov in the present day, the latter simply petrifies Dante.
• Metal Armor Dragonar: General Dorchenov is a high-ranking, brutal member of the Giganos Empire who pushes his leader Marshall Guiltorre to worse deeds, including advocating for a group of Earthling demonstrators to be massacred. When he reveals his super weapon, the Lava Gun, to cause mass casualties on Earth, a disgusted Guiltorre rebukes him, resulting in Dorchenov murdering him, framing the heroic Giganos pilot Meio Plato of the crime and seizing control of the Giganos empire. Dorchenov proceeds to brutalize the Earth, ordering as much death be brought to he planet as possible. When he loses the advantage, he orders his own men to initiate suicidal tactics and takes advantage of an attempted cease-fire to kill even more of Earth's forces, taking the hero Kaine's mother hostage to gain a greater advantage, admitting he cares nothing for the cause of Giganos as long as he can win in the end.
• Metropolis, by Osamu Tezuka: Duke Red has Dr. Lawton create the android Michi as a prototype for his Slave Race. Aiming to conquer the planet with his machines, Red works his replicas to death after Lawton rescues Michi from him and later kills Lawton himself. Red also has the global temperature raised, mutating animals that attack and kill humans across the world, while he rules the world from Antarctica, attempting to kill children to recapture Michi.
• Michiko & Hatchin: Shinsuke Saci Rodriguez is Satoshi Batista's sadistic right-hand man in the Monstro Preto gang. Wiping out a city with Satoshi, upon finding their main target, Shinsuke suggests slowly drowning the man in a bucket. Sent to deal with a gangster posing as Satoshi, Shinsuke makes a cruel game out of the job, picking off the gangster's men with snipers. Betraying Satoshi, Shinsuke later forces an underling to kill himself off railing a train in an attempt to murder his former boss and claim Monstro.
• Mixim: Dodo is a Monster Clown whose only purpose and drive in life is to devour all he can. Dodo, initially a member of the Big Bang Zero group and one of their four elites, 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 planets, 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 trying to kill and devour all the other good guys as well.
• Mnemosyne:
  • 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 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. He then reveals the world tree Yggdrasil to the world to have humanity infected with the time fruits and become immortal so he can harvest them at leisure. Apos betrays Laura and forces Rin to kill her old lover, who 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 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.
• Mon Colle Knights: Redda is a Fallen Angel seeking the power of Oroboros to reform the world into a place of pain and terror. A master manipulator, Redda corrupts the suffering angel Gabriolis into becoming his commander and lead his armies to quash the defenders of the world. When Gabriolis learns of Redda's trickery, Redda declares his minion a fool and summons the Dread Dragon as a host for Oroboros, taking one heroine hostage within the beast to prevent her friends from attacking it and attempting to use the Dread Dragon to consume the world and create his desired eternal realm of suffering.
• Monster: Professor Günther Goedelitz is an admirer of Adolf Hitler and radical Nazi adherent. Goedelitz forms an alliance with 3 other men and orchestrates the scheme to burn the Turkish district out of cruel racism, murdering the terrified prostitute Ayse when she overhears the plan. Kidnapping Nina Fortner, Goedelitz reveals he plans to use her as a captive to forcibly transform her brother Johan Liebert into a new dictator to restart the Nazi movement and finish the xenophobic war against all who aren't of the Reich. Monster is dedicated to exploring whether there is such a thing as pure evil, and concludes that while anybody, no matter now heinous, can be redeemed, it is Goedelitz's choice to refuse redemption that makes him a monster.
• Monster Hunter Stories: Ride On: Lord Anvis, the ambitious ruler of the Ebon Riders, has coveted the power of the Rite of Overlapping since he was a child and envied those who harnessed its power. Anvis's first attempt at the Rite involved forcing the man capable of performing the ritual into doing so with a knife pointed at his wife's neck, resulting in a botched ritual that killed both the man and his wife anyways. Anvis later repeats another attempt at the Rite he knows is doomed to fail with one of his loyal minions in his place, resulting in the annihilation of her soul. Anvis manages to cajole the son of the sorcerer he murdered years ago into performing the Rite on him, and with his newfound power Anvis promptly annihilates the nearest town and attempts to obliterate the gigantic city of Gildegaran simply because he believes the strong must eradicate the weak. Anvis is the sole demonstration of genuine human evil and the only figurative monster in a franchise full of literal monsters.
• Monster Rancher:
  • Moo—"Muu" is Japanese for darkness or emptiness—was a Super-Soldier created by an ancient civilization to win a war. However, Moo realized how powerful he was and viewed himself as too good to be a living weapon, destroying all who wouldn't serve him. Feeding off anger and hatred, Moo turned many monsters into his servants before his battle with the Phoenix ended with his soul sealed into a Mystery Disk. Ages later, Holly's father finds the disk in his search to prove the Phoenix's existence, unintentionally freeing Moo, who possesses the man and feeds off his deep rage at being banished. Seeking his real body to resume his conquest, Moo recruits many monsters with anti-human beliefs to aid him, giving them crests that, if removed or destroyed, will kill the wearer. All humans and monster who do not conform to his views are either killed or enslaved. Realizing the Magic Stone can help him find his body, Moo kidnaps Holly, revealing his identity to her to bring her to his side. Along the way, his crimes include corrupting Tiger's brother Gray Wolf; killing his minions for any reason; and the attempted murder of a little girl after reclaiming his true body. When he is seemingly destroyed, Moo's soul was found by General Durahan in a bid to grow more powerful, only for Durahan to become Moo's new unwilling host, already driven insane from all the hatred he absorbed and aiming to destroy the world. Feared and hated by human and monster alike, Moo stood out in this otherwise fun adventure series as a creature of pure evil.
  • Lilim is General Durahan's right-hand woman and convinces him to betray their master, Moo, and take power for themselves. When first attempting to stop the Searchers and take the Magic Stone, she holds a human baby hostage to force Jagged Hound and Tiger into a fight to the death, then orders it killed once the fight is over. When Jagged Hound seems to emerge victorious, she presents Tiger's Lost Disk to the Searchers and laughs at their despair, then orders them killed, quickly fleeing once it turns out the death was faked and the baby saved. On a later assignment with a Weed to get the Stone, she cruelly wounds him once it's retrieved, then has him gunned down in a display that horrifies the Searchers, who she orders killed in the same way. Lilim soon realizes that Moo is much stronger than Durahan and betrays the General in a bid for more power, killing his frozen soldiers and setting his ship to self-destruct with the Searchers and everyone else onboard.
• Muhyo and Roji: Of all the villains Muhyo and Roji has encountered, these two came across as the most monstrous:
  • Teeki the Fallen, of the forbidden magic association Ark, manipulates their leader Soratsugu "Enchuu" Madoka by killing his mother and building his hatred. Responsible for nearly all the misery and suffering in the first half of the manga, Teeki disguises himself as various members of Magic Law Association—MLS—in order to manipulate a desperate teacher, Rio Kurotori, and plans to unleash the powers of a book that would kill millions. Toying with the emotions of a troubled girl, Teeki convinces her to join him, promising it will bring her attention from the boy she loves. Releasing all the ghosts sealed in the Arcanum-—and strangling the Executor who discovers him-—Teeki basks in the chaos they cause. In his final battle with the heroes, Teeki orders his pacifistic follower to kill anyone armed with a weapon that can harm him. When the subordinate refuses, he threatens to destroy the sweets holding in his curse, which would end up killing the subordinate and wiping out the heroes. Merging with Enchuu in a final attempt to kill anyone in the way of his plan to cause countless deaths, Teeki remains a bitter monster to the very end. Although his hatred of the MLS is explained by his excommunication from them, Teeki's choice to spread pain and destruction to many innocents cements him as an irredeemably wicked being.
  • Tomas is a former MLS teacher who is wanted for several crimes such as abduction and identity forging. Joining the ARK so that he could become immortal, it was revealed that Tomas had a penchant for collecting countless things, including human souls, that he kept in his collections while keeping their consciousness intact, leaving them in constant torment. When ARK members made their move by burning one of the Executor's headquarters, Tomas wastes no time to kidnap said Executor and tortures him with a worm that could turn him into a ghost. When Muhyo and his companions tries to save said Executor, Tomas uses the latter and all of his collections as a personal weapon to attack Muhyo and his companions. Seemingly defeated, he then gained a new body granted by his envoy, planning to use said new body to fulfill his obsession of collecting pretty things in the world.
• Murder Princess anime: Cecilia is a mysterious black mage who, prior to the main story, in order to test her power, decimated a nearby village, which resulted in one of the villagers, Falis, becoming a bounty hunter. Cecilia also murdered Falis's father in cold blood. Several years later, it was revealed that she gave the information of the lost technology to a humble scientist of the Foreland Kingdom, Doctor Akamashi, which causes said scientist to launch a coup d'etat against the Foreland Kingdom. Cecilia also brainwashed the crown prince of the Foreland Kingdom into becoming a Black Knight in order to gain the power of the lost technology known as Teoria, and when Akamashi tries to seize the power of Teoria for himself, she then executes Akamashi by using the brainwashed prince.
• Musuem, by Ryosuke Tomo: Sanae Kirishima is a sadistic Serial Killer who believes his murders to be artistic entertainment worthy of recognition, and thereby dons a cartoonist frog costume to carry out his mad vision. Having likely murdered his own parents as a teenager, Kirishima goes on to drown and display the body of a four-year-old girl in sap. When someone else is convicted of this crime, the attention-craving Kirishima decides to "punish" the judge and jury for wrongly attributing his work, and subjects his half-a-dozen victims to horrid deaths like being fed to dogs or having their flesh sliced off to meet a certain weight scale. When Detective Sawamura closes in on the killer, Kirishima murders Sawamura's partner, psychologically tortures Sawamura into believing he cannibalized his own family, then tries to force Sawamura to murder his own wife lest Kirishima execute their toddler son in front of them both.
• Mushiking: Adder in the Portuguese-EU dub lacks any of the tragic backstory that his Japanese counterpart had and is behind all the bad things that happen. Seeking to escape from the forest by activating a spaceship, Adder uses all of the life force of all organisms in the forest, resulting in vast regions becoming a lifeless wasteland. When one of his servants saw his family vaporized, Adder then lies to him by saying that it was all the main character's fault. After this, he released the red-eyed beetles to cause more death and misery towards other ecosystem. Due to his spaceship needing a seal in order to activate it, Adder sends his mercenaries to the protagonists to retrieve said seal and tries to enslave one of the protagonists—who is essentially a child—to pilot his spaceship. After the seal denied Adder the ability to pilot the spaceship, Adder then tries to murder everyone who is aboard on the ship out of spite.
• Mushoku Tensei: Jobless Reincarnation: Gallus Cleaner is a smuggler who runs a trafficking ring, kidnapping beast children and selling them off to slavery, while the children under his imprisonment are horrifically abused, with one child getting killed as a result. Saved by Rudeus Greyrat, Gallus assigns Rudeus and Ruijerd Superdia to retrieve the children from his captivity, arranging Ruijerd to kill his own men to distract the authorities from his operation while following Rudeus to the Beast People's village when they arrest the latter. Arriving there, Gallus and his forces lay siege to the village, killing countless innocents, while kidnapping all their children and nearly killing Rudeus and Gyes Dedoldia when they try to stop him.
• My Dearest Self with Malice Aforethought, by Hajime Inoryu & Shota Ito: Sai Yashiro is the leader of Skall, a criminal gang that administrates a dating site that is actually a prostitution ring that forces young woman into service by threatening to leak their nudes. Sai is also an admirer of the mysterious Serial Killer LL, naming Skall for the latter's phrase "I Shall Kill Again". When protagonist Eiji steals a large sum of money, Sai threatens a suspicious member and allows a dog to bite his genitals, killing him in the act. Eventually discovering Eiji's betrayal, Sai threatens Eiji's best friend by frying living animals in his workplace and kidnaps Eiji's girlfriend to lure him to a forest, where Sai ties Eiji to a boat and forcefully feeds him with sweets to make the insects devour his insides, mentioning that this isn't his first time using that method of execution. Sai is also revealed to be the murderer of Youko Hatanaka, copying LL's history of murdering sex workers.
• My Hero Academia:
  • All For One, the Symbol of Evil, was a nameless child born with the power to steal Quirks. Forming an egotistical belief that all life existed only for his benefit, he killed his way through countless innocents while stockpiling their Quirks and building a criminal empire to become the ultimate "Demon Lord" from the comics of his youth. Murdering his own brother Yoichi in a fit of rage for defying him, All For One annihilated the rebellion against him while erasing entire bloodlines to stamp out any hope of rebellious sparks. Killing numerous successors of Yoichi's Quirk, One For All, All For One was ultimately defeated and seemingly slain by the great hero All Might. Surviving in the shadows, All For One steadily corrupts youths to serve as new villains, using some as experiments to create monsters and later dispatches his legion to murder an entire class of young students. After supposedly elevating the traumatized young Tenko Shimura/Tomura Shigaraki as his successor, All For One plans to possess and erase him. Upon the final war, All For One abandons even some of his most loyal henchmen to death while attempting to take a powerless All Might and break him before the entire world he intends to model after his own twisted fantasies.
  • Goto Imasuji, better known as "Muscular", is a sadistic supervillain with a Quirk that allows him to control his muscles and augment his body. Caring only for bloodshed and murder, Muscular attempted to massacre a town before being stopped by the hero duo Water Hose. Torturing and killing the two, Muscular later tries to murder their young son Kota for fun. Later released from prison, Muscular attempts to rampage across numerous towns and cities to massacre any civilian he can find, rejecting any overture from Izuku Midoriya and stating he only cares about indulging his appetite for murder.
  • Vigilantes: Queen Bee, aka Kuin Hachisuka, is a Quirk-using queen bee and a dealer for the dangerous drug Trigger. Having critically wounded the wife of the hero Knuckleduster and possessed his daughter Tamao, Queen Bee proceeds to infect innocent civilians with Trigger, causing painful rampages. Queen Bee then convinces the vigilante Stendahl to murder delinquents; causes a passenger-filled bus to crash; and infects one of her friends. Queen Bee then attempts to infect an entire concert with Trigger and tries to detonate explosive-filled bees when cornered and kill Tamao out of spite for her father. Upon barely surviving, the remaining Queen Bee infects and possesses the hero Kazuho Haneyama, driving her mad and causing her to become "Bee Pop" and go on a bombing rampage with full intent to murder as many civilians as she possibly can to get the attention of the heroic Koichi. Aiming to kill countless civilians and be remembered while also ruining the lives of Koichi and Kazuho, Queen Bee proves her deadly influence exists even long after her supposed "death".
• My-HiME franchise: In this dark Magical Girl Genre Deconstruction, these are the worst villains the heroines have faced:
  • My-HiME: The Obsidian Lord/Prince, the will of the HiME Star itself, is a maniac with a desire to wipe out humanity in both versions:
    • Anime: The Obsidian Lord/Prince is the leader of District 1/the First District. Long before his awakening, he had Mikoto Minagi and Reito Kanzaki raised in a cult, making Mikoto kill her own grandfather and eventually possessing Reito. After using Nagi Homura to create the monster Orphans and manipulate the heroines into destroying the rival Searrs Foundation, getting scores of people killed as a result, he forces the heroines into the HiME Carnival/Festival, a Deadly Game in which they must destroy each other's CHILD, which will result in the person they love most dying, under the threat of destroying the world via Colony Drop if they refuse. Having held these bloodbaths numerous times in the past, he, as Reito, manipulates Mikoto, Shiho Munakata, and Mai Tokiha into fighting each other, deliberately getting Takumi Tokiha and Yuuichi Tate killed to break Mai. He also takes the victims of the battles and traps them in pillars to use the souls as power. When Mashiro Kazahana confronts him, he restrains her and puts her maid, Fumi Himeno, under mind control to serve him. Finally, he reveals that he intends to make Mai, the winner, into his bride, and have her kill Mikoto before using her to birth his new, "perfect" race to replace humanity after he kills them all.
    • Manga: The Obsidian Lord/Prince is the mastermind behind the monster Orphans who seeks to destroy humans after having nearly done so in the past. Having possessed the bedridden Takumi Tokiha, he orders Nagi Homura to create the Orphans and cause chaos, while also manipulating the rival Searrs Foundation into attacking. He has Nagi transform Pochi, an Orphan that Mikoto Minagi has been caring for, into a monster that attacks the heroines and is forced to kill itself to save them. He later uses the Star to corrupt Shiho Munakata, turning her into a possessive maniac who kidnaps Yuuichi Tate. Revealing himself to Mai Tokiha, he uses her love for Takumi to turn her into his minion and bride, then broadcasts his plan to the world and, to show he is serious, obliterates Washington DC. When the other heroes infiltrate his lair, he has Mai and his creations, the Great Cosmo Beauties, brutally beat them. Finally, he betrays the Cosmo Beauties by absorbing them into his CHILD form, and tries to use the HiME Star to wipe out humanity.
  • My-Otome:
    • Grand Duke Nagi Dai Artài and John Smith, from the anime, are the respective leaders of the Artài Principality and the terrorist organization Schwarz. Desiring to Take Over the World, the two begin by firing an energy cannon on a crowded stadium, injuring many, then unleashing their armies on the Kingdom of Windbloom. Smith also forces Erstin Ho, whom they have raised to be a spy, to attack heroine Arika Yumemiya, while Nagi manipulates Nina Wang into joining him and has her also attack Arika, resulting in Erstin sacrificing herself—to their amusement. Once in power, the two exile Queen Mashiro and the poor population into the desert to die while also using the corpse of Lena Sayers to create the Valkyrie, Otomes that must obey Nagi under pain of electric shock should they refuse his orders. They then order Nina to use the Harmonium to destroy entire cities and kill everyone within, intending to spark a world war. Upon the heroines returning, the two men send their minions to kill them all. Smith then attempts to kill Sergey upon the latter's betrayal; when he fails, Nagi shoots Sergey instead and uses his life to further extort Nina into following his orders, later having her destroy Windbloom and putting the entire planet in danger out of spite when his plans are foiled. Despite claiming to want to free Otomes from their contracts, their real aim is to force everyone to suffer the pain of war.
    • Tomoe Marguerite, also from the anime, uses her charm to mask her malicious intentions. Throughout the show, she tries to personally take out Arika Yumemiya because she saw her as a potential threat to her affections towards her elder Shizuru Fujino. Her attempts involved trying to convince a gang to rape Arika, knowing that if they went through with it, her Otome powers would be neutralized. She later goes on to betray the Alliance, stating that she deserves to have anything that she wanted, and that everyone's lives, except that of Shizuru's, are meaningless to her. She gladly works under Grand Duke Nagi Dai Artài and John Smith, becoming the leader of the Valkyrie squad and bullying her friends into subservience. Despite supposedly loving Shizuru, Tomoe takes great pleasure in essentially making Shizuru into her plaything. When Shizuru reveals to her that she never loved her, Tomoe rants, noting the similarities between her and the older Otome, and states that she was entitled to be the only person to have her, then finally attempts to kill her and Natsuki.
    • Sergey Auguste Taiki, from the manga, is the true mastermind and a far cry from his anime counterpart. In the backstory, he brainwashed Mai Tokiha and Mikoto into becoming his minions, and used Mai and Kagutsuchi to burn down the village where Arika Yumemiya and the male Mashiro lived, killing nearly everyone inside, then raised the male Mashiro as a pawn. As the Prime Minister of Windbloom, Sergey orders military expansion, bringing mass unemployment. He manipulates the Schwarz and Grand Duke Nagi Dai Artài into causing chaos, and upon revealing this, he orders Mikoto to kill the heroes, resulting in Nagi sacrificing himself—to his amusement. Feigning loyalty to the real Mashiro, Sergey helps her take over Windbloom, making his rule even harsher than before and allowing his soldiers to torment and rape the citizens. He unleashes the Dark HiME to kill the heroes, resulting in Nina Wang and Erstin Ho grievously injuring themselves to save everyone. When the heroes confront him, he traps the male Mashiro in a nightmare, forcing him to relive his brutal bullying, while trying to force Arika and Nina to kill each other, then betrays the real Mashiro and controls Fumi Himeno into killing her, before stabbing the male Mashiro. Finally, he transforms into a giant monster and engulfs Windbloom in darkness, intending to destroy the world that he feels is filled with lies. A total madman, Sergey is said by the male Mashiro to love no one, not even himself.
• The Mysterious Cities of Gold:
  • Conquistador Francisco Pizarro is the conqueror of the Incan Empire and a cruel, greedy man out for his own enrichment. Seeking the Cities of Gold, Pizarro tries to have entire villages razed and to kill or enslave young Esteban and his friends. Taking over the Incas, Pizarro forces them into slavery and massacres a great deal of them, wiping out their empire to establish control. Ostensibly loyal to the Spanish crown, Pizarro's only true loyalty is to himself and his insatiable greed.
  • King Menator is the cruel ruler of the Olmecs, an underground race seeking immortality. Tyrannizing many of the local tribes, Menator kills and harvests countless innocents for their skin cells to rejuvenate himself and the Olmecs, trying to have Esteban and his friends subject to the same fate and ordering an entire village massacred when they escape into its borders. Menator seeks the Cities of Gold for its priceless technology, using his flying weapon to vaporize many of the Mayans—whom he regards as utterly inferior—when they rise up against him, and even horribly beating the young Tao against a cliff side with the threat of killing him if he's not allowed access to the Cities of Gold. Though preaching everything he does is for the benefit of his race, Menator only intends to preserve those "worthy" while dismissing the lives of the rest and even his own loyal soldiers, intent only on taking what he can and killing everyone else in his way.
• Mysterious Joker anime: Professor Clover, introduced as a mere treasure-hunting burglar, reveals himself to be insatiable greed personified in his second appearance. Kidnapping and posing as a kingdom’s general to manipulate the land’s princess, he seeks to activate a weapon which would destroy the city, just to get an orb to power up his staff. To gain a rare treasure, Clover murdered the parents of two main characters, leading to both going through horrific childhoods following being orphaned. Previously working as the agent of an unknown federation, Clover again worked to steal another treasure, hoping to use its power to threaten the citizens of the nation containing it to submit to them lest he wipe them from the face of the Earth. Manipulative and cruel, Clover corrupts a girl with time-bending powers, using her to steal more treasure and cause more havoc. When the heroes try to save her from his clutches, Clover threatens to murder her with acid, rather than lose her. Clover stands out in a usually-lighthearted series.
• The Mystic Archives of Dantalian anime's "Book of Soul Exchange": Paula Dickinson stood out for her truly horrible crimes. An obsessive fan of "Crown of the Dog Days", she stalked the author Leni Lentz and assaulted and harassed many of his friends and family. When she found out the ending to Leni's final book in the trilogy, out of rage and spite she took Leni and her lover hostage and tried to force him to redo the ending. When Leni remade it, Paula wasn't satisfied, killing him and then subjecting him and his lover to a cycle of life and death through her Mystic Tome, which involves reviving and brutally killing them over and over again in front of each other. When Huey and Dalian start to uncover her crimes through Leni's message of help, Paula decides to take the two prisoner and brutally tortures the couple again to "discipline" them.
• Nabari no Ou: Miharu's seemingly-aloof ally, Fuuma Kotarou, is the true mastermind behind the tragedy surrounding the former's life. A 117-year-old ninja with shapeshifting powers, he manipulates multiple important people to obtain the Shinrabanshou so he can become God. Posing as Inasa, he founds Kasa and uses the organization to train children and teenagers into becoming his expendable assassins. A decade before the story, he brutally killed a four-year-old Miharu in front of his mother, hoping to drive the latter to despair. In the story's climax, he betrays and murders his partner, before trying to steal the Shinranbanshou from Miharu—knowing doing so would kill Miharu—and tortures Tobari while he orders his servants to kill all of Miharu's friends.
• nacuN, by Daisaku Tsuru: "The Prince" is an Okinawan Yakuza from Komiya Island who extorts local fishermen and researchers, forcing them to work with him while also being willing to order murders to hide the evidence. Becoming the owner of a business after making a deal with protagonist Matsunari, the Prince expands his criminal empire by using Matsunari's hacking virus to steal from the most secure banks across the world. When the American government tries to destroy Matsunari's laboratory after realizing the danger that it poses to the world, the Prince responds by destroying five towns on the American border and causing environmental damage across Texas. Crafting a new identity as "Keichi Itoman", the Prince secretly takes control of Japan's institutions before declaring himself the new ruler of the world, causing an economic crisis to threaten the world into using his coin. When Matsunari refuses to use his superweapon again despite being at war with America, The Prince threatens to use the people of Komiya Island—including his own father—as Human Shields.
• Ne0;lation, by Tomohide Hirao and Mizuki Yoda: The Cracker code-named the "Beast of Gevaudan" is a genius hacker and Ne0's Arch-Enemy. Proclaiming himself as a crime consultant, assists several criminals, such as becoming a secret sponsor of "The Lemming Game", which causes several people to commit mass suicides; helping a street racer with his illegal activity, and even helping a politician to spread fake news to eliminate his rivals. When one of the criminals failed to meet his expectations, he brutally murders said criminal. When Ne0 attempts to stop Gevaudan, the latter, in order to spite Neo, erases all of Neo's footage of Gevaudan's murder of a hacker Lemming.
• Necromancer: Even in this dark manga, these two stand out as the worst Slum Street has to offer:
  • "Way to Attain": Detective Ricott's unnamed superior appears to be a kind, upstanding policeman, when in actuality, he's the leader of a child trafficking ring where he kidnaps children from Slum Street to be sold for money. When the thief Lito continuously saves the children, the superior has Lito framed for human trafficking and has him executed. When Ricott discovers the superior's plot, the superior tries to kill her and the resurrected Lito. while the latter tries to save his captured young sister.
  • "An Ugly Guardian" arc: Jack the Ripper is a brutal Serial Killer who decapitates people she finds beautiful and keeps their heads in jars as a way to admire their beauty. Having done this to 29 people, including a widower who showed appreciation to the Grave Keeper, Jack tries to make Detective Ricott her next victim, mocking the Grave Keeper for ever thinking that the widow could ever love him.
• Neon Genesis Evangelion: Campus Apocalypse: Iruel is the most sadistic of the monstrous Angels who plan to eradicate mankind. Using her powers, Iruel infects a school computer system to hypnotize countless students into becoming her zombie-like attack dogs, assaulting other humans for her in berserk rage. Confronted by Evangelion user Asuka Langley Soryu, Iruel torments the young woman by assailing her with visions of her dead parents to break her before attempting to kill her.
• Night Warriors: Darkstalker's Revenge: Pyron is a malevolent alien being who travels from world to world for fighting and excitement, inevitably destroying them when they fail to meet his expectations. Arriving on Earth, Pyron announces himself by annihilating populated towns with the warning to entertain him or risk death. Pyron proceeds to kill multiple defenders of Earth in the ensuing fight, gleefully tormenting the hero Donovan, and when Donovan manages to stand up to him Pyron attempts to wipe out the world and everyone in it out of spite.
• Ninja Resurrection OVA: Mori Soiken is the chief strategist for Amakusa Shirō, aka Jesus Christ. Planning to create a Hell on Earth, Soiken tries to get Jesus to be reborn as Satan by destroying his idealism, doing so by killing two young girls he knew and framing Yagyu Jubei for the murders. Forcing Jesus into having sex with his daughter Ocho, Soiken leaves the injured Jesus to be killed by the Tokugawa. Resurrecting Jesus into Satan at the cost of Ocho, he unleashes him and his squad of demonic warriors to start a global attack on humanity.
• No Guns Life anime: The nameless Extended, debuting in "Phantom Limbs", is a racist guard for Berühren tasked with painting terrorist group Spitzbergen as killers without a cause. To do so, the Extended swaps out a train full of Berühren employees that was to be bombed by Spitzbergen member Colt with a train car full of innocent protestors and orphan choir children. Preparing to have them killed, the Extended shoots Colt when he tries to stop disarm the bomb, mortally wounding him in the process. Returning in the series finale "Earnest Desire", the Extended shoots Pepper's arm off in an attempt to take her and Seven out to keep Berühren's reputation intact.
• Noir: Shao-Li, a assassin for the Triads, is infamous for her poisonous methods and remorseless attitude towards her kills, receiving the nickname "The Cold-Blooded Killer". Introduced after one of her assassinations, Shao-Li is called by her forces to help deal with the duo assassin Noir and the Soldats due to their presence in Hong Kong. Tracking them down by using an informant, she leads a charge to kill the two hired killers and eliminate the informant, since he's no longer of any use to them. When Noir was able to fight off the attackers, she retreats and returns to his employers only to kill them off herself so she could realign with the Soldats and save herself. Approaching them, she was immediately rejected due to her history of backstabbing, and in retaliation Shao-Li tries to kill their representative. Even to the ruthless and unscrupulous Soldats, Shao-Li was seen as nothing more but a deadly poison for anyone and everyone.
• Now and Then, Here and There: King Hamdo plunders resources from a desperate land and kidnaps children to use as soldiers in his army. Introduced strangling his own cat to death, Hamdo reacts with insane glee upon learning his men have found a girl who possesses an amulet capable of creating water, a precious resource in his time. When he discovers she's lost said amulet and refuses to help him find it, Hamdo flies into a rage and is implied to rape her. So cowardly that any threat to his life sends him into a panic, Hamdo orders his second-in-command to fire upon the frontline, not caring that his own Child Soldiers are engaged in combat.
• Nura: Rise of the Yokai Clan: Sanmoto Gorozaemon is initially a member of Hagoromo Gitsune's entourage, but in truth pursues his own agenda. Formerly a human merchant in old Edo and suffering from boredom, he opted to dabble into the dark Hundred Tales' clan's power to unleash a swarm of Yokai (supernatural creatures) that terrorized the nation through indiscriminate killing while Sanmoto brainwashed high ranking officials into his own personal cult. When cornered by the past hero Rihan Nura, Sanmoto opted to become a Yokai himself, resulting in even more death and destruction. In the future, Sanmoto secretly worked with the true Big Bad Abe no Seimei, transforming Rihan's first wife into an assassin to murder him in a child form, gloating over how she murdered the man she had loved while looking like the child the two could never have. Unlike most of the villains who either brainwashed or had aspirations of creating a paradise for yokai, Sanmoto was merely a vulgar man with a god complex who terrorized Edo for his own greedy ambitions. Even a side story delves into how vile he is: when he is rejected by a lady who disliked him, he responded by killing off her family and friends and then picked her up when she was destitute and mentally scarred from the ordeal.

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