Seiji Noumi, Arc Villain of the Dusk Taker arc. He's a member of the Acceleration Research Society, who are implied to be the main antagonists of the series, but Noumi seems to be fairly low-ranking. He does, however, prove to be a thoroughly unpleasant Smug Snake who blackmails Haru into gathering points for him and having Haru's friend Chiyu become his tag partner unaware that Chiyu is planning on betraying him and returning Haru's wings. He does have a Freudian Excuse (although since the same goes for most Burst Linkers, it doesn't say much)- Seiji's older brother bullied him, and forced him to give points to Yuichi (like Yuichi does with his victims), until Seiji unlocked his ability and brutally erased his brother from Brain Burst- but given that Seiji took sadistic pleasure in doing so, it doesn't inspire much sympathy. The closest Haru, who was bullied himself gets to sympathizing with Noumi is saying that they might have been friends if Noumi had approached him and his companions as another Burst Linker.
Araya also serves this role as leader of the Gang of Bullies who's been harassing Haru and taking his lunch money ever since he started middle school, which further amplifies Haru's self-esteem issues and slowly drives a wedge between him and his friends. When Kuroyukihime tricks Araya into punching Haru on the security cameras, and Araya finally gets caught and suspended, Araya tries to kill her and Haru in retaliation, forcing Kuroyukihime to perform a Heroic Sacrifice to save Haru that nearly kills her, as well as forcing her to give up most of her points. Araya is yet another loathsome bully, and while Taku, the actual antagonist of the first volume, has done some questionable things, he comes off as a more sympathetic character by comparison, especially after he works to make up for what he's done.
Prime Minster Honest contrasts the admirable traits of General Esdeath as a hideous and selfish hedonist who devotes himself only to causing suffering for his own pleasure. Regularly tormenting or killing the citizens of the Empire, Honest spends near the entirety of his page time smugly gloating about his crimes, and when his own life is put in danger, cowardly flees to save himself, firmly establishing himself as one of the most disgusting characters in the work.
Syura is Honest's equally contemptible son who, along with his squad, the Wild Hunt, uses the authority bestowed upon them to conduct rapes and murders at their leisure, under the guise of upholding the law. Lacking the nobility and standards of their rival group the Jaegers, Syura and Wild Hunt are never portrayed as anything more than brutes from the moment of their introduction, even raping the wife and child of a fallen Jaeger on his grave.
Champ is a Monster Clown who manages to become a specific target of hatred even in the low bar of Wild Hunt. A Serial Rapist and Serial Killer of children, he desires to take as many as he can before they grow to adulthood and in a particularly disgusting moment, even has trouble remembering some of his victims due to sheer volume.
Aria and her parents are seemingly kind nobles who lure commoners into their home to butcher them. An early representation of the Empire's elite being given free rein to torment their lessers, their sickening handiwork is seen in the countless bodies of tortured travelers they keep in their estate.
Arifureta: From Commonplace to World's Strongest: Hiyama Daisuke is the Barbaric Bully of the protagonist Nagumo Hajime and one who attempted to murder him so he can have Shirasaki Kaori all to himself. He even feigns remorse for putting his classmates in danger so he can convince Kouki to let him be alongside Shirasaki. When he discovers that not only did Nagumo survive his murder attempt and is fully aware of what he's done, but also that he has gotten stronger and is able to kill him if he so wished, Daisuke starts to lose his mind, more so when Shirasaki decides to join Nagumo's party. Conspiring with Nakamura Eri to betray their classmates and the kingdom to the demons, Daisuke attempts to kill Shirasaki so she can be reanimated into a doll to love only him. He earns himself no sympathy at all when Nagumo (who didn't bother to kill him because he deemed him not worth it) finally loses every shred of mercy he had left in him and kills Daisuke by throwing him to the monsters, mirroring how Daisuke attempted to murder him.
Ashigei Shoujo Komurasan: Lulue Hanabira is a rich dancer who becomes the self-proclaimed rival of Komurai Komura. Upon accidentally kicking her foot into Tsukinaga's mouth, Lulue vows to "remove every taste of Komura" from it. As an attempt to learn if Komura had any weaknesses, she holds Tsukinaga hostage threatening to pelt him with tennis balls if he did not disclose them.
Floch Forster is an out-and-out fanatic betraying former allies and friends left and right in blind support of a cause in which he is no longer capable of accepting or processing the many risks that come with it. Fully devoted to an imperialist agenda in which Eren would rise as the leader of Eldia and destroy its enemies, even if that means destroying the rest of the world to do it, he's clearly no better than those who themselves tried to destroy his people.
The nation of Marley as a whole can be considered this, especially the upper government. As more of the situation is revealed, they become far more nuanced, but the fact that they're basically the Nazis makes it difficult to really sympathize with them.
For the most part, Marleyans are portrayed as complex characters who are antagonistic because of the poisonous anti-Eldian propaganda they've been raised with... and then there's Sergeant Major Gross, who's basically all the worst traits of Marley wearing a hat; he's a sadist who tortures and murders Eldians and feels justified because they're 'subhuman'. Don't feel too bad that he only lasts a few chapters before his gruesome demise.
Karina Braun is an incredibly petty and delusional woman, manipulating her son down a path that destroyed his life and eager to do the same to her niece. Even her moments of affection towards Reiner are tainted by her constant lies, and inability to comprehend her son's pain. She's one of the few characters in the story not involved in any position in the military or the authorities, that has absolutely no redeeming qualities. What makes it worse is that she cannot even be called "crazy"; she's just a terrible person altogether.
Grior is unrepentantly racist and fully committed to the belief that the islanders are devils to be slaughtered; turns out not even Yelena has the patience for his hateful sentiments.
Baccano!'s first two anime arcs each have a hate worthy character, presumably due to the fact that 90% of the cast is full of criminals and thus you gotta have someone who makes the others look good by comparison, but perhaps the most noteworthy is Goose Perkins from the Grand Punk Railroad arc; he is a selfish, Smug Snake terrorist who forms a Big Bad Ensemble with Ladd Russo (an Ax-Crazy lunatic whose main desire is to kill everyone on the train For the Evulz)...and because of Ladd's sick sense of humor it's Goose who comes off as the most slimy and monstrous of the duo.
Baka and Test: Summon the Beasts has no clear-cut antagonistic force, save the characters' own idiocies. The Tokonatsu duo introduced as Filler Villains during the OVA serve as the necessary, obnoxious road bumps hindering the main characters' cultural festival.
Downplayed with Gambino. Even though he genuinely loves Shisu, even abandoning a battle to try and return home to save her, he puts Guts through Training from Hell, abuses him, and sells him to the pedophile mercenary Donovan at a cheap price because he blames Guts for Shisu death. Still enraged by Sys' death, he drunkenly attempts to kill Guts and ironically draws sympathy when Guts kills him in self-defense.
Donovan is a mercenary and sadistic pedophile who rapes Guts for a meager sum of three silver coins early in his life. This act traumatizes Guts for the rest of his life and nobody spares a glance when Guts kills him on the battlefield a mere day later.
Emperor Ganishka is the sadistic leader of the Kushan Empire, who commits depraved acts on a regular basis. While his goal is to challenge the similarly villainous Godhand, Ganishka is destructive and idiotic about the matter, permitting mass rape to spawn his demonic soldiers, the Daka, kidnapping Princess Charlotte in an attempt to rape her, and attempting unsuccessfully to kill everyone in Midland. He was so horrific as a villain that the fans rooted for Griffith (who is no stranger to horrific evil himself as anyone who's seen the Eclipse can attest) to take him down.
Chaka from Black Lagoon. While most villains have either tragic backstories or affable traits that make them fun, Chaka is a scumbag to the core with absolutely zero likeable traits.
Bokurano has Hatagai, especially in the manga. In the manga, he tricked Chizu into falling in love with him, then lured her to a hotel room and had his associates gang rape her, while recording a video and using it as blackmail material to get her to do what they want, before moving on to the next victim. When Chizu gets pregnant (the only reason she doesn't kill Hatagai and herself in a Murder-Suicide), Hatagai cheerfully suggests that she get an abortion and make a birth video. He's easily the most despicable character in the series, and to make matters worse, he also goes completely unpunished in both the manga and anime.
Vingulf as a whole is the enemy organization responsible for the creation of the magicians/witches, girls that they captured and experimented on since childhood. The experiments Vingulf carries out are gruesome and inhumane, often killing the subjects, and the survivors are extorted into working for them in exchange for a special medicine that they need to live, under constant thread of being painfully murdered via melting. Even Vingulf's low-ranking employees are willing to abuse defenless girls. It is later revealed that the girls are in truth aliens called Drasils that they implanted in the girls bodies, and that the true goal of the superiors is to eradicate humanity. A vile organization that commits atrocities in the name of 'advancing humanity', Vingulf shows just how awful humans can be.
Onodera is a magician that enjoys causing suffering to other magicians. Despite her own annoyance and frustration towards her status as a magician at Vingulf's will, Onodera is perfectly willing to abuse the newest Valkyrias in order to archieve results. When she is ordered to train the extremely powerful Valkyria Hrist, Onodera's method is to force her to Mercy Kill weaker magicians until Hrist loses her sanity and becomes a broken and obedient servant. A petty woman with a tendency for extremely violent behavior at the slightest provocation, Onodera lacked any of the pity or tragedy of other magicians.
Machina, the only male magician, is an extremely powerful, entitled teenager and Misanthrope Supreme. Obsessed with Neko Kuroha, considering her to be the Eva to his Adam, Machina constantly uses violence against her and murders the sister of Kuroha's best friend Kana in front of her as they tried to reconnect. Extremely petty and violent, Machina reacts to the apparently defenseless alien known as The Sorcerer by beating and mock him, leading to his pathetic death. Hated for the Astronomy Club and seen as a expendable pawn for his own father, Machina was a truly disgusting person, and The Sorcerer comments that even his taste was unlikable.
Citrus: Many characters in the manga and anime series have their own faults, but are good persons deep inside. The same cannot be said for Mei's former fiancée Amemiya. He was a Gold Digger who was only in it for the high status it would grant him, and he has a lover that he is knowingly seeing behind Mei's back.
CLANNAD, both the Visual Novel and the Anime Adaptation, usually is in a setting where there is No Antagonist, thus it's a daily life series. Every characters seems to always have more sympathetic qualities. However, the closest they can have for this trope is the whole soccer team, a team very full of Jerk Jock, that while Youhei Sunohara was being a jerk that they kicked him out, they were no better, with implications that they did enjoy making Sunohara's time in the club miserable, and when his sister Mei begged for them to put him back to club to re-ignite his passion in life, they instead chose to torment not only Mei but also Tomoya (and in the anime, also Nagisa, who tags along) for nothing but laughs with false promises that if they put up with it, they will let Youhei back. Of course, they refused to make good of the promise, to the point that when Youhei, usually the Butt-Monkey of the whole series, struck back at them for bullying his sister. It is saying something that in the same series, there's a group of Biker Gang/Yakuza... and they have a lot more moral standards (and a sympathetic story arc) than the club.
The elitist Mana community as a whole force the Norma to defend them from the invading DRAGONs and treat them as nothing more than Cannon Fodder, even sending a baby off to this fate. Created as decadent racists by the below-mentioned Embryo, it's telling that no one cares when their entire society falls apart due too lack of Mana.
The jealous Prince Julo Asuka Misurugi outs his sister, Angelise "Ange", as a Norma out of spite for them favoring her, and has Ange sent to Arzenal to fight DRAGONs in hopes of getting her killed so that he can become Emperor. After killing his own father, making personal attempts on Ange's life, and finally ordering the extermination of all Normas, Julio breaks down when cornered and tries begging for his own life, proving himself an utterly self-centered and pathetic man to the end.
Embryo subverts any intrigue he builds with his noble facade by displaying his depravity as a misogynistic scumbag who intends to kill everything, save women of his choosing for his personal harem. A sickening man, Embryo torments his enemies while viewing Ancient Humans as a race to be wiped out, and even repeatedly tries to force himself on Ange. A selfish megalomaniac and pathetic excuse for a god, Embryo cements himself alongside Julio as one of the show's most repulsive characters. His role might be an enforcement of the trope as he might be a subtle jab towards the Otaku lifestyle who liked to lavish praise towards their women of fancy (usually referred as 'waifu') and creating their own harem, but discarding them on a whim when there's another woman/waifu that got their attention. This, alongside his intentionally despicable role, made any intended misfortune or beatdown directed to him very cathartic to the audience.
The Death Mage Who Doesn't Want a Fourth Time: While most antagonists have at least one reason for the way they act, no justification is ever given to Hiroto Amamiya's unnamed uncle. Supposed to look after him after his parents died, instead he abused his nephew and denied him everything but the barest necessities, saying it was for "teaching him humility" and that everything was "too luxurious for someone like him". He was also a humongous Hypocrite who indulged in luxury after receiving the life insurance of his nephew. Nobody is sorry to find out he lost all his money and ended as a hobo on the streets who died a meaningless death.
Death Note: While Light Yagami is too fun to watch to count (at least at the start), the same cannot be said of these characters:
Kyosuke Higuchi. He's the only one of the Kiras to evade Draco in Leather Pants status, as he's an extremely sleazy Corrupt Corporate Executive and a Pointy-Haired Boss both literally and figuratively, and his character design is noticeably less attractive than that of his coworkers. He also threatens to rape Misa. It comes as little surprise that the audience is glad when he's the first person killed upon Light regaining his memories of the Death Note, after he reveals its existence to the police.
Demegawa is possibly the most loathed character in the show, in and out of universe. You know you're bad when the Kira Task Force basically says that you deserved to be killed by him.
Dokuhime: The repellant Queen and her assistant Mandrake create the "poisoned princesses" as a means to gain power by killing political rivals and making as much money as possible for themselves. Caring for no one else, the duo have the princesses who fail their objectives executed, and when their crimes bring an enemy army upon their capital city, can only think of their own safety in the chaos.
Dropkick on My Devil: The titular character Jashin is deliberately made to be hated. She is arrogant, always thinking that she could take on anyone even though they'd be leagues above her; she bullies characters like Pekola for being an angel or Kori because of her being a "lowly" demon; she manipulates her best friend Medusa into providing her with money and refers to her as her "personal ATM" often; and she acts like a jerk who has no qualms with eating all of the meat meant for a hot pot party or stealing a child's toy by crudely putting it in her mouth.
The Diclonius Research Facility as a whole are the infamously cruel antagonist faction. A secret organization of scientists and military, they are the ones responsible for carrying out horrific experiments on the Diclonii. Though their mission is to protect humanity from the Diclonii, they often go beyond what seems necessary, from torturing the Diclonii subjects to using some as weapons to capture escapees- and it is heavily indicated that their abusive treatment of the Diclonii is at least partly responsible for them going insane and seeking revenge against humanity.
Director Kakuzawa is the primary antagonist and a genocidal rapist with a God complex. He is the man who runs the Diclonius research facility, which performs horrific experiments on Lucy and the other Diclonii. Though seemingly doing this to protect humans from the Diclonii, in truth he plans to use the Diclonii as a Master Race to exterminate humanity and replace them, with himself at the top. He is seen committing horrible crimes, from molesting his subordinate Shirakawa to capturing and impregnating Lucy's mother so he could force Lucy to mate with her brother.
Tomoo was the leader of a gang of orphanage bullies who tormented Kaede, the original personality of Lucy. His most heinous act was when he forced her to watch him murder her loyal puppy. He ends up dying shortly afterwards when she makes his head explode, but his cruelty remains imprinted on her psyche.
Mayu's stepfather is a child molester who loved to sexually humiliate her. Mayu's biological mother, meanwhile, did nothing to help her daughter, despite knowing full well what she was going through, because she saw her own daughter as a sexual competitor for her new husband's attention, and willingly gives up custody of Mayu without protest. It's easy to see why Mayu ran away from them in the first place. The fact they they remain unpunished for their actions makes them all the more loathsome.
The unnamed hitman known only as the Unknown Man is the single most depraved character in the manga. A sadistic Psycho for Hire, the hitman amputates the lower half of a child Diclonius and rapes her before later killing her, and assaults Nana and Mayu with full intent to rape the latter. When Bando arrives on the scene to save Mayu, the hitman shows himself to be a pathetic, sniveling coward, and runs out of the house before finally being killed by Lucy during a later confrontation between her and Bando.
Jackal is a ruthless leader who lives by the rule "If you want to survive in this world, don't pick a fight with someone stronger than you". Overhearing about the rich water supply from a child from a village, who asks Kenshiro for help in digging it up, Jackal sets on his path to take away this water from the village, but not before killing his two henchmen for picking a fight with Kenshiro and disobeying his rule about not picking a fight with someone stronger than you. After Kenshiro left the village, which consisted of an old woman and a group of children. After Kenshiro left the village, Jackal attacked the village with his gang and upon taking over tries to force an old woman to watch as he prepares to hang all the children of the village. When Kenshiro started hunting him down for his crimes, Jackal has no problems sacrificing his own gang to ensure his own survival.
Jagi is a Third of Hokuto Brothers and the only evil one among them. After being humiliated by Kenshiro and left crippled for trying to force Kenshiro into abandoning his position of the successor of Hokuto Shinken, Jagi swears to make Kenshiro suffer. Vowing revenge, Jagi manipulated Shin into kidnapping Kenshiro's fiancee, Yuria, from him and later Jagi becomes the leader of a gang of slavers, who at one point occupied a village and started bullying, torturing and killing several men, women, and children for no reason.
Amiba is an arrogant martial arts scientist who claims that he could easily master any martial art style in record time. Coming to a Village of Miracles several years ago, Amiba decided to master the art of Hokuto No Ken and when he tried to cure an old man's broken leg, he hurt him instead, then Toki rushed to help this old man, accidentally slapping Amiba's face, angry Amiba tries to attack Toki, but Toki easily stopes him and put fear in him in front of everybody. Humiliated Amiba vowed revenge on Toki. When Toki was captured by Raoh, Amiba took the appearance of Toki, came to his village and started to experiment on men, women, and children by pressing their various pressure points and seeing what will happen, resulted in many agonizing deaths.
Jakoh is the chancellor of the Celestial Empire who ruled the empire through the young Celestial Emperor Rui and manipulating Falco, his adoptive brother, into doing his dirty work by using her as a hostage, keeping her in such unpleasant conditions that she eventually went blind. The Celestial Empire was exceptionally repressive, rewarding the wealthy and brutalizing the poor whilst punishing dissent with death. Eventually, Jakoh's paranoia led him to order Falco to obliterate the nations formed under the Hokuto Shinken and Nanto Seiken martial art schools. After an encountering with Raoh, Jakoh was left with an intense fear of the dark and thus he worked thousands of slaves to death in keeping the capital of the Celestial Empire under constant light.
While the series has plenty of Jerkass students and arrogant rivals at the elite culinary academy Tootsuki, Subaru Mimasaka's methodology and tactics against his competitors, by copying their dishes to perfection and making improvements to it until his version of the dish is one step ahead in every category, is criticized by his peers and competition judges. What fuels for readers is Mimasaka besting the series' leading Ensemble Dark Horse during the Tournament Arc from out of nowhere, with a dash of Diabolus ex Machina. However, he eventually pulls a HeelFace Turn and uses his copying skills to help Soma during the Moon Banquet Festival.
On the other hand, Elite 10 number 9 Etsuya Eizan, the one who pushed Mimasaka into his worst ways is even worse. Not only he's openly a Corrupt Corporate Executive, he goes as far as hiring corrupt judges to win Shokugekis, and spends most of his match with Soma trying to break his spirit, and even sends his thugs to harass Soma's friends. And in his match against Takumi, he deliberately uses an ingredient that will clash with Takumi's own, so its incredibly cathartic watching Takumi out gambit him completely by anticipating his dirty tactic and using it in his favor, utterly crushing him.
Azami Nakiri manages to be even worse due to his record of physically abusing Erina into adopting his mindset on cooking, which caused the rest of the Nakiris to disown him. Unfortunately, he ends up returning due to his allies in the Elite 10, who appoint him as headmaster. He then turns the tough-but-fair academy into a place where students are forced to imitate his chosen elites rather than polish their own style of cooking. Not to mention he also held Jun's research hostage in order to force Akira to serve Central. Anyone who opposes him has to deal with rigged exams, corrupt Shokugeki judges, etc, though it's not confirmed if he's endorsing his followers' foul play.
From Fruits Basket there are a number of Abusive Parents in the Sohma family, who aren't above using their Curse Zodiac children for profit, blaming them for the suicide of their spouse despite being partly at fault, and even outright abandoning them because of their curse. However, the worst of them is Ren Sohma, the mother of Akito Sohma. She is the cause of many of Akito's issue, between raising her as a man and telling her how worthless she is, which results in the latter abusing other members of the Big, Screwed-Up Family as head of the family. Ren's reason? Jealousy for her husband loving their daughter more than her. She even planned to abort Akito if her father, Akira, didn't agree to raising their daughter as a man.
We also have Tohru's unpleasant paternal relatives, with the exception of her grandfather. When she moves back after renovations were complete, they treat Tohru like absolute crap, berating her for very little thing she did, even though she was nothing less than polite to them. Granted, they didn't agree to relationship between her parents, as they mostly disliked that her father, Katsuya, married her mother, Kyoko, who was a delinquent in her youth, but that's no reason to assume Tohru is just as bad, and then accuse her of "shacking up" with Kyo, Yuki, and Shigure, after they hire a detective agency to investigate the poor girl. They even had enough goll to mock her Katsuya, and presumably Kyoko, at their respective funerals.
Basque Grand in contrast to his more noble manga counterpart, could always be trusted to carry out Amestris' army dirty work (basically every war crime in the book and whatever unethical experiments the Government Conspiracy would conduct) and never lost an opportunity to pull rank to hinder the Elric brothers and rub it in their face purely out of spite. Despite being an unambiguously villainous character whose own physical prowess seemed to guarantee an epic fight against either the bros or Mustang, he never manages to antagonise the heroes further than that as he gets brutally murdered by Scar in a scene which appropriately mirrors Tucker's death from the manga.
Being petty, selfish and abusive, Dante represents the worst of humanity and is clearly not meant to be liked. With the tentative exception of Pride, all of her Homunculus minions either hate or fear her, with even Envy seeing her less as a mother and more as a means to obtaining his vengeance against his father and both of the Elrics are repulsed by her cruelty.
Shou Tucker, though an extremely minor villain, is the only character to go to hell during the author's "In Memoriam" omakes, and for good reason. He subjects his wife, then his five-year-old daughter and her Big Friendly Dog, to a Fate Worse than Death as chimeras both to keep his job and For Science!, driving the first one to suicide by starvation. Even the financial justification he gives for his actions just comes across as the worst kind of pathetic. When under house arrest, all he does is to whine about how no one understands him. Remorselessly depraved behind his mild exterior and lacking the redeeming qualities of the major villains, Shou Tucker's one-shot appearance leaves a massive impact throughout the series.
The Gold-Toothed Doctor lacks the redeeming qualities of the Homunculi. He is the only one of their human allies who knows Father's plans to cause The End of the World as We Know It, something he doesn't seem to care about. Responsible for the creation of Wrath, he killed the first twelve candidates in painful experiments before turning the remaining men into expendable mindless Elite Mooks. He not only slits Riza's throat in an attempt to force a Sadistic Choice on Roy but also disgusts both Roy and Zampano with his smug belief that the candidates must have been grateful to him for taking them in, feeding them, educating them and giving them the meaning of existence. No tear is shed when Pride and Wrath use him as an alchemic resource, leaving him a hideous ball of flesh.
General Raven and his associates in Central Command are a corrupt group of military officials who aid the Homunculi's plans to usurp humanity in a bid to grant themselves immortality. These include instigating multiple civil wars to complete Father's Transmutation circle, such as the Ishvalan genocide. When Raven arrives at Fort Briggs to cover up Sloth's attack, he tries to persuade Major General Armstrong to join them while leaving several of her troops for dead. Much later, during Roy Mustang's coup of Central City, General Clemin callously writes off the Fuhrer's wife as expendable when she's taken hostage. Central Command oversees the creation of the Immortal Legion, an army of tormented monstrosities created from Philosopher's Stones. While claiming to be making a new, better world, the Central Commanders' utter lack of remorse for their crimes makes it abundantly clear they only care about their own supposed entitlement to eternal life. It is incredibly satisfying when the Major General gets done playing tit-for-tat with Raven's vile seductions and promptly reduces him to foundation via sword stab into cement.
Fushigi Yugi: The Emperor of Kutou is a vile, sleazy, Smug Snake who commits genocide on peaceful tribes. Also a rapist and pedophile, he violates the youthful Nakago, causing his Start of Darkness. While most other villains are given levels of tragedy and catharsis, there is no individual who stands more loathed by everyone who knows him than the emperor, with Nakago plotting his death for years.
Gate has its own version of Joffrey, Zorzal El Caesar — and he's every bit as depraved as his Western counterpart. The little turd exists only to show the worst traits of the Empire.
Lord Sergei the 4th Sneak is the terrorist leader allied with the AI Oberon. A misogynist and misanthrope, Sneak hates the woman-run society and plays both the government and the terrorists to destroy it. Sneak is also abusive to his subordinates, most of whom are women, and is uncaring if they die, getting many of them killed in suicide missions and personally killing one. Utterly obsessed with perfection, Sneak is a narcissist who orchestrates every death in the plot to Kill All Humans and replace them with a perfect new race.
Captain Jean Gedoo/Gedoux is a Psychopathic Manchild who represents the corruption within the government. Ordered to capture the Strain crew heroines, Jean hounds them, abuses his subordinate, and disobeys orders by trying to kill the Strain crew to get at his rival Mario. When his subordinate accidentally wipes out nearly their whole fleet, Jean blames her for his own recklessness and takes the opportunity to make himself the new commander. He then gloats about killing General Natalie, a dear friend of Mario's, and ultimately gets them both killed.
Despite their brief screentime, CIA agents Suzuki Sato and Tanaka Watanabe stand out as particularly detestable. They manipulate Section 9 in an attempt to cover up a brutal war crime without any moral qualms or empathy and later attempt to help Kazundo Gohda, who has caused multiple murders and atrocities, defect and evade justice for his crimes. Once the true nature of the agents emerges, everyone in Section 9 is disgusted at them, with Batou punching Sato in rage and later insulting Watanabe the next time they meet.
Kazundo Gouda, the head of the Japanese Cabinet Intelligence Service and the mastermind behind the Individual Eleven, is a truly loathsome man. Despite his status as a very powerful bureaucrat, Gouda desires even greater power and will stop to any moral low to gain it. Devoid of charisma or empathy, Gouda acts rude and condescending to his peers despite his own mediocre skills, manipulates both the government and the refugees for his own ends, and directly causes multiple mass murders and a coup attempt just to satiate his ego. Even before the full scale of his atrocities are revealed, the members of Section 9 instantly dislike and distrust him, with Batou taking great pleasure in making Gouda scream in terror by grabbing him while jumping from a helicopter. Once Gouda's crimes are revealed, Section 9 are repulsed by his actions and become openly opposed to him.
By the time of Der Film, Tsuji Kota, the MEXT official who ordered Oarai Academy to be shut down also counts. At the time of his introduction in the anime, general consensus was that he was just doing his job, but the idea that he was anything close to a Reasonable Authority Figure faded in the movie, when he went back on his (non-written) promise. He did his utmost to try to prevent the students from doing anything, first by threatening to fire the employees working at the school if the girls protested, and later, after being forced into allowing the girls another chance to win for their school, forced them to fight the professional University Strengthened Team in an 8 on 30 annihilation match, while also allowing the UST significantly better weapons than most of the other teams could manage. By comparison, the actual leader of the University Strengthened Team (the team Oarai must defeat to remain open) is a sympathetic character who becomes friends with the protagonist. And the above mentioned Shiho Nishizumi is appalled by his actionsfor the aforementioned closing of Oarai Academy.
The Goblins are an Always Chaotic Evil race that exist to make other people's lives as miserable as possible. They have no sympathetic or redeeming qualities in the slightest, and will take advantage of anyone who shows them mercy. They kill every non-goblin they get a hold of and will rape any woman they capture. For every Kick the Dog moment they commit, you're going to want the Goblin Slayer to kill them as brutally as possible.
The Rhea Scout presents himself as a cheerful adventurer, but it's quickly revealed during his interview by Guild Girl that he was hording loot from his party, who are in desperate need of money, not just for good equipment, but also to provide for their families, making it clear he cared little for his comrades. Additionally, he secretly lusts after Guild Girl. When things turn sour for him during the interview, he thought about attacking Guild Girl, but only stops himself when he realizes that Goblin Slayer is in the room with them, and wouldn't have hesitate to kill him if he went through with it. He later joins forces with Dark Elf, just so he can take revenge on Goblin Slayer and Guild Girl for outing him as a thief, despite it being his own doing. He dies messily for his efforts, courtesy of Goblin Slayer. For an added bonus, he has a near similar mindset to a goblin, given his greed, lust, and vengeful nature.
Mr. Kobe, the Kobe family patriarch who is Shio and Asahi's father and a major Greater-Scope Villain, stands out as a parental abuser who even Satou's aunt pales in comparison to. An alcoholic, he spares no love for his wife Yuuna and children, beating them frequently and using them to fuel his unhealthy habits. A flashback would later reveal that he also raped his future wife because she accidentally pushed him, celebrated the death of his own father because it left him with a big inheritance, left his wife and son, and only came back after spending all his money. It is no wonder that Yuuna ran away with Shio, and Asahi rejoiced when he died. A truly nightmarish abuser, Mr. Kobe undoubtedly deserves to be called a demon by Asahi.
Hideout: Miki Kirishima is Seichi's selfish wife. She blamed her husband for the death of their son, Jun, only to later reveal that she never wanted a child to begin with when Seichi suggested that they start over with a new child. She later tried to leave her husband to be devoured by a monster in a cave out of spite.
Hayate the Combat Butler has Hayate's father and mother, an unemployed man and compulsive gambler respetively, who leech off their son when he has to take jobs to earn money to support his life and sell his organs to the Yakuza to pay off their debts. When they make their appearance in the final Story Arc, they sabotage Hayate's job as Nagi's butler both for the fun of ruining the former's life and to get latter's money. This makes it so satisfying when they finally get their well-deserved punishment.
Hellsing: Zorin Blitz is an incompetent, vile military commander in contrast to the despicable but brilliant Major and cements her loathsomeness in her callous mistreatment of her men and use of her psychic abilities to leave her enemies in mental anguish and helpless as she slashes through swathes of the Wild Geese, completely lacking in any intelligence or admirable traits to offset her nature.
High School D×D has many antagonists, but these particular four characters earn the honor of being the most loathsome:
Raynare, the Starter Villain and Token Motivational Nemesis, gets close to Issei only so she can murder him and steal his Sacred Gear. She later kills Asia Argento and steals her Sacred Gear right in front of him, continuing to toy with his feelings. She's not even liked by her own allies, and in the end, her Stupid Evil tendencies get her taken down by Issei as he leaves her to be finished off by his love interest Rias Gremory.
Diodora Astaroth, an associate of the Khaos Brigade, was the Devil that Asia healed, intentionally getting her excommunicated from the church and planned her death so he could her resurrect her as part of his peerage. He wants to make Asia a part of his harem, seeing her only as a sex toy to play with. His disregard for her earns him the ire of Issei's peerage, and his well-deserved beatdown.
Abyss Rage Dragon: Níðhǫggr, kidnaps Issei's parents, uses them as hostages to beat the crap out of Ophis, and then fantasizes about how good the former couple will taste in front of their son while fondly reminiscing over his beatdown on the latter. His actions are so abhorrent and cowardly that fellow Evil Dragon Crom Cruach turns on him.
Tonpa of Hunter × Hunter. A Fat Bastard who intentionally sets back the main characters and other participants of the Hunter exams for no other reason than to see them fail and does it with absolutely sadistic glee, to the point that he's nicknamed "Tonpa the rookie crusher."
Michiko & Hatchin: Shinsuke Rodriguez is a vicious gangster under Satoshi Batista but lacks any of his boss' nobility, charm or intelligence. After betraying Satoshi, Shinsuke spends the rest of the series cowardly running for his life and when finally drawn out by Satoshi, has his men easily dispatched and pathetically dies crying and begging for his life.
Naraku of InuYasha is completely devoid of redeeming qualities. He's nothing but a Dirty Coward and a Smug Super who commits all manner of horrible atrocities and goes out of his way to ruin the lives of everyone he comes in contact with simply because he can. He's this In-Universe as well; literally every named character, including several of his own mooks, which are directly spawned from his own flesh, despises him and wants him dead.
Iron Ladies: Oh boy, quite literally every antagonist in the story so far is an irredeemable scumbag willing to abuse their power and kill thousands of innocent people over whatever reason they can think of. Examples include letting thousands of soldiers die in battle out of spite for their commanding officer wrecking your car, holding the little brother of a woman hostage to force her to murder people for the amusement of the rich and corrupt, treating a sentient race as cattle and shooting them for sport and using hundreds of thousands of people as fuel for their war machines. Luckily most of these assholes get what's coming to them, usually in the shape of a Cruel and Unusual Death delivered by the heroes.
Kaguya's father. He drags her a quarter of the way across Japan (causing her to miss out on a chance to hang out with her friends), and barely even acknowledges her presence when she shows up. This is immediately followed by the reveal that he has never given her even the most basic form of parental affection. Then he forbids her from attending the fireworks festival, sending her into a Heroic BSoD. And all of this is in his first appearance.
Ogino. He was cheating on his girlfriend, and tried to buy Ishigami's silence when he found out (by offering to let him sleep with said girlfriend). Then he pulled a Deliberate Injury Gambit, making it look like Ishigami was a Stalker with a Crush.
Kill la Kill: Ragyo Kiryuin is a disgusting megalomaniac who seeks to guide the end of humanity. With a slew of crimes in all of her scenes, Ragyo goes from treating her daughters as science experiments, to outright molesting them, to killing anyone who stands in her way including her own husband. Subverting the draw to the grandiose nature of her scheme and her campy style with her horrific personal crimes, Ragyo solidifies herself as one of the most repulsive characters in anime history.
In Demon Slayer: Kimetsu no Yaiba, there are many demons who committed heinous acts, but a majority of them had very tragic lives as humans, making them sympathetic and pitiful creatures. This does not apply to Zenitsu's senior and former demon slayer, Kaigaku. From stealing money from his fellow orphans and treating Zenitsu like garbage to selling out his caretaker, Himejima, and the other orphans to a demon in exchange for his own life, it doesn't stop there. Once he's at the mercy of Kokushibo and begged for his life, he chose the cowardly option to become a demon rather than die an honorable death in battle. Both he and Zenitsu's master committed seppuku upon learn this news. When Zenitsu yelled at him furiously for causing the death of their master, he simply insulted his master for being a senile old fool and was glad that he killed himself. A cowardly, cold-hearted bully who has done nothing but used and sold everyone he knew to save his slimy hide, he is one of the more hated demons among this series.
In Kotoura-san both of Haruka's parents are nearly universally hated by fans due to their (mis)treatment of Haruka. Considering they have no redeeming qualities, this is intended. The mom Kumiko, while is a Jerkass who did disown her daughter due to revealing her affair and considered to send her to a mental ward, paid the price for her own actions and came to regret the disownment; she really did try to help Haruka but failed. The father? He's a Karma Houdini.
Quattro, a Smug Snake who at her best, enjoys making fun of her younger sisters and at her worst, has absolutely no regard for human life and thinks those who do so are foolish, and this in a series with only a couple actually evil characters out of a massive cast. That she is such a ratbastard definitely makes her Villainous Breakdown all the sweeter when Nanoha blasts the crap out of her from across an entire space ship. Yes, even through the walls.
Back in the days, Precia Testarossa was made with this trope in mind. She was horrifically abusive to Fate, treats her as nothing but a tool that she despises and all around a horrid mother, that she'll shoot right up as one of the worst mothers ever and an utterly unsympathetic person. However, once the series gained popularity, especially also Fate's popularity, they decided to tone this down, turning Precia into a more sympathetic Tragic VillainJerkass Woobie, and around the same time, the fans were introduced to the Huckebein family, which is much more reviledagainst the creator's intents, and the INNOCENT manga revamps Precia into a doting mother. Safe to say, at that point, Precia no longer qualifies as this trope. (It also helps that there are other anime mother characters that picked up her left-behind essence of 'worst mother ever' more permanently with no chance of being fixed to be sympathetic. Seeabove)
ViVid Strike! has the trio of bullies. Angered by Rinne's refusal to join their martial arts club (Rinne wants to go home and see her ailing grandfather), they bully her over a period of several months, culminating in destroying the tiepin Rinne got from her grandfather, breaking her phone and knocking her unconscious, preventing Rinne from seeing her grandfather before he dies. The next day, Rinne flies into a rage and brutally beats up the three. Immediately afterward, one of them lies to her brother and claims Rinne attacked her without any provocation, clearly intending to manipulate him into seeking revenge on Rinne.
Once Maxwell's true nature is revealed in Detonation, he easily becomes one of the most, if not the most, despicable villain in the Nanoha canon. Hell, unlike the majority of Nanoha villains, he doesn't even have a Freudian Excuse to justify his atrocities. He just caused death and destruction on a massive scale all for the flimsiest of reasons.
Metroid (Manga): Ridley, the Arch-Enemy of Samus Aran, is at his most despicable in this Origin Story. Instead of feeling remorse, Ridley relishes the fact he massacred the K-2L colony and killed Samus's mother, using these memories to mentally break Samus on their second encounter. Later on, he murders her adopted family, the Chozo, on Zebes at Mother Brain's command; all while beating up and mocking Samus for being a weak human. It becomes satisfying to see Samus kick Ridley's ass by the end of the manga, as well as the many encounters they'll have for the rest of the series.
Mobile Suit Gundam: Gihren Zabi, the de-facto dictator of Zeon, is the first main villain of the franchise and one of the most despicable. A cold man that underestimates his enemies, Gihren is the main responsible for the One Year War, leading to the death of the half of humanity. Turning his brother's funeral into a militarist speech, Gihren kills his own father alongside the General Revil to avoid an armistice. Confronted by his sister, Gihren is apathetic at her rage at the death of their father. A megalomaniac that uses a hypocrital rhetoric about liberating the Colonies while murdering their population, Gihren had plans to reduce the population of Earth to less than one billion to ensure his complete control over the Earth Sphere. The biggest mass murderer of the Universal Century, Gihren's tyrannical legacy haunted the Earth Sphere even beyond his death.
Muzuta Azrael is the leader of the terrorist hate group Blue Cosmos. Motivated for hatred against the Coordinators, Azrael uses his influences to ensure control over the Atlantic Federation and the Earth Alliance Forces. Having used Blue Cosmos to cause a accident that kills thousands of Coordinator civilians, Azrael embraces the radicalization of the war, intending to end the war with a genocidal attack towards the homeland of the Coordinators, without care for any of his allies and constantly abusing them, leading to his own death once the Captain of his ship betrays him. A genocidal bigot that used children and teenagers in experiments to enchance their combat skills, Azrael's actions continued haunting the Cosmic Era.
Al Da Flaga was an abusive parent that disinherited his own son, Mu La Flaga, for a grudge with his mother, seeing Mu as tainted for his mother's DNA. A narcissist that saw himself as a superior human, Al contacted the amoral scientist Ulen Hibiki and funded his investigation to clonate himself. Subjecting his clone to emotional abuse and traumatizing him, Al clonated himself again after discovering about the genetical defects of his clones. Dying in a fire caused for his first clone, said clone grew up as a misanthrope manipulator that saw himself as the embodiment of the failures of the world.
Ulen Hibiki is the biological father of Kira Yamato and Cagalli Yula Athha. A amoral scientist that wanted to create the Ultimate Coordinator, Ulen forced his own wife to uses their own embryos for the experiments without concern for her mental health, "allowing" her to have a daughter just to shut her. Having accepted funds from the above-mentioned Al Da Flaga, Ulen created rational clones to fulfill the wishes of a narcissist and realize more illegal experiments.
Lord Djbrill, the successor of Muzuta Azrael, is just as hateful as his predecessor but without any of his seemingly charismatic behavior or intelligence. Leader of the hate group Blue Cosmos, Djbrill takes advantage of the worldwide tragedy of the Colony Drop of Junius 7 to plunge Earth and the PLANTs into a new war with a nuclear attack in the colonies. Continuing the Extended Program and brainwashing Mu La Flaga, he unleashes the Destroy—piloted for one of the Extended—in Eurasia, destroying many cities. Firing the Requiem and personally killing a million of Coordinators, Djbrill congratulates himself. Cowardly abandoning his allies once things get hard while entertaining plans to rule the world, Djbrill is a pettygenocidal bully with the resources of a state, standing in sharp contrast to Durandal, his sympathetic and likable rival.
Yuna Roma Seiran is a noble of Orb who becomes Cagalli's fiancee due to an Arranged Marriage agreed to in the past. Antagonizing his fiancee and mistrusting her allies, Yuna manipulates Cagalli into accepting an alliance with the Earth Alliance despite her unwillingness until she leaves Orb to join to the Three Ship Alliance. Attempting to win a reputation within the Earth Alliance, Yuna constantly sacrifices his own forces in vain attempts while blaming his failures on others, unable to admit that Cagalli abandoned him for his cowardice and impulsivity. Giving refuge to the above-mentioned Djbrill while pathetically trying to hide it, the Seiran's family causes Orb to be invaded by ZAFT. Arrested for treason after believing that Cagalli would save him, Yuna dies trying to escape from a battle that he caused.
Bask Om, the second-in-command of the Titans, is introduced beating war-hero Bright Noah for opposing a dangerous order. Favoring brutality in his army, Bask takes Kamille Bidan's mother as a hostage to retrieve the Gundam MK-II before lying to his soldier to get him to shoot at her capsule, killing her in front of her son. Using the Titans to commit multiple atrocities against them, the Titans use nerve gas against whole space colonies—killing all of their inhabitants—and experiment on teenagers to create Cyber Newtypes, unstable soldiers in semi-perpetual agony. Murderous, hateful and violent, Bask's brutality makes him stand out as the worst of the leadership of the Titans, leading to their being outlawed and eventual downfall.
Yazan Gable is a sadistic warmonger who joined the Titans to be able to kill people legally. Uncaring about the rules of war, he participates in an attempted Colony Drop on a populated city and later, Yazan arranges the death of an officer trying to prevent unnecessary bloodshed. He alsokills many heroes from the Anti Earth Union Group—whom he considers "made of woman and children"—and even kills his own ally while showing no concern at the deaths of his most friendly subordinates. Defeated by Kamille, Yazan survives the battle and several days later, he persuades a group of poor teenagers to infiltrate the Argama to steal the Zeta Gundam, taking the opportunity to kill another AEUG soldier before failing. Pathetically trying several attempts to steal the Zeta Gundam, Yazan joins Neo Zeon's soldiers, betraying the very purpose of the Titans. A beast in the skin of a man, Yazan earns the hatred of both Kamille and Judeau. The audience however, dosen't seem to share in their hatred of him, and Yazan is generally ranked as one of the most popular villains from the Universal Century time period.
Kamille's father Franklin Bidan is a negligent and abusive workaholic who cheats on his wife. Taken as a hostage by the Titans and saved by the AEUG, Franklin betrays them and tries to escape back to the Titans even after they killed his own wife, wanting to continue his work creating Mobile Suits and being willing to shoot at his own son. A man without concern for anything or anyone but his work, his only passion in life, Franklin is the main reason behind Kamille's notorious anger issues.
The Monster Duchess and Contract Princess has Leslie's biological family, the Sperado clan. Leslie's mother and father abuse and mistreat her for years, under the impression that children with white hair such as Leslie are inferior to the predominantly blonde haired, green eyed family members, openly favoring her older sister Eli over her. Eli makes Leslie do all her homework for her and flaunts her status as the favorite child every chance she gets, and when Leslie turns 12, they try to perform a ceremony that involves throwing her into a fiery pit so her dark magic can be transferred over to Eli, maintaining the cruel tradition that the Sperados have upheld in secret for nearly a thousand years. Leslie does everything she can to get the hell away from them, but even after she managed to find happiness, her biological family still intends on getting her back and using her for their own ends. Outside of abusing Leslie her entire life, they all believe that the best things in life are theirs by birthright, and if what they want is in the possession of others, then they're in the right to try and seize it for themselves, no matter what it takes. They never, ever take responsibility for their actions. While waiting for whatever standards they use to set for a proper sacrifice, they use their intended victim as a scapegoat to push the blame for the consequences of their misdeeds upon. It can be safe to say that they're the most hated characters in the whole manhwa and it is incredibly satisfying to see Marquis Sperado in particular finally get his ass handed to him by all the people he used, abused, and tried to outright destroy. And their abuse doesn't end at just Leslie: Every single child who was ever born with white hair and purple eyes, or even blood relatives who don't meet their impossible standards, like one of Travis's younger brothers, are treated like utter shit solely for existing.
At first, there was almost nothing redeemable about Endeavor. He dedicated his life to a petty One Sided Rivalry against #1 Hero, All Might, destroyed the family life he had with his wife and children, cared more about winning than being a hero, and has been putting Shoto into a cruel physically and emotionally abusive training ever since the boy was four or five. The closest thing he has to a redeemable quality is his concern for Shoto holding back in battle, but even that was for his own personal gain. Even Kohei Horikoshi calls him a shitty dad. Outside of that, he's shown to be an asshole on the job, being a hero in the most technical of terms. He's very cold to fellow heroes and the people he's trying to save.
Subverted, however, he has a Jerkass Realization and begins changing. Furthermore, his relationship with his wife is re-examined briefly when it's revealed the reason he chose her was to balance his shortcomings. She herself comments on how he had her favorite flowers delivered to her, despite her only mentioning once. Additionally, his concern for Shoto's restraint with his power becomes more prominent when it's shown how damaging Enji's own Quirk is to himself as well as to his firstborn, who had stronger flames, but a weaker constitution. Shoto is uninhibited by this weakness because of his ice, but without using his fire, he'd succumb to similar cold-related issues like frostbite. Additionally, his concern becomes more justified given the stronger foes that are coming and Shoto's own losses forcing him to having to improve.
Muscular, a villain who joins the League of Villains and helps them attack the training camp, endangering the lives of teenage heroes in training. As if this wasn't bad enough, he also murdered the Water Hose heroes (Kota's parents), For the Evulz, and tries to kill Kota before Midoriya intervenes. While some of the other League of Villains members have sympathetic traits, Muscular is nothing more than a psychotic murderer.
Overhaul is a ruthless Yakuza boss who abuses his young ward, Eri, draining her blood to make Quirk-destroying bullets, reassembling her body when she runs out of blood to give, and calling her a cursed being born to destroy people. The ordeal has traumatized her so much that even after his defeat, she doesn't know how to smile. He treats his subordinates no better, using one as a meat shield against Shigaraki, killing another for failure, and forcing two to become part of his One-Winged Angel forms. He has Nemoto use a Quirk-destroying bullet on Mirio, destroying the Nice Guy's promising career as a hero. Later chapters somewhat downplay this, as they reveal that he's a Well-Intentioned Extremist who wants his syndicate back to power in hopes of repaying his old boss, but even then, he put his boss in a coma in order to do so because his boss was against his methods. The Laser-Guided Karma hits him when Shigaraki and Mr. Compress destroy his arms to avenge Magne's death and the loss of Compress' left arm.
Mizuki is the opening villain of the series. He takes advantage of Naruto's goal to be a ninja and reveals he's the container for the Kyuubi, while trying to kill fan-favorite Iruka. Brought back in a filler arc, he reveals that he had always been The Sociopath, hated his "friend" Iruka all along and was just using him, was secretly working for the then-Big Bad Orochimaru the whole time, was a Bastard Boyfriend to his Love Martyr fiance, has outright killed comrades in the past when convenient, and hates ramen.
Hidan is a cruel psychopath and member of a Religion of Evil, who worships violence and death, and sees mercy as a sin. He slaughtered his village simply because he was disgusted with their pacifistic way of life, and performed gruesome rituals to attain immortality for himself. Unlike the rest of the Akatsuki, he has no real Freudian Excuse for his actions. Even the series itself seems to posit him as the most unsympathetic major villain, as he's exempt from the Cycle of RevengeAesop pervading the storyline with his Fate Worse than Death.
Kaguya and Black Zetsu have taken over this role after The Reveal that they the ones who truly responsible for every bad thing that's ever happened in the Naruto universe.
Yashiro Uchiha, a minor member of the Uchiha clan who showed up in the flashback arc leading up to the massacre, becomes this in Itachi's Story. He's a Jerkass who has little patience for Itachi's idealism, and while not the mastermind of the Uchiha plot for a coup, he was one of the members pushing Fugaku to rebel, despite warnings that it couldn't possibly end well for the clan or the village. When Itachi carries out the massacre, Yashirobegs for his life, and even dishonestly claims he'll call off the coup if he's spared. While Itachi is broken by slaughtering the clan, particularly killing his girlfriend, his parents (who Face Death with Dignity) and one of Danzo's subordinatesnote One of two twins who impersonated a dead Uchiha and had to be killed to tie up loose ends he loathes Yashiro and feels no guilt about subjecting the man to aCruel and Unusual Deathby torturing him withTsukuyomi, then decapitating him.
Hisashi Saegusa was Niina Sugawara's acting teacher who was responsible for warping her mind. A pedophile, he molested Niina when she first enrolled at his school and psychologically manipulated her for years into believing she was in love with him. When she left, Hisashi continues to conduct mind games on his young female students taking perverse satisfaction in warping their minds to get off on their innocence.
Satoshi Sugimoto was a narcissistic boy who decides to date Momoko Sudo, ignorant of him making her feel uncomfortable. When she explodes at him at the culture festival at the school, he tries to force her to apologize for embarrassing him in front of his friends and calls her a crazy slut upon realizing that she was never in love with him.
Spandam from the Enies Lobby arc. Rob Lucci and the other members of CP9 are too cool/quirky to really hate and this also applies to many other One Piece villains, but Spandam's main quirk is how despicable, incompetent, and weak he is in spite of his inflated view of himself. He eventually gets the snot slapped out of him god-knows-how-many times by his former prisoner, Robin. And given his treatment of her and general personality, he deserves every single one of them. And the viewer likely won't be feeling much in the way of sympathy when she later snaps his spine.
Admiral Akainu. He's such a loathsome character with an inflated view of his own righteousness that he makes even other Marines disgusted. His actions at Marineford, especially, cement him as a hated character, both in-universe and to the reader. Killing Ace, Luffy's big brother, was just the start of his atrocities. After he took over as Fleet Admiral to fill the Evil Power Vacuum, several Marines quit in disgust rather than have anything to do with Akainu anymore, including former Fleet Admiral Sengoku and Luffy's grandfather.
Every scene the World Nobles appear in just makes viewers hate them even more. Besides Doflamingo's family, none of them ever showed any redeeming quality. They just keep doing horrible things, confident that their status lets them do whatever they want. They buy and kidnap people to make them slaves, shoot people just for not kneeling before them, make slaves eat Devil Fruits just for their own sick entertainment and much worse. Many characters suffered under them including Fisher Tiger, Hancock and her sisters and Koala, not to mention one of them killed Luffy's brother Sabo just for passing in front of their ship. Well, almost killed him. It's not revealed to Luffy until years later that Sabo managed to survive the attack and joined a resistance group. Eustass Kid, himself a Psychopathic Manchild, claims that even the worst pirates are absolutely nothing compared to the World Nobles. Because of their horrible, horrible actions, it's a moment of celebration when Luffy punched Charloss in the face and no Admiral went after him for it.
The Donquixiote Pirates comes off as weird and quirky, they're too much funny to hate. Other than Dofflamingo, it's Diamante who's the most hated character in the Dressrosa Arc. Being a titled "hero", is a sociopath that loves to play dirty, gloats about killing the loved ones of the families in front of him, and has no likability throughout the manga and anime. It was a good thing his bragging came to his downfall.
Charlotte Flampe got a lot of hatred from viewers during the Whole Cake Island Arc. She is seen as nothing but a bratty, annoying and sadistic girl who interferes with Luffy and Katakuri's fight, and shoots Luffy with a blowgun in order to try and earn her older brother's praise. However when Katakuri becomes furious at her for interfering with his fight and inflicts a wound on himself and shows his mouth to make the fight fair on Luffy, Flampe immediately turns on her brother, laughing and spitting on him because of his mouth (Something that genuinely upsets Katakuri who cares very deeply for his family) and even has her subordinates take photos of his mouth and threatens to show them to everyone. It's no surprise that many fans cheered when she was knocked out by the combine force of Luffy and Katakuri's Conquerer's Haki clashing with each other.
You can't hate Yume Hasegawa of Pupa since she was a monster who escaped the laboratory after being experimented on for thirty odd years. You can despise Shiro's adoptive father Genjurou Iamari due to him perversely torturing Shiro as a young boy, implanting in his mind that abuse was the purest form of love.
Revolutionary Girl Utena: Akio Ohtori convinces his 14-year-old student and housemate, Utena Tenjou, that he's a rich, wise gentleman and the only Reasonable Authority Figure in Ohtori Academy. The truth is that, as "End of the World", he runs the Rose Duels that passes his sister, Anthy Himemiya, around as the docile Rose Bride to the victors, abusive or otherwise. He claims to be the only one who can love Anthy and save her from taking the Swords of Hate in his place as a witch, but he has no qualms about raping her during their weekly tryst, letting the Swords stab her, throwing her as a meat shield against Utena, or ordering her to stab Utena in the back literally. He only sees his fiancée, Kanae, as a means to stay in power as the acting chairman, sleeping with her mother and implicitly disposing of her in secret. He seduces the blissfully unaware Utena, with their age differences making her consent for their sex questionable at best. When confronted, he offers Utena a chance to become his princess and leave Anthy in distress, saying that she shouldn't fight because "dresses don't go with swords". He refuses to take responsibility for his actions, going as far as to tell Utena that she has compromised her morals by sleeping with an engaged man and that Anthy enjoys being a witch.
Princess Malty Melromarc/Myne Sophia, and by extension her true self Medea Pideth Machina, is the despicable Big Bad. She starts the series by betraying Naofumi by making a False Rape Accusation, then ruins the lives of anyone she comes in contact with, from betraying her own allies when she sees no more use for them or conspiring to kill her younger sister Melty because she gave her a mild criticism about who's the heir. Any attempt to correct her behavior results in her committing a bigger atrocity. Even after her mother exposes Malty's crimes and strips her of her royal title, she pursues Naofumi, and despite her tragic demise, Malty is still remembered as a wicked tyrant. In the webnovel, it is revealed that Medea regularly destroy worlds for her amusement, and plots to destroy the entire universe, cementing her sociopathy and irredeemability.
Motoyasu is the most despicable of the Four Heroes. Motoyasu is so egotistical that he can never admit when he's wrong. As deeply flawed as they are, Ren and Itsuki are still capable of skepticism, even standing up for Naofumi when they realize he's been wronged despite not liking him. Motoyasu believes his own personal narrative that he's the most powerful and virtuous of the Four Heroes, while Naofumi is "the Devil of the Shield" whose every action is pure evil. Motoyasu believes this no matter how much it flies in the face of the facts at hand or even common sense. Despite his own unwarranted arrogance, Motoyasu is also the easiest of the Heroes to manipulate, with Malty in his party specifically because she can constantly feed him whatever lies she needs to get him to do whatever she wants. Motoyasu also has a very creepy obsession with Filo, despite her being a child even by the standards of her species.
Raphtalia's original owner, named Idol Rabier in the anime, embodies the cruelty of the slavery and bigotry that the Demi-humans face. Starting off destroying a village and kidnapping the children, Rabier tortures his child slaves, some to death, and aims to kill Naofumi just to get fame. Attempting to destroy everyone in his path, Rabier eventually unleashes a monster to kill Naofumi, completely uncaring if it destroys the town. Cowardly and cruel, Idol Rabier is one of the few people that even the saintly Raphtalia only feels pure rage towards.
Tact/Takt Arusahorun Faubley, the Arc Villain of the "War of the Heroes" arc in the web novel, is a chosen wannabe hero who deconstructs the archetype by being an unlikable Fake Ultimate Hero. Takt has caused the deaths of countless innocents as well as the people who are actually defending the world from the waves, all the for sake of satisfying his image as the sole hero, believing everything Princess Malty tells him about those people. Despite his claims of being a powerful and virtuous hero, it's clear to everyone he's just a moronic and boastful fake in both moral character and strength, and even his sole redeeming quality, his care for his followers, is tainted by his utter incompetence at protecting them, his Moral Myopia, and his Horrible Judge of Character towards some of them, especially Malty.
The King of Faubley is a cruel and misogynistic monarch who rapes and tortures his brides to death and uses his control of the powerful kingdom of Faubley to get away with it, threatening war on any nation who dares to defy him. Having done this to 9,999 brides already, he makes the aforementioned Princess Malty the last, sending a recording to Naofumi, who is utterly horrified even despite his hatred of Malty. When he finally dies at the hands of Tact/Takt, no one mourns him.
Rosario + Vampire: Gyokuro Shuzen is one of the heads of the anti-human terrorist organization Fairy Tale alongside the Masked King, but is far more vile. Holding a grudge against Akasha Bloodriver for stealing her husband Issa's attention away from her, Gyokuro seeks to start a war between humans and monsters solely for the sake of spiting Akasha's dream of co-existence between monsters and humankind. Along the way, she conditions her eldest daughter Kahlua into a mindless killing machine, attempts to have her youngest daughter Kokoa killed by her own sister, and takes every opportunity to physically and psychologically torment Akasha's daughter Moka. Finally, she fuses with Alucard and attempts to destroy the whole world. Lacking the sympathetic backstories of Hokuto Kaneshiro and the Masked King, Gyokuro is a monster both literally and figuratively.
Rurouni Kenshin: Industrialist Kanryu Takeda is a Drug Lord responsible for the mass production of opium, which he accomplishes by forcing Megumi Takani, an innocent doctor, to making them after killing her mentor. What pushes him into being a loathsome person is a combination of his cowardice in a series where all the major antagonists are badassblood knights, a Smug Snake who sees himself much more majestic than he actually is, and a Bad Boss who doesn't truly give a shit about his own men beyond being pawns, as evident when he gets out a gattling gun to kill his bodyguards when they finally turn against him. It's quite satisfying as even though Kenshin still doesn't break his vow to ever kill, he doesn't give the dirtbag a chance to redeem himself and instead disfigures him with one swipe of his sakabotou.
School-Live!: While the zombies are disturbing and creepy monsters that have killed countless amounts of people, they are also compleatly mindless and have a tragic element to them nonetheless, so you can't really hate them. The same cannot be said for most of the Melee Fight Crew, with the exception of ShinouUhara. The group are a bunch of ruthless murderers who will do anything to survive, even if that means killing several of their own people by locking them outside with the zombies. They're also incredably hostile to outsiders and are implied to have murdered people just because they might be infected. Takahito and Ayaka are especially horrible. Takahito is the leader of the MFC and the one who plans out and decides their atrocities, and while he certainly acts like he has the team's best interests at heart, he ultimately only cares about himself and on top of everything else he's also a massive Hypocrite, as he tries to save himself when he's infected by first hiding his infection and then letting a massive swarm of zombies inside to kill everyone inside, including his own allies. Ayaka is a complete sociopath who views the zombie outbreak as a good thing and secretly hates everyone around her for not enjoying the death and chaos caused by the zombies, and she is very fond of sadistically taunting and murdering whoever she can. And Takashige is a complete brute of a thug who physically abused Hikako for not being able or willing to kill a zombie and also tried to murder Kurumi, a teenage girl, just because he found out that she's infected, despite her posing no threat to him. With this in mind, it is very satisfying to see Takahito slowly dying horribly due to the Airborne Virus and being unable to save himself while also going through a brutal Humiliation Conga that ends with him being brutally murdered by Ayaka, and Ayaka herself being stuck in the middle of the street with several zombies ganging up on her.
Senran Kagura: Most of the evil shinobi are Anti Villains at worst, and the yōma are mindless beasts who are also fully capable of love and kindness, but these two evil shinobi are truly evil:
Dōgen is the cruel man who runs Hebijo Academy. Throughout the series, he manipulates the Hebijo girls, both old and new, into serving him. He cares nothing for them, however, and is willing to use their deaths to serve his plans. Whether it be sacrificing girls to Orochi (game)/the Yin and Yang scrolls (anime and manga), pitting several shinobi schools against each other, or summoning an army of yōma to destroy Japan, Dōgen completely lacks the sympathetic qualities of the other evil shinobi and antagonists, instead being defined by his malice and desire to Take Over the World.
Komichi was Homura's seemingly kind mentor and crush who is responsible for her turn to evil. After gaining Homura's trust over a long period of time, he got her to confess to being a good shinobi heir, then reveals that he was an evil shinobi sent to kill her family. When Homura asks him why he befriended her instead of simply torturing her for the information, he explained that he loved to see the looks on people's faces after being betrayed, before trying to kill Homura herself and ultimately getting her rejected by the good shinobi after she fought back, driving her directly into the arms of the aforementioned Dōgen.
Chazawa of Shirobako spends basically every moment of his appearances in season 2 making it more difficult for the main characters to produce the anime version of Third Aerial Girls' Squad, and it's eventually revealed that this is fully intentional on his part. Much of the second season is in fact spent trying to overcome his interference, and MusuAni very quickly cottons on, complaining about him and mocking him whenever he comes up. Fans reacted much the same towards him, and both In-Universe and out his Laser-Guided Karma payback in episode 23 was met with joy.
A Silent Voice: Miki Kawai mainly serves this purpose in the manga, supplanting Naoka Ueno following Ueno's HeelFace Turn. However, Ueno is a more blatant case in the film adaptation. In the manga, Ueno at least admits to being a horrible bully back in elementary school and expresses self-loathing about herself, while Kawai tries to gaslight Shoya into believing that he was the only one to bully Shoko and that she took no part in it, and is generally defined by her Never My Fault narcissism. In the film, Kawai isn't shown being mean to Shoko, while Ueno is shown being mean, even violent and unapologetic, although she still ends up making a begrudging HeelFace Turn at the end for Shoya's sake.
Soul Eater: Medusa is a relentlessly cruel Manipulative Bitch who treats her own child like a test subject and initiates the plot with her wicked schemes. Whether or not she's the Big Bad of the series is a matter of debate, but she's definitely The Heavy and continues to play a large role throughout.
Sound of the Sky: Colonel Hopkins embodies the evils of war. Believing that War Is Glorious and desiring to reignite war with Rome in contrast to the anti-war heroines, he had previously manipulated Noel Kannagi into killing three cities full of people with a plague. In the present, as part of his plan kill the Roman soldier A'isha Aldola, he takes over the 1121st platoon and mocks the girls as he boots them out. Later, he takes the entire town hostage and later outright tries to murder the girls in frustration. Showing a disturbing willingness to manipulate and kill innocent girls to pursue his ambition, Colonel Hopkins is a sociopath willing to drag two nations back into war just to satisfy his craving for bloodshed.
Strider Hiryu: Vice Director Matic manages to be a bit detestable before the reveal he was evil, it's implied he had a hand in the brainwashing of Hiryu's late sister Mariya, which got ten Strider trainees killed, forcing Hiryu to kill her himself, and also, while bad enough that he ordered Hiryu to kill his friend Cain who got captured by enemy forces, it's also implied he was the reason Cain was captured and brainwashed in the first place, all so that Hiryu can kill Faysus Clay as part of his plot to take over the ZAIN Project. In the manga, he also planned on using Hiryu and Cain as scapegoats in the attempted assassination of Kuramoto.
Kuradeel from Aincrad. He's a Stalker with a Crush toward Asuna, but what puts him into "downright loathsome" territory is when he poisons the rest of his party, paralyzing them, and plans on killing them all and claiming that he was the only survivor. When Asuna almost kills him, he cowardly tries to appeal to her conscience, then tries to kill her, only for Kirito to kill him, resulting in Kuradeel dying a pathetic death.
Also from Aincrad, there's Grimlock, who hired Laughing Coffin to kill his wife because she was becoming stronger and more assertive in-game. Kirito and Asuna are completely disgusted by his motive for the crime, and declare that he never loved her.
Endou and her two accomplices also count, being bullies who use Shino "Sinon" Asada's trauma of guns in order to extort money from her. It's even worse in the light novel, as it's revealed why they did that. The three of them extended an insincere offer of friendship to Shino in order to take advantage of her, since Shino lived alone and they wanted to use Shino's apartment to throw parties. When Shino finally got fed up with being taken advantage of, the other girls researched her past and used it against her out of revenge. The three girls are portrayed completely unsympathetically, and it's very satisfying to watch Shino turn the tables on them.
Eiji Nochizawa of Ordinal Scale. Despite being a Tragic Villain, his many Kick the Dog moments and being a Smug Super negate any sympathy the audience would otherwise have for him. While Shigemaru takes no pleasure in the crimes he commits and is very pained the whole way, Eiji gleefully abuses his power as he beats down his fellow players.
Raios Antonious and Humbert Zisek. The two of them, both high-ranking nobles, look down on Kirito and Eugeo for being commoners, belittle their flashy sword techniques and even sever the buds of Kirito's flowers just to get back at him, but that isn't the worst of it. Humbert gives his page Frenica completely inappropriate orders, such as having her give him a massage while naked, and Raios lets this happen. When Kirito and Eugeo's pages, Ronie and Tiese, confront the two over their actions, they go flying over the Moral Event Horizon by tying both of them up and trying to rape them while making Eugeo (as well as Kirito) watch, hoping that their enemies will be driven to break the rules. When Humbert gets more than he bargained for and Eugeo cuts off his arm, Raios has no sympathy for him, gleefully relishing the process of killing Eugeo personally until Kirito intervenes and cuts off both Raios' arms, at which point Raios demands that Humbert risk his own life to save Raios. No one feels much sympathy when Raios' Fluctlight collapses, resulting in his death, although Eugeo has a brief My God, What Have I Done? moment over his first violation of the Taboo Index.
Umareru Kachi no Nakatta Jibun ga Anna no Tame ni Dekiru Ikutsuka no Koto: Kazuya Mukai, despite being the protagonist, is a completely unlikeable loser and Serial Rapist. Initially a pitiful mangaka wannabe that fails at improving his life even after returning to the past, he embraces his evil after accidentally killing his bully, Shinya. Determined to rape his crush, Anna, Kazuya proceeds to torment his supposedly friends in the pursuit of doing so, completely uncaring of the deaths that result, raping and later killing his accomplice, and eventually trying to kill his Kid from the Future while telling her how worthless he considers her to be- something his adult self had done in the past. Repeatedly being humiliated and demonstrating a total lack of charisma, Kazuya is a pathetic man who cares only for satisfying his lust.
Useless Princesses has Hiro, who's Nanaki Fujishiro's boyfriend at the start of the series. At the very start of the story, he gets caught cheating on Fujishiro. When confronted, Hiro shows no remorse, breaking off the relationship and callously saying that Fujishiro was his "backup girl," whom he only dated for her looks. While Fujishiro isn't a very nice person at the start, this cruel treatment, which is far worse than she deserved, does lead to her changing for the better, something that does not happen to Hiro.
Valkyrie Drive: Mermaid: Charlotte Scharsen seems to have no other purpose in the series than to display how Teens Are Monsters. She's unbelievably arrogant, vicious, vindictive, vain, and worst of all, petty. There is not a single appearance where she's not either contemplating to Kick the Dog, or actually doing so. She surrounds herself with a Paid Harem, and she always seeks to make an example out of anyone who so much as suggests violating even the smallest of Mermaid's rules, whether the offender is aware of it or not. Those who object just simply haven't been beaten down hard enough. From as early as episode 2, it's clear that there is no despicable act she's willing to overlook in this endeavor. By contrast, the actual Big Bad Momoka Sagara is a Woobie, Destroyer of Worlds due to her treatment by The Organization, and even gives a Kick the Son of a Bitch moment to Charlotte.