Complete Monster/Fist of the North Star


 * God knows how many villains in Fist of the North Star. Arguably, the most heartless of them has to be Jagi, who, as his most villainous act, chained a cinderblock to a kid's leg and left him in the middle of the desert. For no reason. Just like Kenshiro said, Hell is too good for him.
 * There was a reason. He and his older brother got into an unfortunate altercation with one of Jagi's men, reaching the point where the goon threatened to cut off the younger brother's leg. Jagi eventually settled the issue...by grabbing the younger brother, bellowing "There's no such thing as a younger brother who's better than his older brother!", and sending him out into the desert to perish. He was really, really big on that whole birth order thing. (I didn't say it was a good reason.) It's also notable that up until that point, he was pretty much on the level of Zeed, a stupid loudmouth punk who fought dirty and occasionally had to shoot a guy to make a point. Murdering an innocent child was what pushed him over the Moral Event Horizon. With a nuclear-powered bulldozer.
 * Let's not forget that he murdered Rei's family, kidnapped Airi on her wedding day, and sold her into sex-slavery with the Fang Clan.
 * And also manipulated Kenshiro's best friend, Shin, into kidnapping Yuria due to his jealousy and unrequited love, which led to the mind-scarring event of Kenshiro seeing Yuria taken away from him, being betrayed by his best friend, and getting his seven scars.
 * Let's not overlook some of the others. There's Amiba, a Mad Scientist with Hokuto Shinken who conducts horrible experiments on peoples' pressure points, often making them explode quite gorily. He doesn't even show remorse when testing on children and impersonate a good man like Toki to destroy his name. Why? Because...Toki accidentally slapped him in the face once.
 * Emperor Souther is an example of a villain whose Freudian Excuse doesn't even BEGIN to overwrite his atrocities or explain anything. Souther runs a brutal empire that enslaves thousands of innocent children and works them to death. He poisons supplies he knows the rebellion will steal and throws himself huge banquets, eats a small plate, and destroys the rest, all for the sick glee of watching the starving slaves suffer. His old friend Shu, the rebellion's leader? Souther forces him, with cut tendons, to make his way up an enormous pyramid holding the enormous stone cap piece meant to finish it...if he drops it, every single slave will die. If anyone helps Shu, Souther tells them their families will be executed. And then, once Shu finally does make it to the top of that pyramid? The bastard puts a fucking arrow into him. To say that Kenshiro was madder than hell at this is quite the understatement.
 * The Freudian Excuse in question? Because he was forced to kill his beloved master to master the Nanto Ho'ou Ken. The amount of grief he experienced was so much that he swore to never love and became as much as a bastard as he can. Gee, you'd think he'd try to man up rather than just run off from challenges of the grief coming with love like that.
 * Jackal, the bandit lord that Kenshiro takes on after the business with Shin, somehow manages to rival even the above three in depravity. Jackal and his men are harassing a village with an orphanage for its water. Jackal's men murder seven-year-old Taki for trying to collect the water they claim as "theirs", even if without the water, the rest of the orphans and their caretaker Toyo will die of thirst. But even after the orphans and Toyo are subdued, Jackal feels the need to sadistically kill them. Jackal purposefully gives Toyo a mortal stab wound, just so she could live long enough to watch one of the orphans hanged by his men. To make matters worse, Jackal then tries to kill the kids by strapping dynamite to their backs in order to keep Kenshiro from going after him. It's not only his enemies who should fear Jackal, either. He's a ludicrously Bad Boss, killing his own men for the slightest provocation and sacrificing his trusted lieutenant just to slow the vengeful Kenshiro down, and is eventually forced to slaughter his whole gang when they rebel against his mistreatment. When Kenshiro tracks him down at Villainy Prison, Jackal manipulates a giant Psychopathic Manchild convict by the name of the Devil's Rebirth to become his pawn to fight Kenshiro by pretending to be his long-lost brother... and when the Devil's Rebirth fails, he thanks Kenshiro for rescuing him from the 'evil monster' that had 'captured' him, and encourages him to kill him quickly.
 * Uighur is the sadistic warden of the prison-city Cassandra, dumping ground for the warlord Raoh's few living enemies. Cassandra is nicknamed the 'City of Wailing Demons' due to the unimaginable hardships its inmates endure, hardships that Uighur is so delighted by that he alters prisoner treatments to get just the right pitch and timbre of lamentation. He is extremely proud of his prison's reputation as The Alcatraz, stating that "the legend of Cassandra is my legend as well", and maintains its zero-escape record by gruesomely killing any prisoners who try to escape, as well as anyone from outside who tries to break them out (the latter along with a cell of randomly-selected prisoners, just to make a point). His own staff fare little better - for example, his gate guards, Raiga and Fuuga, are kept in line by the threat that if they disobey him, their younger brother will be pecked to death by Uighur's pet eagle. The only people he tries to avoid killing are those willing to die, because that spoils half the fun, and he'd much prefer to instil the appropriate fear of death in them before murdering them really horribly.
 * Jakoh, Evil Chancellor of the Celestial Empire, was never a nice person, waxing gleefully enthusiastic about infanticide when the Empire turned out to have one heir too many, but when Raoh came to their village, sensed his evil, and advised the man's adoptive brother Falco to kill him on the spot to avert future suffering, few knew how right he would be. After Raoh's death created an Evil Power Vacuum, Jakoh moved to fill it, using the young Celestial Emperor Rui as a Puppet King and manipulating Falco, her oath-sworn bodyguard, 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 brutalising the poor whilst punishing dissent with death so liberally that the concentration camps overflowed and malcontents were executed in the streets. Eventually, Jakoh's paranoia led him to endorse outright genocide, ordering the reluctant Falco to obliterate the nations formed under the Hokuto Shinken and Nanto Seiken martial art schools and beating him when he failed. His hatred of Hokuto was not the only legacy of his encounter with Raoh - Jakoh had an intense fear of the dark. As a result of this, he would lapse into murderous tantrums when the lights dimmed too much, and worked thousands of slaves, old and young alike, to death in keeping the capital of the Celestial Empire brightly-lit. Throughout it all, he never showed any remorse or regret for his actions, instead taking sadistic delight in Falco's disgust and horror at the latest atrocity he would force him to perform.
 * One of the big reasons why the world of Fist of the North Star is such a Crapsack World is that the monstrosity isn't limited to the major villains. Every single Mook that serves these villains is utterly selfish and craves power and bullies the weak, treating the innocent good people as playthings to plunder, loot, rape, and murder for sport. It's no wonder the arrival of Kenshiro is often considered as the arrival of a savior.