There is a world of adventure...that needs brave and powerful heroes. Heroes to end the scourge of various evildoers.

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• The Chaotic Evil dragon god Dahak, the False Wyrm, is the son of the Lawful Good Apsu. Having murdered many other Dragon Gods, Dahak found pleasure only in destruction and created the metallic dragons to hunt for sport. Escaping into the mortal planes where he killed and destroyed at will until he was found by Apsu, Dahak's dogma focuses on spurring his followers to hunt and murder the innocent—especially metallic dragons. Dahak even created Hell as a place of torture and suffering, all while seeking the genocide of good dragons, while intending to destroy even the chromatics eventually and to kill his hated father once and for all.
• Szuriel, archdaemon, Seraph of Devastation and Horsewoman of War, is the worst of Pathfinder's evil deities. A former paladin, Szuriel became a conquering empress who had every member of her former faith crucified in revenge for her excommunication. Following her death, she became a daemon, and murdered her way to the top of Abaddon's hierarchy, eventually slaying the previous Horseman of War and taking his title. In her new rank, Szuriel represents war at its most terrible, celebrating societal breakdowns, scorched earth campaigns, and ethnic cleansing. Hiring out her daemons to those who pay the most, Szuriel inevitably turns on her employers, after forcing the campaign to degenerate to the point where mutual genocide is the only way it can end. Forging weapons in the heat of burning human souls, and reveling in violent excess, Szuriel demonstrates what happens when a Physical God adopts the mentality of the most sadistic Psycho for Hire.
• Riktus Scroon would often torture his victims with knives for hours before throwing them in pits to kill them, and often targeted couples in love, just for the fun of watching them grieve. When he was finally caught, he was charged with murdering 46 people, at which point he laughed and claimed he had killed a whole lot more, for a total of well over 900 victims. Upon being executed, he went to the Abyss but wasn't punished but rather rewarded by Lamashtu by being turned into the nascent demon lord Nightripper. As a demon lord, he serves as a torturer and killer for Lamashtu, and frequently travels to Golarion to kill more people. He also has the ability to put a curse on his victim's souls that cause them to be trapped at the spot they died and in constant pain from their wounds which drives them insane, even after their body rots away completely.
• The wizard-king Geb is a necromancer who runs with an iron fist the territory which he named after himself. Having started a war with the neighboring territory of Nex and their own eponymous ruler over a territorial dispute, Geb proceeds to drain the life out of the land surrounding Nex's cities through the use of dark magic. When Nex retaliates by having large numbers of Geb's population killed through magical means, Geb puts a curse on his territory, turning anybody who dies there into his undead slave. In response to an attack led by Pirate Queen Mastrien Slash and her army of warrior women, Geb has them killed, revived, and Petrified. In retribution for the Knights of Ozem trying to overthrow him, Geb, in addition to making them undead, forces them to bring the corpse of the hallowed Paladin Arazni, intending to turn her into an evil lich; despite escaping Geb's control, Arazni remains corrupted beyond repair. Gardens of Gallowspire notes that Geb had broken one of the Knights of Ozem by forcing her to kill her hippogriff mount, reviving the creature, and repeating the process, killing and reviving the knight when she refused to continue.
• Tar-Baphon, known better by his moniker of the Whispering Tyrant, is one of the most dangerous villains to rise from Golarion. Even before becoming a lich, the man Tar-Baphon was a necromancer, envious of the god Aroden and seeking to attain godhood himself. He has attempted to Take Over the World twice; his first attempt as a mortal man ended when Aroden slew him, but this was part of his plan all along. Thousands of years later, after he had been forgotten, the Whispering Tyrant rose as a lich, and began his conquest in earnest. He conscripted the orcs of Belkzen and subjugated Ustalav, raising the fallen on both sides as undead servants and expanding his power all across Avistan. The Whispering Tyrant reigned supreme for five hundred years, centuries filled with blood, unleashing servants like Socorro and engineering mass Human Sacrifice in his attempts at godhood. When the Shining Crusade, led by Aroden's herald Arazni, attempted to put a stop to him once and for all, the Tyrant went out of his way to capture, humiliate, and torture Arazni to death, before throwing her mangled body to the Crusaders to shatter their faith. After being sealed away within Gallowspire for several centuries, the Tyrant would engineer his escape by arranging for the theft of the shards of Arnisant and use them to create the Radiant Fire. After destroying the town of Roslar's Coffin to test the Radiant Fire, the Tyrant would use it to destroy the seals keeping his prison intact, killing thousands in the process and causing the Kingdom of Lastwall to collapse into anarchy before launching a full-scale invasion of Absalom in order to claim the Starstone. Driven by his envy of Aroden, his ego, and his all-consuming desire to have the entire world under his boot, the Whispering Tyrant remains one of the most feared beings on Golarion.

Individual Adventure Paths (by release date)

• Curse of the Crimson Throne (primarily):
  • Kazavon was at one time The Champion of Zon-Kuthon, God of Envy, Pain, Darkness, and Loss. While all of Zon-Kuthon's followers tend to be a nasty bunch, with a penchant for torture and self-mutilation, none of them, including possibly Zon-Kuthon himself, has ever come close to the level of atrocity perpetrated by Kazavon. Essentially Vlad the Impaler in the form of a sixty foot Blue Dragon, Kazavon disguised himself as a human mercenary and offered to help the nation of Ustalav drive out the invading Orc hordes. Upon his victory, Kazavon set himself up as the dictator of the borderlands area, where he ruled with an iron fist, torturing to death all those who disagreed with him, including many of the soldiers who had served him faithfully up to that point. When his employer tried to rein him in, Kazavon flayed the man alive. He would go on to achieve truly special heights of depravity, holding torture parties, and orgies involving the undead, spreading his influence throughout the entire area, and having entire villages impaled for his entertainment. Kazavon was eventually killed by a party of heroes, but the madness didn't stop there. The pure evil of his soul contaminated his skeleton and threatened to resurrect him. The bones were crafted into seven Artifacts Of Doom and hidden throughout the country; contact with even one of them is enough to drive the wearer down a path of madness, murder, and ultimate self-destruction. When Queen Ileosa dons the crown, Kazavon gives her the power to murder her husband, turn Korvosa into a Police State, unleash the Blood Veil plague against the city's poorest citizens, and drain the lives of thousands in an effort to gain eternal youth.
  • Gaedren Lamm is a minor crimelord of Korvosa who missed his chance to become a major player long ago. Focusing on children, his "Little Lamms", Lamm has them kidnapped and made into pickpockets and slaves, forced to toil until Lamm disposes of them. Murdering many who stand in his way, Lamm is keen on torturing the orphans if they step out of line; the only fate that awaits them is to be fed to Lamm's pet gator Gobblegut. Upon the heroes coming to bring Lamm to justice, Lamm is willing to sacrifice his pet and all his Little Lamms as human shields.
• Second Darkness: Allevrah Azinrae was once an Elven cleric of Nethys, God of Magic, and a hero in the nation of Kyonin. That was before she, with the aid of the Demon Lord Abraxas, conceived of a plan to exterminate the drow. When the fellow members of her conspiracy refused to go through with the plot, Allevrah murdered her critics, let her rage transform her into a drow, and fled to the drow capital of Zirnakayinn, where she murdered the matron of House Azinrae and took it over. Desiring revenge on Kyonin, Allevrah plans to drop a meteor on the capital; if successful this plan will wipe out Kyonin and trigger an ice age that will kill most life on the planet. After a failed attempt at using the city of Riddleport as a test target, Allevrah retreats to the Land of Black Blood below Kyonin, where she prepares to summon her meteor. She also allows her lover, who is terrified of her, to perform hideous experiments that reduce the victims to masses of screaming black liquid, cuts deals with an aboleth mind rapist and a neothelid, feeds prisoners to ropers, and orders her troglodyte henchman, Ornn, to eat a charda colony's children if they do not cooperate with her. Driven solely by hate, Allevrah shows just how far even the best person can fall.
• Rise of the Runelords:
  • The Skinsaw Murders: Xanesha, one of the chosen lamia matriarchs of Karzoug, is the half-sister of the equally-wicked Lucrecia, with whom she is engaged in a game of Sibling Rivalry to damn as many souls to Karzoug as she can. Opting to eschew Lucrecia's emphasis on manipulations, Xanesha orchestrates the titular murders, twisting the local cult into her brainwashed patsies to have them start torturing people to death all over the city, carving runes into their still-living bodies to ensure their souls are damned to Karzoug. In her leisure time, Xanesha allures men into becoming her lovers solely so she can devour them, fosters ghoul plagues to take as many lives as she can, and turns a man named Aldern Foxglove into a tormented ghoul to use him as her pet murderer in undeath.
  • The Hook Mountain Massacre:
    • Lucrecia, one of the chosen lamia matriarchs of Karzoug, is the half-sister of the equally-wicked Xanesha, with whom she is engaged in a game of Sibling Rivalry to damn as many souls to Karzoug as she can. Lucrecia poses as a gambling entrepreneur who opens up a casino ship known as the Paradise to the people of Turtleback Ferry, luring them in by droves to secretly mark them with Sihedron runes. Through the runes, Lucrecia intends to damn Turtleback Ferry to Karzoug's clutches, trying to flood the entire town to drown every living soul in it. Lucrecia sinks the Paradise and dozens of innocents with it when she's finished passing around the rune, and as a diversion to her own plans, seduces a soldier named Kaven into weakening the fortifications on the nearby Fort Rannick, resulting in its unspeakably horrible slaughter at the hands of ogres. Lucrecia smugly taunts Kaven about this, and given the opportunity will attempt to cajole the adventuring party into striking him down for his unwitting part in the massacre.
    • Barl Breakbones is a particularly nasty servant of the stone giant wizard Mokmurian, and Lucrecia's partner in crime in the plot to destroy Turtleback Ferry. Barl strong-arms a gang of ogres, the Kreegs, into his service by violently slaughtering many of them and cowering the rest into his servants, and continues to viciously abuse and murder them for any reason he sees fit, using his necromantic powers to resurrect one he brutally murdered solely to feed the resurrected ogre to his servants. Barl is the one who directly carries out the slaughter of Fort Rannick, where every living man inside was tortured to death in every way imaginable over a period of weeks. The innocent water nymph named Myriana was subjected to arguably the worst fate, ripped to pieces while her lover was Forced to Watch and consigned to undeath as a hateful, tormented ghost. Barl fully intends to aid in Turtleback Ferry's destruction, and ignores the calls of his king Mokmurian solely so he can glory in his power over the ogres for a little longer, executing one of his own bodyguards merely for suggesting they get back on schedule.
    • Mammy Graul is the matriarch of the Graul Clan. Having any of her female children killed at birth, so many that their bones fill large amounts of spaces, Mammy subjects her less useful sons to torture and rotting solitude. A necrophiliac murderer and torturer, Mammy sends her sons to abduct travelers and anyone else, having them dragged to the graul homestead where they are raped and tortured for weeks before expiring. Killing others herself to turn them into undead slaves, Mammy is responsible for the horrific deaths of countless innocents to feed her sick desires.
• The Moonscar: Izmiara, the Insatiable Queen, is an antipaladin who rules the Moonscar, a place on Golarion's otherwise lifeless and uninhabitable moon, for the past 12,000 years. For millennia Izmiara and her minions have used magic to fly through space and kidnap Golarian humanoids for breeding, slavery and corrupting into demonic creatures, with those who don't make the cut killed horribly for her amusement. A freak volcanic eruption has caused a massive portal connecting Golarion and the Moonscar to become active again, with which Izmiara plans to use to invade and corrupt all of Golarion. When the PCs go to the Moonscar to stop her, as well as rescue some recently kidnapped people, they find numerous disturbing things such as a place where demons who fail her, including her own daughters, are fed to an even bigger demon, the "sequestered"—a group of humanoids who have been mind raped into loving Izmiara and are implied to be sex slaves; numerous people as well as celestials who have been killed and tortured in horrible ways; a gold dragon who has been possessed and kidnapped by a shadow demon working for Izmiara, who is under orders to sacrifice to her once said dragon is no longer needed; and a human general who once served under Queen Galifrey but his now hopelessly brainwashed and corrupted.
• Wrath of the Righteous: Areelu Vorlesh, the half-fiend Witch Queen of the Worldwound, is one of the most vicious servitors of the demon lord Deskari and his chief mortal agent in having ripped open the Worldwound. Areelu wrought unspeakable carnage over the kingdom of Sarkoris by exploiting the nation's thin boundaries between the material world and the Abyss, resulting in a terrible gash opening between worlds and an army of ravenous demons flooding into Golarion. 100 years later, Areelu schemes to tear the Worldwound even wider to consume all life on Golarion to its demonic tides, attempting to transmute entire armies into half-fiend slaves and creating vile demons like the mass-murdering Filleted Man. Possessed of a wicked tendency for condemning enemies and inconveniences alike to her unspeakable experiments, Areelu turned both of her co-conspirators in opening the Worldwound into hideous parodies of life for a century straight for their defiance to her. Notes can be found indicating Areelu schemed to augment the agony of one of them even more before her defeat.
• Strange Aeons: The Tatterman, from "In Search of Sanity," is a servant of Hastur with a terrifying predilection for Mind Rape. A wicked resident of the Dreamlands, the Tatterman invades the minds of its victims in their sleep, turning their worst fears against them, shattering their minds and reducing them to less than human through its psychic assaults. In its efforts to claim Briarstone Island and its population to sacrifice them to Hastur, the Tatterman invades the dream of a Mad Artist in the material world to manifest and plunge the entire asylum into a living nightmare. The Tatterman delights in spreading fear and chaos throughout the asylum, having people cannibalized, sliced open upon operating tables, and twisted into all manners of monstrosities as its prelude to the sacrifice of the entire island. Not strictly relegated to Hastur's service, the Tatterman was the agent through which the village of Thrushmoor met its doom in service to the Briarstone Witch.
• Sandpoint: Light of the Lost Coast: The Red Bishop is a cleric of Pazuzu who in truth serves Pazuzu and Lamashtu's son Uvgalor. Responsible for countless atrocities to free Uvgalor, the Red Bishop turns a man into a Serial Killer called the Chopper with over twenty victims, threatening to destroy all of the land of Sandpoint while also unleashing attacks to wipe out a whole island in an attempt to unleash Uvgalor upon all Golarion and consume the world.