A half-dragon kobold mercenary, his unpleasantness warped into cruelty when he was possessed by a deposed demon lord, plots to unleash an army of fiends over Toril and drag it into the Abyss.
An oozemaster, so twisted as to be only tangentially human, conducts strange rituals in the dark places of the earth so as to bring about the return of the Elder Gods he serves.
Debased and decadent, this paragon illithid has trained as an assassin and now seeks a weapon that can be used to slay a god.
This slaad lord, trapped beneath an ancient volcano, has lured women to his lair to produce four sons, whom he conspires to first conquer the nation where his prison sits, then free him, then spread his reign of terror across the continents.
The warden of a prison and leader of the police in a troglodyte city, he is secretly a were-dinosaur, and seeks to spread his affliction by any means necessary.
Utterly amoral, this rakshasa lives as an "art dealer", providing other villains with the magical items they need to affect their plans.
A gnome necromancer, ejected from his home city for his bizarre experiments, now seeks to create flesh golems using the parts of those who put him into exile.
An ultroloth from Shavarath, the plane of war, the one known only as the Artisan was so entertained by the Last War that swept Eberron that he intends to start it again, by himself if need be.
An heir to the Cannith fortune, he considers warforged little more than things and authorizes experiments to "improve" them, no matter their methods.
A wicked Karrn vampire, Luther Averol seeks both blood and the chance to spread the influence of the Order of the Emerald Claw in Sharn.
Demiurge out.