The Damned
Those whose actions in life caused them to be cursed with undeath. Those punished with undeath.
Bwytawr
A person who was cursed to undeath because they engaged in unacceptable forms of cannibalism in life. They come back and want to eat mortal flesh; they are insatiable; the hunger hurts them. But they cannot eat, for eating will dstroy them. So they drain nourishment with their touch, steal breath from people, and cause crops to wither and die in their presence. If they ever eat any kind of food, they will crumble to dust.
Duine Maslach
Lords who were abusive and cruel in life and come back to reign over their subjects in death. They wish to harm those they lorded over in life, and if they cannot find them or their descendents, they wither and fade after a century. They can be killed with magic, silver, or fire.
Eternal Godless
The eternal godless are mortals who tried to fight the gods or killed innocent followers of a deity and were cursed by the gods to never rest. They are weak to powers of faith. They are usually made from missionaries of imperial faiths who harmed others of another imperial faith, and thus, they terrorize imperial lands. They are denied the presence of the Divine, and they live on to terrorize those who will one day know it.
Knight of Kael'Ras
Knights who made a vow in life, broke it, and return as undead, or knights who made a vow to an undead power in life and return to continue to serve. They retain their martial skill from life, but find their strength and magic enhanced in death They are dangerous and powerful warriors who serve infernal and imperial powers, and defeating them requires powerful magic.
Leannan Ead
Someone damned to undeath because they murdered their loved one in a jealous rage. They are rotting versions of their former selves, but with a green tinge. Fire or love might send them, but it is best just to stab them with a hawthorn spike.
Mandru
A person whose pride caused them to be cursed into undeath. They are fueled in death by pride, and they seek those whom they rivaled in life to destroy them in undeath. They are stunned by mirrors, harmed by magic or silver, and confused by insults.
Mifraody
A mifraody wears symbols of their status in life that are extremely heavy. They are missing half of their faces and skulls, and their bodies have patches of flesh missing, allowing their muscles, bones, and organs to be seen. They are wealthy people who cheated others in life and were cursed because of it - though some use magical mirrors to intentionally become one. If they used a mirror, breaking it will send them to the other side. If they did not, then breaking their weights can defeat them.
Qatil
Undead serial, mass, or spree killers whose tongues become long, bony horrors that they use to drain life from people. Stabbing them with their own weapons will destroy them.
Tundurspillir
Undead warriors who razed villages and committed atrocities in life, they return as undead and go on a violent spree before exploding horribly. Sending a tundurspillir before they explode is very difficult without powerful magic. It requires trapping them and casting them into the sea in a vessel made of whitebeam wood or some material studded with lapis lazulis.