Undead

Undead are deceased souls outside the Spirit Realm, souls within the Spirit Realm are just dead. There are many different types of undead.

Spirits
Spirits are souls without bodies

Reanimated
"Reanimated" is the name given for a soul trapped within a dead body. The magic of this soul, or the magic given to it, allows it to move the body

Possessed
"Possessed" is the name given for a soul trapped within an object. The difference between this and a remnant is that the object a Possessed is trapped in is not, and never was, alive.

Shades
Shades are souls that have returned to the mortal realm for a malevolent cause of their own, usually vengeance. Most are merely a shadow of their former selves.

Nighthaunts

Lovehaunts

Grave Maidens

Mournhags

Ghouls/Guls

Bloodgeists

Wildegeists

Battlesworn

Battle Remnant

Pale King

Unchained

Zaikerik

Sabrina Kairn

Raven Blackflame/The Dark Lady

King Eredall II

Wraiths
Wraiths are souls who avoid judgement and want to linger in the mortal realm as undead.

Gravewraith

Wanderwraith

Elderwraith

Banshees

Phantoms

Liches

Battlewraiths

Riverwraiths

Noblewraith

Crypt Lord/Lady/King/Queen

Sir Zeylin

The Penitent
Penitents are souls which return to the mortal realm for a benevolent cause in order to repent for the actions they committed in life and in order to reduce their sentence in the Spirit Realm.

Spirit Guides

Spirit Guardians

Huntsworn

Thralls
Thralls are spirits which have been bound to the will of the living and which would otherwise happily pass on to the spirit realm. Some of these willingly subdue to necromantic magic, others are forced.

Zombie

Revenant

Deathsworn

Darksworn

Tombguard

Seasworn

Reapers
Reapers are souls which have pledged their undeath to the task of finding rogue souls which have escaped judgement and bringing them to the Hall of Judgement.

Valkyries

The Jailor

Deathknell

The Unforgiven
The Unforgiven are souls which have committed terrible crimes during life and are judged to be evil. They are transformed into hellish creatures whose very existence is torture and who are tasked with making the journey difficult for those searching the Hall of Judgement