Sorcerer Thralls were the weakest of the Thrall variant enemies seen in Soul Reaver 2. As with other thrall variants, Sorcerer Thralls were undead warriors, re-animated and tasked with eternally protecting the sacred places of the Ancient vampires against intrusion, rising from underground to confront Raziel as he approached[Soul Reaver 2 manual][Soul Reaver 2 strategy guide (Prima)]. Visually, Sorcerer Thralls were green-skinned, heavily decaying humanoids. They wore a golden helmet and shoulder pads with gloves and a short red kilt[Soul Reaver 2].
Sorcerer Thralls were the ranged attackers of the Thrall variants. In combat they would remain at a distance and 'spit' magical fireballs at Raziel from long-range to assist their allies. When approached, Sorcerer Thralls would attempt to flee or retreat back underground; but they would attack with their claws if cornered. Sorcerer Thralls were physically weak enemies; able to absorb little damage and with weak melee attacks (though repeated fireballs could cause major damage)[Soul Reaver 2][Soul Reaver 2 manual][Soul Reaver 2 strategy guide (Prima)].
Because of their role, Sorcerer Thralls were only seen in the shrines and forges sacred to the Ancient vampires. They were first encountered in the Dark Forge in the Pre-Blood Omen era and were later seen in the Light Forge. Sorcerer Thralls would again be encountered in the Air Forge in the Era following Blood Omen[Soul Reaver 2][Soul Reaver 2 strategy guide (Prima)].
- The long range 'fireball spit' attack used by the Sorcerer thralls notably resembles the Grave Spit attack used by the Human revenants in Legacy of Kain: Defiance[Soul Reaver 2][Defiance][Defiance strategy guide].
- Thralls are noted as "undead warriors" who are "charged to eternally guard Nosgoth's ancient shrines"[Soul Reaver 2 manual][Soul Reaver 2 strategy guide (Prima)] but the method of their re-animation is not elaborated. Given the places they guard, it would seem likely that the Thralls were Ancient vampire creations, though the thralls themselves, although humanoid, do not visually appear to be Ancient Vampire remains[Soul Reaver 2]. In Legacy of Kain: Defiance, similar Ancient Vampire locations would be protected by Feral Humans and the similarly 'animated' statues Vampire Golems and Guardian Constructs [Defiance][Defiance strategy guide].
- Historically, Thralls were slaves in the Viking age of Scandinavia (and the root of the word "enthrall").