As in vampires there are also ranks withing the Wraiths, Specters are the most feared, they have only pain and fear as their companions and wish to spread their misery upon all living and unliving entity they encounter.
They can be divided into Castes, based on their function in serving oblivion.
From lowest to highest goes as follow:
- Mortwights: Spectres who suffered horrifying disfiguring deaths, succumbing to Oblivion at the moment of their death. Mortwights are given less respect because they never chose to serve Oblivion. The Mortwights see themselves as greater servants of Oblivion because they were always Oblivion's servants and were never deluded by a desire to avoid it.
- Haints: Spectres who died of famine, genocide, or some other atrocity, and enter the underworld as Spectres driven by insatiable hunger. Like Mortwights, the Haints are given lower status because they never chose to serve Oblivion. Mortwights and Haints are considered roughly equal.
- Doppelgangers: The most common Spectres, they are normally indistinguishable form other wraiths, acting as Oblivion's spies and inside operators. The doppelgangers are seen as lesser servants of Oblivion because of their relatively recent conversion to Oblivions service, and because it has not yet begun to mark their corpus.
- Apparitions: The evangelists of Oblivion, these Spectres seek to convert wraiths by preaching to their Shadows. Apparitions are Mortwights, Haints, or Doppelgangers whose corpus has begun to be re-wrought by the corrupting touch of Oblivion.
- Shades: Spectres whose personality was destroyed by Oblivion and the Tempest, and who exist as near-mindless predators in its depths. Used as shock troops by the spectres, these beasts are given greater respect because they have already partly succumbed to Oblivion.
- Nephwracks: The templars and high priests of the Malfeans and the bureaucrats and generals of the Labyrinth. Nephwracks are distinguished by corpuses distinctly and extensively marked by Oblivion.
- Hekatonkhire: The so-called "Thousand Handed Gods," long-lived shades of Onceborn-like power but no usable intelligence. Used in an almost siege-engine-like capacity by the Spectres, 3 Hekatonkhire were present at the siege of Stygia during the 3rd Great Maelstrom.
- The Malfeans themselves, God-Kings of Oblivion.