Spectral spirits of the deceased. They resemble see-through, often bluish versions of who they were in life. Most ghosts are harmless reflections of what they were when they still lived, and are invisible to normal eyes. But this is not always the case. Ghosts who have a strong desire for revenge are often tied to the physical plane by that desire. Some ghosts are even forced to remain in the physical plane by an outside force, or tied to the physical by an inanimate object they cherished when alive (such as some of the more powerful Kirin’Tor mages in Netherstorm). Such ghosts are generally hostile, and not only are capable of damaging fully corporeal/living creatures, but will attack and do so on sight.

Unlike wraiths and shades, it’s easily possible to see which race a ghost belonged to while it was living because despite being bluish and see-through, there is little difference in their appearance as they were in life, and their race is clearly identifiable.