Alignment: Neutral Evil
Their true name unknown, most lore refers to these beings as Plane Walkers. Thought to be Barbed Devils who gave up their position in the Infernal Hierarchy to be joined with a mortal Doppelganger, sometimes unwillingly. The result is a creature that can appear normal (to humanoids) in most circumstances but reverts to its original (Barbed Devil) form under certain extreme circumstances.
These creatures seek to corrupt mortals on Asmodeus’ behalf, ruthlessly negotiating terms of an agreement that the mortal all to often believes it can benefit from and ultimately get out of. Such contracts with the Plane Walkers are enforced by Asmodeus's will and any mortal that breaks this contract forfeits its soul and is spirited away to the Nine Hells.