Deag Nilox

Deag Nilox is a character in Doom Eternal and one of three Hell Priests.

He once served as a holy Sentinel Priest in Argent D'Nur and had been the first to discover and manipulate the gateways to Hell. However, he became corrupted by Hell's influence and the taste of Argent Energy and now follows the orders of the Khan Maykr.

Doom Eternal
The Doom Slayer stormed Deag Nilox's fortress and slayed him with a help a holy medallion. His severed head is later placed in the Fortress of Doom as a trophy of the Doom Slayer.