In the Dungeons & Dragons fantasy role-playing game, the devourer is a horrible undead creature which lurks on the Ethereal Plane and Astral Plane. It resembles a grey, horrible mutated, malnourished, sickly, shambling humanoid. The barely-there skin on its chest is opened up, revealing the completely dry and empty ribcage.

a special modification of a Mutalisk and was only integrated into the Zerg Swarm after the invasion of Aiur

someone who eats greedily or voraciously

One who, or that which, devours.