Grelok

Grelok is a fictional character created by Hubris Comics and a villain in the Grognak the Barbarian series.

Background
A monster with a horned head, Grelok took over several large villages surrounding a mountain, and Grognak set out to defeat him. Grelok also had the power to rejuvenate individuals and turn them into zombies. Grelok was later defeated by Grognak, and peace was returned to the world.

Appearances
Grelok is mentioned in Fallout 3. He is also the main villain in the Fallout 4 holodisk minigame Grognak the Barbarian and the Ruby Ruins.