Kulak is a DC Comic Books Villain, and an enemy of Doctor Fate.
For aeons, Kulak was a high priest of the world of Brztal. For whatever reasons, Kulak decided to use his sorcery to destroy civilizations on many worlds. Under unknown circumstances Kulak was somehow imprisoned millennia ago on the planet Earth.
Years Later, archaeologists managed to find the Tomb of Kulak. They accidently opened Kulak's tomb, when that happened Kulak awoke, broke free from his prison, and attempted to destroy the Earth. Because of this, Kulak became an enemy towards Doctor Fate.