Cthulhu is a malevolent entity who hibernates somewhere beneath the ocean in the South Pacific. The imprisoned Cthulhu is the source of constant anxiety for mankind at a subconscious level, and also the subject of worship by a number of human religions.
Azathoth (Outer God of Primal Chaos). The Daemon Sultan: Azathoth is the ruler of the Outer Gods, and has existed since the universe began. He is a monstrous nuclear chaos, who dwells outside normal time and space. He is blind, idiotic, and indifferent.