Azathoth

Azathoth is a cosmic entity and the leader of the Great Old Ones in an unknown cosmic realm. David Bowman described his brief encounter with Azathoth when he accidentally crossed into its realm. Azathoth then engulfed Bowman's pod, causing Bowman to pass out from the cold. Bowman then awoke from a deep hibernation in the Pacific Ocean. It is debated whether or not Azathoth gave Bowman his enhanced abilities.

A drawing of Azathoth can been seen in Randolph Carter's Cthulhu shrine next to the safe where Randolph keeps the statue.