Cthulhu

Cthulhu is a creation of H.P. Lovecraft, first appearing in the story The Call of Cthulhu in 1928. He is one of the main Great Old Ones of the Lovecraft Mythos, a race of alien deities that are comparable to cosmic beings and archdemons in other works of fantasy.

Cthulhu is known for his grotesque appearance and gigantic size, as well as his ability to drive anyone that gazes upon his form to insanity. While he is not the most powerful of Lovecraft's creations, he is one of the most famous, and his name has become associated with evil and Lovecraftian horror ever since the creature was first brought to public attention.