Nyarlathotep, the Crawling Chaos, is arguably the best known of the Outer Gods created by H.P. Lovecraft for his Cthulhu Mythos. Unusually for an Outer God, Nyarlathotep is actively aware of humanity and even takes something of a direct interest in us. Unfortunately, he's a manipulative dick. Basically, think of him as Lovecraft's take on Satan and you've pretty much got him in a nutshell. His most unique defining trait is that he has countless Avatars, each with its own unique name, title and horrific appearance.