Hastur - The King in Yellow by megaflow
Here we have Haster, from the Call of Cthulhu game (and the Lovecraft mythos, of course). This is the cover for the Unspeakable Tales booster box, so you should be seeing it in fine gaming stores near you right about now. (There was another version of the UT box floating around on the internet, but it's the pre-production mockup. THIS is the real thing!) This is also the Hastur card in the Unspeakable Tales set.