ArtStation - Crushader, Quang Hoang
Diablo Ash by Amdhuscias.deviantart.com on @DeviantArt
It is told, in the old legends, that a Dragon may often walk as a man... If this is true, then this is surely how he would look.[Alexander Beresnevich]
Postmortem Purgatory, Ramses Melendez on ArtStation at https://www.artstation.com/artwork/lraD5
Cool Character Design, Demon. #characterdesign #conceptart [http://www.pinterest.com/alfredchong/]
The Demon King, Chaos. He also lords over monstrous creatures such as Shadow People and their Shadow Beasts along with Hell Hounds.
The Monkey King is Back by ChaoyuanXu on DeviantArt
Hastur, Great Old One, "The Unspeakable", "He Who is Not to be Named" and "The King in Yellow"
((Open character)) Kaine's father is a demon king and the mafia leader of one of the largests mafias in Gotham. The only people he loves are his son and wife