Azazel, also known as the Yellow-Eyed Demon, is the tyrannical ruler of the demons in the TV series Supernatural, and the main antagonist for the first two seasons. He was portrayed by Fredric Lehne in most of his appearances, by Rob LaBalle in a flashback in Season 4, by Jeffrey Dean Morgan while possessing John Winchester, and by Mitch Pileggi while possessing Samuel Campbell. It is later revealed that he was one of Four Princes of Hell, the most powerful demons of hell, just under Lucifer and Lilith.