Who's This? A rhymer.
How you could have heard of him: The Demon is not only still used regularly at DC Comics today, but has also appeared in all the cool animation projects - The Brave and the Bold, Justice League Action, Young Justice, The New Batman Adventures, Justice League (Unlimited and not), and the Justice League Dark movies. Arguably, of Kirby's 1970s DC creations, only Darkseid has enjoyed more visibility.
Example story: The Demon #40 (October 1993) "The Wild One" by Garth Ennis and John McCrea
Our story begins with some bikers trashing a church in Gotham City, one that looks like a Medieval castle, which is a perfect touch from McCrea - the Demon is/was an Arthurian character (in the DCU, at any rate, I don't remember him from La Morte). The desecration is all part of a ritual to summon a veritable Hell's Angel:
What are YOUR feelings about the Demon? Should he have a sick sense of humor, or be more dour? Do the rhymes bug you (like they evidently did John Byrne who did away with them)? And should Jason Blood welcome his partner's help, or act more like Bruce Banner? I've enjoyed various interpretations, what about you?
Who's Next? A snake in the grass.