John Constantine

John Constantine, also known as Hellblazer, is an antihero who appears in American comic books published by DC Comics. He was created by Alan Moore, Steve Bissette, and, John Totleben, and first appeared in Swamp Thing #37 (June 1985). Initially a supporting character who played a pivotal role in the "American Gothic" Swamp Thing storyline, Constantine became popular with readers. As a result, he received his own comic in 1988 titled Hellblazer, which became the longest-running and most successful title of DC's Vertigo imprint…Wikipedia