Hellblazer (also known as John Constantine, Hellblazer) was a contemporary horror comic book series, originally published by DC Comics, and subsequently by the Vertigo imprint since March 1993, when the imprint was introduced. Its central character was the streetwise magician John Constantine, who was created by Alan Moore, Steve Bissette and Jamie Delano, and first appeared as a supporting character in The Saga of the Swamp Thing #37 (June 1985), during that creative team's run on that title. Hellblazer had been published continuously since January 1988, and was Vertigo's longest running title, the only remaining publication from the imprint's launch. In 2013, the series concluded with issue 300, and has been replaced by a DC Universe title, Constantine. Hellblazer was often a stepping stone to many British writers. Many influential British comic book writers such as Jamie Delano, Garth Ennis, Paul Jenkins, Warren Ellis, Grant Morrison, Neil Gaiman, Andy Diggle, and Peter Milligan hav...