 Hellblazer ( also known as John Constantine , Hellblazer ) is an American 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 is the <unk> magician John Constantine , who was created by Alan Moore and Stephen R. <unk> , 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 In 2013 , the series concluded with issue 300 , and has been replaced by a DC Universe title , Constantine . Well known for its political and social commentary , the series has spawned a film adaptation , television show , novels , multiple spin @-@ offs and <unk> . 
