John Constantine (/ˈkɒnstəntaɪn/) is a fictional character, an antihero appearing in comic books published by DC Comics. The character first appeared in Swamp Thing (vol. 2) #37 (June 1985), and was created by Alan Moore, Steve Bissette, and John Totleben. He serves as the lead character of the comic books Hellblazer (1988–2013) and Constantine (2013–).The titular Hellblazer, Constantine is a working-class magician, occult detective, and con man stationed in London. He is known for his endless cynicism, deadpan snarking, ruthless cunning, and constant chain smoking, but is also a passionate humanist driven by a heartfelt desire to do some good in his life. Originally a supporting character who played a pivotal role in the "American Gothic" Swamp Thing storyline, Constantine received his own comic in 1988. Pop artist Sting served as visual inspiration for the character. A live-action film was also released in 2005 entitled Constantine, where an Americanized version of character is played by actor Keanu Reeves. Welsh actor Matt Ryan was cast in the role of Constantine for a 2014 NBC television pilot.The Hellblazer series was the longest-running and most successful title of DC's Vertigo imprint. Empire Magazine ranked Constantine third in their 50 Greatest Comic Characters of All Time, while IGN ranked him #29 in their Top 100 Comic Book Heroes, and the character ranked #10 in Wizard Magazine's Top 200 Comic Book Characters of All Time.