John Constantine is an antihero who appears in American comic books published by DC Comics. Constantine first appeared in The Saga of Swamp Thing #37, and was created by Alan Moore, Rick Veitch, Steve Bissette, and John Totleben. He serves as the lead character of the comic books Hellblazer (1988–2013), Constantine (2013–2015), Constantine: The Hellblazer (2015–2016), The Hellblazer (2016–2018), and John Constantine: Hellblazer (2020-2021).