Garth Ennis is an Northern Ireland-born American comics writer, best known for the Vertigo series Preacher with artist Steve Dillon and his nine-year run on Marvel Comics' Punisher franchise. He has collaborated with artists such as Dillon and Glenn Fabry on Preacher, John McCrea on Hitman, Marc Silvestri on The Darkness, and Carlos Ezquerra on both Preacher and Hitman.