Photo Flash: CONSTANTINE's Matt Ryan Poses with Fan Look-A-Likes at San Diego Comic-Con

In Constantine, Matt Ryan stars as the titular character, which follows enigmatic and irreverent Liverpool con-man-turned-occult-detective John Constantine, who is reluctantly thrust into the role of defending our world against dark forces from beyond. Ryan posed with Constantine look-a-likes at this year's San Diego Comic-Con. Scroll down to see a picture!

Featured in hundreds of comic book issues, John Constantine has been a DC Comics staple since his first appearance as a supporting character in Swamp Thing in 1985. The character was subsequently featured in his own bestselling Hellblazer and Constantine comic book series.

Constantine is executive produced by Daniel Cerone (The Mentalist, Dexter) and David S. Goyer (The Dark Knight films, Man of Steel). Neil Marshall (The Descent, Game of Thrones) is directing from a teleplay by Daniel Cerone, with story by Daniel Cerone & David S. Goyer.

Constantine airs Fridays on NBC (10-11 p.m. ET/PT). The series premiere is set for October 24.