What If Constantine and Lucifer were apart of the Invasion crossover? Would they have been a good help to our heroes against the Dominators? : r/arrow
NYCC: Matt Ryan Open to Returning as Constantine on Arrow
Show's Producers Think Constantine Could Appear on CW's Arrow
Matt Ryan's Constantine Confirmed to Appear on 'Arrow'
John Constantine | Legends of Tomorrow | Powers and Fight Scenes - YouTube
Arrow "Haunted" Preview Clip Screencaps - With John Constantine! | GreenArrowTV
Matt Ryan's CONSTANTINE To Appear On ARROW! - Nerdy Rotten Scoundrel
Like Magic Constantine Will Rise From the Dead on CW Seed As an Animated Series
What to Watch: Constantine Meets Arrow, CMA Awards and More | TVLine
Black Canary and John Constantine - Arrow Season 4 Episode 5 - TV Fanatic
Constantine adds to mystical 'Arrow' season
Constantine Resurrected on 'Arrow,' Improves Ratings - mxdwn Television
Arrow,' 'Constantine,' and the Ingredients of a Perfect TV Crossover | | Observer
Arrow/Constantine crossover: Matt Ryan heading to Starling City | EW.com
ARROW Season 4, Episode 5 Description; "Haunted" - 'John Constantine' Arrives In Star City
Arrow enlists Constantine to restore Sara's soul | EW.com
Arrow' Meets 'Constantine' in 1st 'Haunted' Crossover Photo
