We learned yesterday that Matt Ryan’s John Constantine will crossover from his now-cancelled show onto Arrow this season. Since then we’ve learned how his appearance is vital to not just Arrow, but the forthcoming Legends of Tomorrow — as it’s all about the resurrection of Caity Lotz’s Sara Lance.
While talking to TV Insider, Arrow executive producer Marc Guggenheim said:
Unlike Thea, who wasn’t fully dead, the consequences of using the pit on someone as dead as Sara was creates some unforeseen difficulties, and John Constantine is uniquely suited to help our team deal with those.
Arrow comes back in October, and the John Constantine episode (which is entitled “Haunted”) will be the fifth in the season.
Via TV Insider