While all the current Marvel Comics television series fit within the studio’s larger cinematic universe, DC Comics television has been split into multiple universes (though they could all exist in a multiverse). Fox is home to the Batman prequel series, Gotham, while NBC housed Constantine, based on the Hellblazer comics from DC’s Vertigo imprint. Meanwhile, The CW is building its own DC Comics universe with Arrow, The Flash, and the upcoming Legends of Tomorrow. Additionally, more series are in the works at CBS, TNT, and AMC.
Though it’s still possible for Fox, CW, and NBC to pull their DC shows together into a shared universe, the networks haven’t made any indication it’s a real possibility. Now, with Constantine canceled by NBC and looking to move elsewhere, one DC TV show star is offering some incentive to revive the Hellblazer series.
Oliver Queen himself and star of Arrow, Stephen Amell, took to Twitter in an effort to #SaveConstantine, offering his time to guest star on a revitalized Constantine. Matt Ryan, who portrayed John Constantine in the NBC series, joined in to comment on exploring the possible dynamic between the two actors’ characters.
Read the full exchange:
#SaveConstantine -- Hey TV Networks / Netflix and the like... If you pick up the show, I'll guest star.— Stephen Amell (@amellywood) May 9, 2015
It should be noted that Oliver Queen and John Constantine only cross paths once in the whole of DC Comics history. Neil Gaiman, who included Constantine in his Sandman comics for Vertigo, also added Hellblazer as an extra to the “Whatever Happened to the Caped Crusader?” story; the short scene entails a brief interaction between Constantine and Queen in a pub.
Though the characters may not have a dynamic that was established in the comics, an Oliver Queen cameo in Constantine wouldn’t be the first time a superhero TV series diverged from its source material. Additionally, Arrow has made a habit of adapting and altering aspects of its comic origins and characters.
Still, Amell’s offer and Ryan’s enthusiasm shouldn’t be taken as a serious indication of a crossover just yet. For it to happen, another network (or Netflix, as Amell suggests) would need to pick up Constantine, and that network would need to reach an agreement with The CW in order for Amell’s version of Oliver Queen to appear.
Of course, that’s not to say a crossover hasn’t crossed the minds of others involved with Constantine. Following the cancellation, Constantine producer Daniel Cerone tweeted about the future of the series, particularly bringing attention to one fan who entreated CW pick up the show.
While that may seem a viable option to some, it’s also unlikely. When The CW had the chance to house Supergirl, they turned it down in favor of building a universe from characters established on Arrow – Barry Allen (Grant Gustin) appeared in a season 2 episode before headlining The Flash, and many stars of Legends of Tomorrow will have been introduced in either of its predecessors.
The network seems to have a very clear plan, one that doesn’t involve picking up an already-established series with extremely loose ties to its growing universe. Additionally, if Constantine gets a second life at a different network, it would seem unlikely that Amell would be able to guest star unless a special agreement is reached.
That being said, comic book TV shows are changing the landscape of TV – such as Agents of S.H.I.E.L.D. as an extension of a Marvel’s cinematic universe on the small screen – and inter-network shared universes may become a possibility because of Supergirl, Arrow, and The Flash. So there’s still a possibility Amell and Ryan’s crossover could happen, albeit a very, very small possibility.
Arrow continues Wednesday with its season 3 finale “My Name Is Oliver Queen” @8PM on The CW. The Flash continues Tuesday with “Rogue Air” @8PM on The CW. Gotham returns for season 2 in the Fall. Supergirl will premiere on CBS in the Fall. We’ll keep you updated on the status of Constantine.