NBC Chairman Talks Tone of the Constantine TV Series

"I don't know the DC comic very well, but there is dark, interesting stuff in it, but it’s also got some witty banter. It's a fun tone, although the supernatural stuff is scary."

When asked if the "Constantine" series might at some point cross over with the other DC Comics-based series, including "Arrow" and "The Flash" at The CW and "Gotham" at Fox, Greenblatt replied: "Cross-network is really hard. It's hard enough to do it within your network. I think let us see how the pilot goes before we answer that question!"

Created by Alan Moore, John Constantine, a roguish magician/detective/conman, first appeared during the author's run on "Swamp Thing" in 1985, receiving his own series, "Hellblazer," under DC's Vertigo imprint in 1988. That book ran for 300 issues before it was relaunched in DC's "New 52" continuity as "Constantine" with a younger take on the antihero.