Constantine (stylized as Cons♰antįne) is an American occult detective drama television series developed by Daniel Cerone and David S. Goyer that aired for one season on NBC, it premiered on October 24, 2014 and concluded on February 13, 2015.

Based on the DC Comics character of the same name, it stars Matt Ryan as the eponymous John Constantine, an English exorcist and occult detective who hunts supernatural entities.

Although the series was canceled after its first season, Ryan would reprise his role in the Arrowverse franchise, which retroactively established Constantine as part of the same continuity.

John Constantine, a demon hunter and dabbling master of the occult, must struggle with his past sins while protecting the innocent from the converging supernatural threats that constantly break through to our world due to the "Rising Darkness".

Balancing his actions upon the line of good and evil, Constantine uses his skills and a supernatural scry map to journey across the nation to send these terrors back to their own world, all for the hope of redeeming his soul from eternal torment.

On October 30, 2015, Daniel Cerone released a script for the fourteenth episode, titled "Final Girl", which would have aired if the series had not been canceled.

[18] The on-screen depiction of Constantine's chain-smoking habit was said to be curtailed because of broadcast television restrictions[19][20] (the network eventually becomes more lenient and John is shown smoking on screen in later episodes).

Additionally, the character's bisexuality was not referenced on screen,[21] with Cerone saying, "In those comic books, John Constantine aged in real time.

[22] Griffiths was cast as the original female lead Liv Aberdine, the daughter of a late friend of John's called Jasper Winters, who comes to discover that she has the ability of seeing the supernatural world among us.

[27] In mid-April 2015, Cerone stated it was "a long shot" that the series would be renewed, adding "While we marginally improved a tough time slot for NBC, we're a very expensive show to produce.

A lot of NBC's decision making will not [sic] doubt hinge on their new pilots and how they feel those new shows would fare as a companion piece to Grimm, versus a second season of Constantine".

The website's consensus reads, "Constantine's creepy atmosphere, high-stakes action, and splendid special effects combine with a welcome touch of humor to overcome narrative flaws and present a version of the title character that's close to his comics counterpart".

He criticized Lucy Griffiths performance, saying that "unless she was being bribed to kill the show stone dead like an old-time boxer paid to take a fall, there's no way she could have been worse in the part", but praised Ryan, saying that he "brought a certain gravelly charm to the role".

[47] DC Entertainment released a clay stop motion animation web series called John Con Noir.

[65][66] The first chapter was released on January 16, 2015 on the DC Comics official website and YouTube account, in addition to the mid-season premiere on NBC.

[69] In August 2015, it was confirmed that Ryan would appear on Arrow in the fourth season episode "Haunted", that involved his character being "brought in to deal with the fallout of the resurrection of Sara Lance (Caity Lotz) via Ra's al Ghul's Lazarus Pit".

[73] On filming the episode, Guggenheim stated it felt like the production team was "doing a Constantine/Arrow crossover, and it's so exciting... We're just really glad we got the chance to extend Matt Ryan's run as Constantine by at least one more hour of television.