The CW's Arrow did fans of DC Comics' "John Constantine" and NBC's canceled series Constantine a solid by bringing Matt Ryan's conceited conjurer into the mix in Season 4. However, another character from the defunct occult antihero show might also be making an appearance on the upcoming season of Arrow if recent casting news and social media posts from the show's production team are any indication.

Fans of Constantine might remember a character by the name of James Corrigan, briefly played in a couple of appearances by Emmett J Scanlan. Comic book know-it-alls know that Corrigan's alter ego is another DC Comics' superhero, but we never got to see that transformation take full effect during the small-screen adaptation's run. Perhaps Arrow will rectify that.

Image via NBC[/caption]

Now, let's combine "vengeance" with "James" and the character's description, and you get: The Spectre, a.k.a. The Spirit of Vengeance. The origin story of this 1940 creation is a pretty dark one: hard-boiled cop James Corrigan was murdered mafia-style by being stuffed into a cement-filled barrel and then drowned. He couldn't avoid death, but his spirit was turned away at the entrance to the afterlife; he was sent back to Earth as a vengeful force, first turning his wrath upon those responsible for his murder.

Image via DC Comics[/caption]