Constantine is way too cool to be a supporting character.
No matter how much John drinks, he can always hold his booze.
In the '70s, Constantine became obsessed with The Sex Pistols and started his own punk band called "Mucous Membrane."
John Constantine was originally conceived as a blue-collar warlock.
John's most valuable weapon is his mind.
Constantine is only afraid of one thing: himself.
Constantine once conned the devil, then rubbed his face in it by giving him the finger.
The original Constantine (in the Vertigo Comics series) is one of the few comic book characters to age in real time.
Falling behind only Batman and Superman, Constantine was voted the 3rd most popular comic book character of all time.
Go to Hell with NBC's Constantine, premiering Friday, October 24 at 10/9c.