John Constantine

John Constantine is the title character in the Constantine series and part of the Arrowverse fandom.

Character
John Constantine is a man waging war against the forces of darkness — from both within himself and the outside world. An irreverent, working-class con man and occult expert, he’s an experienced exorcist and demonologist with an extensive list of supernatural contacts, with their own paranormal talents and abilities.

Following the aftermath of a tragic incident, Constantine has voluntarily checked himself into an asylum and sworn off investigating matters of the supernatural. But when a cryptic message calls him out to reluctantly resume his old life, he finds himself allying with Manny, a rogue warrior angel, and Chas, Constantine’s giant childhood protector — the only friend who’s managed to stay alive.

Slash

 * Chasstantine — the ship between Chas Chandler and Constantine
 * Coldblazer — the ship between Constantine and Leo Snart
 * Coldstantine — the ship between Leonard Snart and Constantine
 * Constarrow — the ship between Constantine and Oliver Queen
 * Constatom - the ship between Constantine and Ray Palmer
 * Hellwave — the ship between Mick Rory and Constantine

Het

 * ConstanQueen – the ship between Thea Queen and Constantine
 * Flynnstantine – the ship between Anne Marie Flynn and Constantine
 * Hellcanary - the ship between Constantine and Sara Lance
 * JohnZee — the ship between Constantine and Zatanna Zatara
 * Smoakstantine — the ship between Felicity Smoak and Constantine

Fandom
AO3

DEVIANTART
 * johnconstantine tag

TUMBLR

Trivia

 * In the comics, Constantine is bisexual, but not in the NBC series
 * It was announced that during his appearance on Legends of Tomorrow, he would be confirmed as bisexual