John Constantine is an occult detective from Liverpool, England. His violent and anti-social attitude makes him a formidable anti-hero, and he's known for doing whatever it takes to get the job done.


Constantine was born in Liverpool, England. When he was a child, he first began to experiment with magic when somebody told him about a spell that would make him a powerful magician. However, the person didn't tell him that the spell required a sacrifice and, while performing it, his family home caught fire and killed his mother and father.^[​2]

When he was a young adult, Constantine was a wild, silver-tongued punk with no idea what he was destined to become. Though he always had a knack for being a conman, Constantine had continued to dabble in magic from his childhood, showing interest in anything of the occult but never getting serious enough for it to be anything more than a hobby.^[​3]


John at one point began dating a police officer named Margaret Ames, having had sex in a bar bathroom not long after meeting one another. The two further bonded by going on amateur magical adventures together until Constantine decided she deserved a normal life and left her without explanation.^[​4]

Later, Constantine and his first love Veronica Delacroix formed a mystical-themed punk band named "Mucous Membrane" with their friend Gaz Lester. The three lived the rock-star lifestyle for a while and also began getting more serious with the magic they were interested in practicing together until, eventually, everything hit the fan when a spell went wrong caused Delacroix to slowly lose her connection to the mortal world and Constantine was unable to stop it. The band, in turn, fell apart, and Constantine became more determined to focus on his skills as a magician.^[​5]