John Constantine was a Liverpool native who spent his youth in a rock band alongside his life long friends Chas Chandler and Gaz. Eventually, he settled down, marrying Maureen and retired to Liverpool.
On his 30th birthday, John and his friends decided to brave through the invasion of their world by the aliens of Apokolips to celebrate at the local pub. During their celebration, however, John was weakened by the magic battle being held by the John Constantine of Prime Earth who had traveled between their worlds- causing him to pass out, overheat and hallucinate. The Prime Earth John had tricked the Wizard Wotan into trying to use him as a door while forgetting that a second John Constantine existed in Earth 2, causing Wotan to be torn in two between the Prime Earth and Earth 2 Constantines, splitting him in half, with the dismembered chest and head of the wizard falling out of the unconscious John, much to the horror of his friends and Maureen.
When the Prime Earth Constantine found his way to John's home in Liverpool, John attacked him in a fury, and in the ensuing struggle, awoke each other's memories in the other. Realizing that he's not a trick of Apokolips, John vouched for the alien Constantine, explaining to his family and friends that he's just a different John from a different universe, and that his magic made him a Wonder who could take them from Earth 2 to the safety of his home world. Before they could commit to anything, a pack of mindless looters, driven mad by the Apokolips signal, attacked John's house, forcing them to make a run for it through the streets of Liverpool. When one of the looters drew a gun on Constantine, the Earth Prime John jumped in front of the shot, protecting him. Taking shelter in an abandoned brick factory, where the Prime Earth John began to teach them to spread magic symbols across the factory to disguise themselves from the Parademons and prepare to take them across space to escape the dying Earth 2.
Despite their attempts to keep their magic to themselves, the Constantine's spell circles attracted the attention of Doctor Fate, who explained that the only way the Prime Earth John could power the spell would be to enslave himself to Fate in the future and increasing his power, or by killing the Earth 2 Constantine. The Prime Earth Constantine explained that John's soul was preventing him from completing the ritual, and convinced him to sacrifice himself for the good of his family, allowing John to stab him through the heart during a kiss goodbye, dying so that Maureen, Chas and his parents could live to see another day on Prime Earth.
- 4 Appearances of John Constantine (Earth 2)
- 4 Images featuring John Constantine (Earth 2)
- Quotations by or about John Constantine (Earth 2)
- Character Gallery: John Constantine (Earth 2)