Succubus

The Succubus was a type of demon encountered by Chas Chandler during an incident on a freight train in Pennsylvania.

History
At some point of time before John Constantine's team's adventures to investigate the Rising Darkness, John and Chas had a mission on a freight train moving through Pennsylvania that involved a Succubus. The incident ended with the derailment of the trait, which was blamed on Chas, who was given a warrant at the State of Pennsylvania, making him unwilling to travel there anymore.

Behind the scenes

 * In mythology, Succubus is a feminine demon that hunts for life energy, praying on the desires of men.