Trivia

There was a sub-plot (featured in the DVD) that featured Pete being seduced by a demon, played by Jo Joyner.

Russell T. Davies himself directed some of the second unit material featuring real-life television personalities such as Richard Madeley and Judy Finnigan and Trisha Goddard commenting on Steven Baxter, seen throughout the programme along with news reports featuring real-life newsreaders such as Jon Snow and Krishnan Guru-Murthy.

The directions that Judith finds on the street, having been earlier dropped by a possessed woman asking her for directions, lead her to a laboratory. The room number, R153, is the word 'rise', obviously connecting to the subject of the serial.

The scenes set in the former Manchester City Stadium on Maine Road were actually shot shortly before its closure and demolition. The ground is now a housing estate.

The change from four one-hour episodes to two ninety-minute instalments necessitated the cutting of much material from what would originally have been episode three, the opening half of the eventual second episode. Most of this material centred around Steve's friends and family being tested by the devil's servants as well as Steve's mother, who in the final edit is removed altogether and referred to only as having died some time beforehand. Some of this material was shot, and the scenes that did not make the programme were included as bonus features on the DVD release of the serial, released the week after the programmes's UK broadcast.