According to producer Phil Collinson, Grantham was disappointed with the rendering of the monster because he had envisaged it being "the size of a double-decker bus", but the production team was never informed of this. Peter Kay had written a letter to Davies after the new series began in June 2005, and Davies replied to him in September offering a guest spot in an episode. Kay was originally offered the part of Elton, but he felt the "UFO-spotter type" was too similar to his character on Coronation Street and much preferred playing the "baddie".
According to producer Phil Collinson, Grantham was dissatisfied with the rendering of the monster because he had envisioned it being "the size of a double-decker bus", but the production team was never informed of this. Peter Kay had written a letter to Davies after the new series began in June 2005, and Davies replied to him in September offering a guest spot in an episode. Kay was originally offered the part of Elton, but he felt the "UFO-spotter type" was too similar to his character on Coronation Street and much preferred playing the "villain".