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".
This led to producer Phil Collinson stating that Grantham was unhappy with the portrayal of the monster because he had envisioned it being "the size of a double-decker bus", but this information was not shared with the production team. Peter Kay wrote a letter to Davies in June 2005, and Davies responded in September by offering him a guest spot in an episode. Initially, Kay was offered the role of Elton, but he declined it as he felt his character on Coronation Street bore too much resemblance to the "UFO-spotter" part.