During the first three seasons, the presenters/cast members were not credited by their actual names, but as their characters during the end credits. However, they all did receive a writers credit for 'additional dialogue' as they contributed the bulk of their own dialogue. Patrick Doyle, who played two different parts, left the cast before the start of the fourth season, and was therefore only credited on screen as a writer (as 'Pat Doyle') and not as an actor.