크레딧 출연 Colin Baker The Doctor 보니 랭퍼드 Mel Bush Michael Jayston The Valeyard Lynda Bellingham The Inquisitor Anthony Ainley The Master Tony Selby Sabalom Glitz Geoffrey Hughes Popplewick James Bree Keeper of the Matrix 스텝 Jane Baker Writing Chris Clough Directing Pip Baker Writing Robert Holmes Writing John Nathan-Turner Production Eric Saward Writing John Nathan-Turner Writing Ian Fraser Production Andrew Rose Costume & Make-Up Dominic Glynn Sound Jane Wellesley Production Dick Mills Crew Danny Popkin Visual Effects Shaunna Harrison Costume & Make-Up Don Babbage Lighting Dave Chapman Visual Effects Brian Clark Sound Hugh Parson Editing John Mason Lighting Michael Trevor Art Alec Wheal Camera Kevin Molloy Visual Effects Vic Godrich Sound