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 Chris Clough Directing Robert Holmes Writing Jane Baker Writing Philip Baker Writing Eric Saward Writing John Nathan-Turner Production John Nathan-Turner Writing Andrew Rose Costume & Make-Up Michael Trevor Art Dominic Glynn Sound Shaunna Harrison Costume & Make-Up Jane Wellesley Production Ian Fraser Production Dick Mills Crew Alec Wheal Camera Don Babbage Lighting Brian Clark Sound John Mason Lighting Vic Godrich Sound Dave Chapman Visual Effects Danny Popkin Visual Effects Hugh Parson Editing Kevin Molloy Visual Effects Dominic Glynn Sound