크레딧 출연 Jon Pertwee The Doctor Patrick Troughton The Doctor William Hartnell The Doctor Katy Manning Jo Grant Nicholas Courtney Brigadier Lethbridge-Stewart John Levene Sergeant Benton Stephen Thorne Omega Rex Robinson Doctor Tyler Roy Purcell President of the Council Laurie Webb Mr. Ollis Clyde Pollitt Chancellor Graham Leaman Time Lord Patricia Prior Mrs. Ollis Denys Palmer Corporal Palmer 스텝 Lennie Mayne Directing Dave Martin Writing Bob Baker Writing Barry Letts Production Dudley Simpson Sound James Acheson Costume & Make-Up Ann Rayment Costume & Make-Up Jim Walker Editing John Baker Camera Derek Miller-Timmins Sound Roger Liminton Art Dick Mills Crew David Tilley Production Michealjohn Harris Visual Effects Delia Derbyshire Sound