| Cast | Jon Pertwee (as The Doctor), Katy Manning (as Jo Grant), Nicholas Courtney (as Brigadier Lethbridge-Stewart), Richard Franklin (2) (as Captain Mike Yates), John Levene (as Sergeant Benton), Roger Delgado (as The Master), David Garth (as Time Lord), Michael Wisher (as Rex Farrel), Stephen Jack (as Farrel Snr.), Barbara Leake (as Mrs. Farrel), Harry Towb (as McDermott), Christopher Burgess (as Professor Phillips), Frank Mills (2) (as Radio Telescope Director), Andrew Staines (as Goodge), Dermot Tuohy (as Brownrose), John Baskcomb (as Rossini), Roy Stewart (as Strong Man), Dave Carter (as Museum Attendant), Bill McGuirk (as Policeman), Pat Gorman (as Auton Leader), Terry Walsh (as Auton Policeman), Norman Stanley (as Telephone Mechanic) |
