Guest Stars Bill McGuirk as Policeman Terry Walsh as Auton Policeman Michael Wisher as Rex Farrel Dermot Tuohy as Brownrose Stephen Jack as Farrel Senior David Garth as Time Lord Norman Stanley as Telephone Mechanic Roy Stewart as Strong Man John Baskcomb as Rossini Christopher Burgess as Professor Philips Barbara Leake as Mrs. Farrel Andrew Staines as Goodge Frank Mills as Radio Telescope Director Dave Carter as Museum Attendant Pat Gorman as Auton Leader Hayden Jones as Auton Voice Harry Towb as McDermott
