Guest Stars Bill McGuirk as Policeman 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 Dermot Tuohy as Brownrose Michael Wisher as Rex Farrel Dave Carter as Museum Attendant Terry Walsh as Auton Policeman Pat Gorman as Auton Leader Hayden Jones as Auton Voice Harry Towb as McDermott
