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