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