The Ambassadors of Death, Part One

Jon Pertwee The Third Doctor Caroline John Elizabeth "Liz" Shaw Nicholas Courtney Alistair Gordon Lethbridge-Stewart John Levene Sergeant Benton Derek Ware Unit Sergeant Robert Robertson Collinson GS Gordon Sterne Heldorf Derek Ware Astronaut CC Carl Conway Control Room Assistant Michael Wisher John Wakefield JL John Lord Masters Ronald Allen Ralph Cornish Robert Cawdron Taltalian Roy Scammell Technician WD William Dysart Reegan CM Cheryl Molineaux Miss Rutherford Max Faulkner Unit Soldier JC James Clayton Private Parker TH Tony Harwood Flynn JM Juan Moreno Dobson JH James Haswell Corporal Champion RF Ric Felgate Van Lyden JR Joanna Ross Control Room Assistant BM Bernard Martin Control Room Assistant Geoffrey Beevers Private Johnson RF Ric Felgate Astronaut NS Neville Simons Michaels NS Neville Simons Astronaut SP Steve Peters Lefee SP Steve Peters Astronaut PN Peter Noel Cook Alien Space Captain DC Dallas Cavell Quinlan RA Ray Armstrong Grey Peter Halliday Alien Voices Cyril Shaps Lennox JA John Abineri Carrington