Richard Attenborough (Col. John Daintry)
John Gielgud (Brigadier Tomlinson)
Joop Doderer (Cornelius Muller)
Derek Jacobi (Arthur Davis)
Robert Morley (Doctor Percival)
Ann Todd (Castle's Mother)
Marianne Stone (Matron)
Angela Thorne (Mary Hargreaves)
Tony Vogel (Matthew Connolly)
Frank Williams (Bellamy)
Anthony Woodruff (Dr. Barker)
Paul Seed (Shop Assistant)
Glenna Forster-Jones
Paul Curran (Halliday)
Edward Dentith (Edward)
Brian Epsom
Patrick O'Connell (Reader)
Keith Marsh (Porter)
Sean Caffrey (Policeman)
Tom Chatto (General Phipps)
Sylvia Coleridge (Mrs. Halliday)
Adrienne Corri (Sylvia)
Robert Dorning (Jameson)
Clifford Earl (Ferguson)
Gary Forbes (Sam)
Fiona Fullerton (Elizabeth)
Leon Greene (Tall Man)
Denys Hawthorne (Inspector Butler)
Anthony Haygarth (Buffy)
Cyd Hayman (Cunthia)
Boris Isarov (Agent)
Ken Jones (Messenger)
Martin Benson (Borls)
Nicol Williamson (Maurice Castle)
Richard Vernon (Sir John Hargreaves)
Iman (Sarah)