Onder andere met: Sophia Loren (Nora), George Peppard (Lt. John Curtis), Trevor Howard (Professor Lindemann), John Mills (General Boyd), Richard Johnson (Duncan Sandys), Tom Courtenay (Robert Henshaw), Jeremy Kemp (Phil Bradley), Anthony Quayle (Bamford), Lilli Palmer (Frieda), Paul Henreid (General Ziemann), Helmut Dantine (General Linz), Barbara Rütting (Hannah Reitsch (as Barbara Rueting)), Richard Todd (Wing Cmdr. Kendall), Sylvia Syms (Constance Babington Smith), John Fraser (Flight Lt. Kenny)