Odile Versois as Anna Szobek David Knight as Ted Hutchens Joseph Tomelty as Moffatt David Kossoff as Geza Szobek Theodore Bikel as Joseph Paul Carpenter as Gregg Pearson Peter Illing as Dr. Weissbrod John McLaren as Col. Margetson Bernard Rebel as Stefan Jill Adams as Judy Betty Marsden as Mrs. Forrester Peter Dyneley as Regan Percy Herbert as Richards Dora Bryan as Switchboard Operator Sam Kydd as Driver Aubrey Mather as Waiter Victor Maddern as Sailor Robin Bailey as Thomas Cook cashier Joan Sims as Telephone Operator