Onder andere met: Peter Cushing (Gustav Weil), Kathleen Byron (Katy Weil), Mary Collinson (Maria Gellhorn), Madeleine Collinson (Frieda Gellhorn), David Warbeck (Anton Hoffer), Damien Thomas (Count Karnstein), Katya Wyeth (Countess Mircalla), Roy Stewart (Joachim), Isobel Black (Ingrid Hoffer), Harvey Hall (Franz), Alex Scott (Hermann)