Russ Mayberry Director Hugh O'Brian Hugh Lockwood Actor Elke Sommer Heideline `'Uli'` Ullman Actor John Gielgud Harold L. Streeter Actor Burgess Meredith V.C.R. Cameron Actor Angel Tompkins Gloria Harding Actor Lilia Skala Frieda Ullman Actor Kent Smith Dr. Edward Laurent Actor Alfred Ryder Cheyne Actor Ben Wright Kurt von Niestat Actor Jules Maitland Reinhardt M. Brugge Actor Robert Boon Felix Ernst Actor Leslie Stevens Producer