Dolores del Río as Dolores Daria Sunnel

George Sanders as Baron Kurt von Rohback / Lt. Michael Bruce

Peter Lorre as Maj. Sigfried Gruning

Virginia Field as Joan Bruce

Sig Ruman as Lt. Col. Gottfried Hollen

Joseph Schildkraut as Prince Ferdi Zu Schwarzwald

Maurice Moscovitch as Gen. Von Meinhardt

Lionel Atwill as Col. Fenwick

Luther Adler as Schratt

Fritz Feld as Fritz Mueller

Lester Matthews as Capt. Neville

Carlos De Valdez as Von Klingen

Gregory Gaye as Capt. Freymann

Claude King as Captain

Joan Carrol as Elizabeth Bruce

Lynn Bari as Miss Fenwick

Colin Clive as Col. Fenwick (rehearsed only) (uncredited)

John Burton as Lieutenant (uncredited)