Myrna Loy

as Annemarie, aka Fräulein Doktor and Helena Bohlen

George Brent

as Douglas Beall

Lionel Atwill

as Herr Von Sturm

C. Henry Gordon

as Ali Bey

Rudolph Anders

as Karl (as Rudolph Amendt)

Mischa Auer

as Ameel Roberts

Leo G. Carroll

as Kruger, #117 aka Bertram Church (uncredited)