Cast
Basil Rathbone
Professor Aristide
Torben Meyer
Thief at Ball (uncredited)
Jack Chefe
Ball Guest (uncredited)
Wilbur Mack
Ball Guest (uncredited)
Scott Seaton
Ball Guest (uncredited)
Jean-Pierre Aumont
Pierre de Roche
Adolphe Menjou
Ambassador
Melville Cooper
Roland Latour
Richard Neill
Ball Guest (uncredited)
Ginger Rogers
Arlette Lafron
Mikhail Rasumny
Yves Cadubert
Eduardo Ciannelli
Ferdinand Dvorak
Mona Maris
Ambassador's Wife
Adolph Faylauer
Ball Guest (uncredited)
Bess Flowers
Ball Guest (uncredited)
Ivan Lebedeff
Thief at Ball (uncredited)
Louis Mercier
Thief in Film Within the Film (uncredited)
Henry Stephenson
Minister
William Frambes
Student (uncredited)