Top Cast
Lilian Harvey
Chrystel
Conrad Veidt
Prince Metternich
Henri Garat
Alexander I
Lil Dagover
Countess
Gibb McLaughlin
Bibikoff
Reginald Purdell
Pepi
Philipp Manning
King of Saxony
Humberston Wright
Duke of Wellington
Helen Haye
Princess
Spencer Trevor
Finance Minister
Tarquini d'Or
Heurige Singer
Thomas Weguelin
Mayor of Vienna
Odette Talazac
Woman kissed on forehead by false Tsar (uncredited)