Carl Brisson
King Rudolf XIV / Carlo Rocco
Mary Ellis
Elaine, the Queen of Langenstein
Edward Everett Horton
Count Josef 'Peppi' von Schlapstaat
Katherine DeMille
Fraülein Mimi
Eugene Pallette
Conrad Q. Conley
Arnold Korff
Baron Kraemer, Lord Chamberlain
Marina Koshetz
Steffi
Rosita
Ilonka
Stanley Andrews
Count Batthy
Jane Wyman
Chorine on Train (uncredited)
Edwin Maxwell
First Gentleman