Carl Brisson

~ as ~

King Rudolf XIV / Carlo Rocco

Mary Ellis

~ as ~

Elaine, the Queen of Langenstein

Edward Everett Horton

~ as ~

Count Josef 'Peppi' von Schlapstaat

Katherine DeMille

~ as ~

Fraülein Mimi

Eugene Pallette

~ as ~

Conrad Q. Conley

Arnold Korff

~ as ~

Baron Kraemer, Lord Chamberlain

Marina Koshetz

~ as ~

Steffi

Rosita

~ as ~

Ilonka

Stanley Andrews

~ as ~

Count Batthy

Jane Wyman

~ as ~

Chorine on Train (uncredited)