Cast

• Robert Young
  Robert Young (actor)
  Robert George Young was an American television, film, and radio actor, best known for his leading roles as Jim Anderson, the father of Father Knows Best and as physician Marcus Welby in Marcus Welby, M.D. .-Early life:Born in Chicago, Illinois, Young was the son of an Irish immigrant father...
  
   as Anton Erban
• Helen Gilbert as Duchess Diana
• Charles Coburn
  Charles Coburn
  Charles Douville Coburn was an American film and theater actor.-Biography:Coburn was born in Macon, Georgia, the son of Scots-Irish Americans Emma Louise Sprigman and Moses Douville Coburn. Growing up in Savannah, he started out doing odd jobs at the local Savannah Theater, handing out programs,...
  
   as Dr. Johannes Hofer
• Lee Bowman
  Lee Bowman
  Lee Bowman was an American film and television actor.Born in Cincinnati, Ohio, Bowman graduated from the American Academy of Dramatic Arts in 1936 and began his film career playing a bit part in Swing High, Swing Low .His many film appearances include A Man to Remember , Love Affair , Third...
  
   as Archduke Oliver
• Reginald Owen
  Reginald Owen
  John Reginald Owen was a British character actor. He was known for his many roles in British and American movies and later in television programs.-Personal:...
  
   as Emperor Franz Josef