Archduke Paul 'Gustl' Gustave
Ramon Novarro
Elizabeth Katherine Anne 'Lisl' Gluck
Evelyn Laye
Max - the Waiter (uncredited)
Max Barwyn
Undetermined Role (uncredited) (unconfirmed)
Art Berry Sr.
Mueller (uncredited)
Albert Conti
Milkman (uncredited)
George Davis
Adjutant (uncredited)
Carlos De Valdez
Chico De Verdi
Coronetist (uncredited)
Billy Dooley
Duchess of Reidheim (uncredited)
Elspeth Dudgeon
Undetermined Role (uncredited)
Kay English
Riccardi (uncredited)
Charles Judels
Willy Fitch
Charles Butterworth
Dowager at Opera House (uncredited)
Edith Kingdon
Messenger from Restaurant (uncredited)
Michael Mark
Torben Meyer
Drummer (uncredited)
Harry 'Snub' Pollard
Café Proprietor (uncredited)
Christian Rub
Charles Unger
Ambassador (uncredited)
Gustav von Seyffertitz
Fanni Kerner
Una Merkel
Baron Szereny
Edward Everett Horton
Toni Berngruber
Donald Cook
Emperor Franz Josef
Henry Stephenson
Countess Zarika Rafay
Rosalind Russell
Nepomuk
Herman Bing
Florine Baile
Sound Recordist
Douglas Shearer
Story
Vicki Baum
Director
Dudley Murphy
Producer
Harry Rapf
Conductor
Herbert Stothart
Set Decoration
Edwin B. Willis
Art Direction
Director of Photography
James Wong Howe
Musical
Oscar Hammerstein II
Cedric Gibbons
Screenplay
Edgar Allan Woolf
Franz Schulz
Editor
Conrad A. Nervig
Music
Sigmund Romberg
Orchestrator
Oscar Radin
Jack Virgil
Wayne Allen
Wardrobe Master
Dolly Tree
Fredric Hope
Choreographer
Chester Hale
R. H. Bassett
Charles Maxwell
Henry Grace
Paul Marquardt
Leonid Raab