Jack Buchanan
— Count Rudolph Falliere / Rudy the Hairdresser
Jeanette MacDonald
— Countess Helene Mara
Claud Allister
— Prince Otto von Liebenheim
Zasu Pitts
— Bertha
Tyler Brooke
— Armand
John Roche
— Paul, the 'Real' Hairdresser
Lionel Belmore
— Prince Gustav von Liebenheim
Albert Conti
— Prince Otto's Companion / M.C.
Helen Garden
— Lady Mary in Stage Opera
Donald Novis
— Monsieur Beaucaire in Stage Opera
Erik Bey
— Lord Windorset
David Percy
— Harald
Billy Bevan
— Train Conductor (uncredited)
John Carroll
— Wedding Guest Officer (uncredited)
Frances Dee
— Receptionist (uncredited)
Max Barwyn
— Frenchman (uncredited)
Symona Boniface
— Opera Chorus Singer (uncredited)
Sidney Bracey
— Hunchback at Casino (uncredited)
Margaret Carthew
— Opera Chorus Singer (uncredited)
Geraldine Dvorak
— Casino Patron (uncredited)
Virginia Engels
— Opera Chorus Singer (uncredited)
Antonio Filauri
— Opera Chorus Singer (uncredited)
Bess Flowers
— Bridesmaid / Opera Chorus Singer (uncredited)
June Glory
— Opera Chorus Singer (uncredited)
Beatrice Hagen
— Opera Chorus Singer (uncredited)
Leonid Kinskey
— Opera Chorus Singer (uncredited)
Edgar Norton
— Minor Role (uncredited)
Elizabeth Pendleton
— Opera Chorus Singer (uncredited)
Rolfe Sedan
— Hairdresser (uncredited)
Viola Webster
— Bridesmaid (uncredited)