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

Duke 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)