Maurice Chevalier

Dr. Andre Bertier

Jeanette MacDonald

Colette Bertier

Genevieve Tobin

Mitzi Olivier

Charles Ruggles

Adolph

Roland Young

Professor Olivier

Josephine Dunn

Mademoiselle Martel

Richard Carle

Henri Dornier - Private Detective

Barbara Leonard

Mitzi's Maid

George Barbier

Police Commissioner

Lita Chevret

Party Guest (uncredited)