Générique complet
La soupe au canard
Groucho Marx
Rufus T. Firefly
Harpo Marx
Pinky
Chico Marx
Chicolini
Zeppo Marx
Bob Roland
Margaret Dumont
Gloria Teasdale
Raquel Torres
Vera Marcal
Louis Calhern
Ambassador Trentino
Edmund Breese
Zander
Leonid Kinskey
Sylvanian Agitator
Charles Middleton
Prosecutor
Edgar Kennedy
Street Vendor
Edward Arnold
Politician (uncredited)
Wade Boteler
Officer at Battle Headquarters (uncredited)
Sidney Bracey
Mrs. Teasdale's Butler (uncredited)
E.H. Calvert
Officer in Battle Sequence (uncredited)
Davison Clark
Minister of Finance #2 (uncredited)
Louise Closser Hale
Reception Guest (uncredited)
Carrie Daumery
Reception Guest (uncredited)
Maude Turner Gordon
Reception Guest (uncredited)
Florence Wix
Reception Guest (uncredited)
Joseph Crehan
Dignitary at Reception (uncredited)
Mario Dominici
Minister (uncredited)
Edmund Mortimer
Minister (uncredited)
Verna Hillie
Trentino's Blonde Secretary (uncredited)
Edward LeSaint
Secretary of Labor (uncredited)
George MacQuarrie
First Judge (uncredited)
Frederick Sullivan
Second Judge (uncredited)
Eric Mayne
Third Judge (uncredited)
Edwin Maxwell
Freedonia's Secretary of War #1 (uncredited)
Dennis O'Keefe
Bridegroom at Firefly's Reception (uncredited)
Leo Sulky
Agitator (uncredited)
Dale Van Sickel
A Palace Guard (uncredited)
William Worthington
First Minister of Finance (uncredited)
Réalisation
Scénario
Harry Ruby
Scénario, Histoire, Lyricist
Bert Kalmar
Scénario, Lyricist, Histoire
Nat Perrin
Scénario
Arthur Sheekman
Scénario
Production
Image
Montage
Son et musique
Bert Kalmar
Musique
Harry Ruby
Musique
John Leipold
Musique
Harry Lindgren
Sound Engineer
Arthur Johnston
Musique