Groucho Marx
Role: Rufus T. Firefly
Chico Marx
Role: Chicolini
Zeppo Marx
Role: Bob Roland
Margaret Dumont
Role: Gloria Teasdale
Raquel Torres
Role: Vera Marcal
Louis Calhern
Role: Ambassador Trentino
Edmund Breese
Role: Zander
Leonid Kinskey
Role: Sylvanian Agitator
Charles Middleton
Role: Prosecutor
Edgar Kennedy
Role: Street Vendor
Edward Arnold
Role: Politician (uncredited)
Wade Boteler
Role: Officer at Battle Headquarters (uncredited)
Sidney Bracey
Role: Mrs. Teasdale's Butler (uncredited)
E.H. Calvert
Role: Officer in Battle Sequence (uncredited)
Davison Clark
Role: Minister of Finance #2 (uncredited)
Louise Closser Hale
Role: Reception Guest (uncredited)
Carrie Daumery
Role: Reception Guest (uncredited)
Maude Turner Gordon
Role: Reception Guest (uncredited)
Florence Wix
Role: Reception Guest (uncredited)
Joseph Crehan
Role: Dignitary at Reception (uncredited)
Mario Dominici
Role: Minister (uncredited)
Edmund Mortimer
Role: Minister (uncredited)
Charles West
Role: Minister (uncredited)
Verna Hillie
Role: Trentino's Blonde Secretary (uncredited)
Edward LeSaint
Role: Secretary of Labor (uncredited)
George MacQuarrie
Role: First Judge (uncredited)
Frederick Sullivan
Role: Second Judge (uncredited)
Eric Mayne
Role: Third Judge (uncredited)
Edwin Maxwell
Role: Freedonia's Secretary of War #1 (uncredited)
Dennis O'Keefe
Role: Bridegroom at Firefly's Reception (uncredited)
Leo Sulky
Role: Agitator (uncredited)
Dale Van Sickel
Role: A Palace Guard (uncredited)
William Worthington
Role: First Minister of Finance (uncredited)