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

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)

Davison Clark

Minister of Finance #2 (uncredited)

Florence Wix

Reception Guest (uncredited)

Joseph Crehan

Dignitary at Reception (uncredited)

Edmund Mortimer

Minister (uncredited)

Verna Hillie

Trentino's Blonde Secretary (uncredited)

Eric Mayne

Third Judge (uncredited)

Edwin Maxwell

Freedonia's Secretary of War #1 (uncredited)

Dennis O'Keefe

Bridegroom at Firefly's Reception (uncredited)

Dale Van Sickel

A Palace Guard (uncredited)

William Worthington

First Minister of Finance (uncredited)