Cast & crew
Duck Soup (1933)
Directed by Leo McCarey Written by Bert Kalmar, Harry Ruby, Arthur Sheekman, Nat Perrin
Cast
| Groucho Marx | Rufus T. Firefly |
| Margaret Dumont | Gloria Teasdale |
| Harpo Marx | Pinky |
| Chico Marx | Chicolini |
| Zeppo Marx | Bob Roland |
| Raquel Torres | Vera Marcal |
| Louis Calhern | Ambassador Trentino |
| Edmund Breese | Zander |
| Leonid Kinskey | Sylvanian Agitator |
| Charles Middleton | Prosecutor |
| Wade Boteler | Officer at Battle Headquarters (uncredited) |
| Edgar Kennedy | Street Vendor |
| Edward Arnold | Politician (uncredited) |
| Sidney Bracey | Mrs. Teasdale's Butler (uncredited) |
| E.H. Calvert | Officer in Battle Sequence (uncredited) |
| Davison Clark | Minister of Finance #2 (uncredited) |
| Carrie Daumery | Reception Guest (uncredited) |
| Maude Turner Gordon | Reception Guest (uncredited) |
| Louise Closser Hale | Reception Guest (uncredited) |
| Florence Wix | Reception Guest (uncredited) |
| Mario Dominici | Minister (uncredited) |
| Joseph Crehan | Dignitary at Reception (uncredited) |
| Edmund Mortimer | Minister (uncredited) |
| Charles West | Minister (uncredited) |
| Verna Hillie | Trentino's Blonde Secretary (uncredited) |
| George MacQuarrie | First Judge (uncredited) |
| Frederick Sullivan | Second Judge (uncredited) |
| Edward LeSaint | Secretary of Labor (uncredited) |
| Eric Mayne | Third Judge (uncredited) |
| Edwin Maxwell | Freedonia's Secretary of War #1 (uncredited) |
| Leo Sulky | Agitator (uncredited) |
| William Worthington | First Minister of Finance (uncredited) |
| Dennis O'Keefe | Bridegroom at Firefly's Reception (uncredited) |
| Dale Van Sickel | A Palace Guard (uncredited) |
Crew
| Herman J. Mankiewicz | Producer |
| Harry Ruby | Music |
| Leo McCarey | Director |
| Bert Kalmar | Music |
| Henry Sharp | Director of Photography |
| LeRoy Stone | Editor |
| Bert Kalmar | Writer |
| Harry Ruby | Writer |
| Arthur Sheekman | Writer |
| John Leipold | Original Music Composer |
| Wiard B. Ihnen | Art Direction |
| Hans Dreier | Art Direction |
| Nat Perrin | Writer |
| Cliff Shirpser | First Assistant Camera |
| Dale Van Sickel | Stunts |
| Edward Dmytryk | Assistant Editor |
| Harry Lindgren | Sound Engineer |
| Bert Kalmar | Lyricist |
| Arthur Johnston | Music |
| Bert Kalmar | Story |
| Arthur Sheekman | Additional Dialogue |
| Nat Perrin | Additional Dialogue |
| Harry Ruby | Lyricist |
| Harry Ruby | Story |