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Groucho Marx as Captain Jeffrey T. Spaulding |
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Harpo Marx as The Professor |
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Chico Marx as Signor Emanuel Ravelli |
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Zeppo Marx as Horatio Jamison |
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Lillian Roth as Arabella Rittenhouse |
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Margaret Dumont as Mrs. Rittenhouse |
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Louis Sorin as Roscoe Chandler |
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Hal Thompson as John Parker |
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Margaret Irving as Mrs. Whitehead |
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Kathryn Reece as Grace Carpenter |
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Robert Greig as Hives |
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Edward Metcalf as Hennessey |
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Robert Allen as House Party Guest (uncredited) |
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Donald MacBride as House Party Guest (uncredited) |
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Ann Roth as House Party Guest (uncredited) |
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Fredi Washington as Party Guest |
| Directing | Victor Heerman | Director |
| Writing | George S. Kaufman | Theatre Play |
| Writing | Morrie Ryskind | Theatre Play |
| Writing | Morrie Ryskind | Screenplay |
| Sound | Max Reese | Original Music Composer |
| Camera | George J. Folsey | Director of Photography |
| Art | Ernst Fegté | Art Direction |
| Sound | Ernest Zatorsky | Sound |
| Writing | Bert Kalmar | Theatre Play |
| Writing | Harry Ruby | Theatre Play |
| Directing | Pierre Collings | Continuity |
| Writing | George S. Kaufman | Writer |
