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