Cast and Crew
Cast 21
Groucho Marx
Dr. Hugo Z. Hackenbush
Chico Marx
Tony
Harpo Marx
Stuffy
Allan Jones
Gil Stewart
Maureen O'Sullivan
Judy Standish
Margaret Dumont
Emily Upjohn
Sig Ruman
Dr. Leopold X. Steinberg
Leonard Ceeley
Whitmore
Douglass Dumbrille
Morgan
Esther Muir
'Flo' Marlowe
Robert Middlemass
Sheriff
Vivien Fay
Specialty Dancer
Ivie Anderson
Specialty Singer
Gino Corrado
Man Boarding Bus (uncredited)
Bess Flowers
Racetrack Spectator (uncredited)
Bert Moorhouse
Racetrack Spectator (uncredited)
Frank O'Connor
Racetrack Guard (uncredited)
Carole Landis
Party Guest (uncredited)
Etta Moten
Black Singer (uncredited)
Dorothy Dandridge
Singer (uncredited)
Byron Foulger
Racetrack Spectator (uncredited)
Crew 21
Sam Wood
Directing
Irving Thalberg
Production
Robert Pirosh
Writing
Joseph Ruttenberg
Camera
Sam Wood
Production
Frank E. Hull
Editing
Lawrence Weingarten
Production
George Seaton
Writing
George Oppenheimer
Writing
Franz Waxman
Sound
Robert A. Golden
Directing
Leonard Smith
Camera
Cedric Gibbons
Art
Robert Pirosh
Writing
George Seaton
Writing
Edwin B. Willis
Art
Dolly Tree
Costume & Make-Up
Douglas Shearer
Sound
Bronislau Kaper
Sound
Walter Jurmann
Sound
Gus Kahn
Writing