Groucho Marx
Dr. Hugo Z. Hackenbush
Cast (21)
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
Director
Robert Pirosh
Screenplay
George Seaton
Screenplay
George Oppenheimer
Screenplay
Sam Wood
Producer
Irving Thalberg
Producer
Lawrence Weingarten
Producer
Joseph Ruttenberg
Director of Photography
Frank E. Hull
Editor
Franz Waxman
Original Music Composer
Leonard Smith
Director of Photography
Cedric Gibbons
Art Direction
Robert A. Golden
Assistant Director
Robert Pirosh
Story
George Seaton
Story
Douglas Shearer
Sound Director
Edwin B. Willis
Art Department Assistant
Dolly Tree
Wardrobe Designer
Bronislau Kaper
Songs
Walter Jurmann
Songs
Gus Kahn
Lyricist