| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bert Kalmar | Crew | Writing | Screenplay, Original Music Composer, Lyricist |
Harry Ruby | Crew | Writing | Screenplay, Original Music Composer, Lyricist |
 Herman J. Mankiewicz | Crew | Production | Producer |
 Norman Z. McLeod | Crew | Directing | Director |
Ray June | Crew | Camera | Director of Photography |
S.J. Perelman | Crew | Writing | Screenplay |
Will B. Johnstone | Crew | Writing | Screenplay |
Arthur Sheekman | Cast | Typing Sportswriter (uncredited) | |
 Ben Taggart | Cast | Actor | Police Officer (uncredited) |
 Bobby Barber | Cast | Actor | Speakeasy Patron (uncredited) |
 Chico Marx | Cast | Actor | Baravelli |
 David Landau | Cast | Actor | Jennings |
 E.H. Calvert | Cast | Actor | Professor in Wagstaff's Study (uncredited) |
 Edgar Dearing | Cast | Actor | Speakeasy Bartender (uncredited) |
 Florine McKinney | Cast | Actress | Peggy Carrington (uncredited) |
 Frank Rice | Cast | Actor | Doorman at Speakeasy (uncredited) |
 Groucho Marx | Cast | Actor | Professor Wagstaff |
 Harpo Marx | Cast | Actor | Pinky |
 James Pierce | Cast | Actor | Ed Mullen (uncredited) |
 Nat Pendleton | Cast | Actor | MacHardie (uncredited) |
 Phil Tead | Cast | Actor | Football Broadcaster (uncredited) |
 Reginald Barlow | Cast | Actor | Retiring Collage President (uncredited) |
 Robert Greig | Cast | Actor | Biology Professor (uncredited) |
 Sheila Bromley | Cast | Actress | Wagstaff's Receptionist (uncredited) |
 Syd Saylor | Cast | Actor | Speakeasy Patron at Slot Machine (uncredited) |
 Thelma Todd | Cast | Actress | Connie Bailey |
 Theresa Harris | Cast | Actress | Laura (uncredited) |
 Vince Barnett | Cast | Actor | Speakeasy Patron (uncredited) |
 Zeppo Marx | Cast | Actor | Frank Wagstaff |
 Edward LeSaint | Cast | Actor | Professor in Wagstaff's Study (uncredited) |
| Person | Type | Job | Role(s) |
