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