| Medvirkende |
| Dr. Hackenbush |
Groucho Marx |
| Tony |
Chico Marx |
| Stuffy |
Harpo Marx |
| Gil |
Allan Jones |
| Judy |
Maureen O'Sullivan |
| Fru Upjohn |
Margaret Dumont |
| Whitmore |
Leonard Ceeley |
| Morgan |
Douglass Dumbrille |
| 'Flo' |
Esther Muir |
| Dr. Steinberg |
Sig Ruman |
| Bag kameraet |
| Instruktion |
Sam Wood |
| Produktion |
Irving Thalberg, Lawrence Weingarten, Sam Wood |
| Manuskript |
Robert Pirosh, George Seaton, George Oppenheimer, Robert Pirosh, George Seaton, Al Boasberg, Al Boasberg, Leon Gordon, Leon Gordon, George S. Kaufman |
| Fotografi |
Joseph Ruttenberg, Leonard Smith |
| Klip |
Frank E. Hull |
| Musik |
Franz Waxman |
|
|
Forside
I biografen
