Full credits

On screen, in billing order

1. 1Chico Marx
2. 2David Landau
3. 3Groucho Marx
4. 4Harpo Marx
5. 5James Pierce
6. 6Nat Pendleton
7. 7Reginald Barlow
8. 8Robert Greig
9. 9Thelma Todd
10. 10Theresa Harris
11. 11Zeppo Marx

• Herman J. Mankiewicz