Cast & crew
The Secret Six (1931)
Directed by George W. Hill Written by Frances Marion
Cast
| Johnny Mack Brown | Hank Rogers |
| Wallace Beery | Louis 'Slaughterhouse' Scorpio |
| Lewis Stone | Richard 'Newt' Newton - Attorney at Law |
| Jean Harlow | Anne Courtland |
| DeWitt Jennings | Chief of Police Donlin |
| Murray Kinnell | Metz - the Dummy |
| Fletcher Norton | Jimmy Delano |
| Louis Natheaux | Eddie |
| Frank McGlynn Sr. | Judge |
| Marjorie Rambeau | Peaches |
| Paul Hurst | Nick Mizoski - the Gouger |
| Clark Gable | Carl Luckner |
| Ralph Bellamy | Johnny Franks |
| John Miljan | Joe Colimo |
| Lynton Brent | Reporter (uncredited) |
| Charles Giblyn | Mr. Simms - Ballistics Expert (uncredited) |
| Joseph W. Girard | Official (uncredited) |
| Betty Lawson | Undertermined Secondary Role (uncredited) |
| Tom London | Blackjacking Gangster (uncredited) |
| George Magrill | Police Guard at Jailhouse (uncredited) |
| Lee Phelps | Smelts - Waiter (uncredited) |
| Oscar Rudolph | Ivan Colimo (uncredited) |
| Theodore von Eltz | District Attorney Keeler |
| Hector Sarno | Finko (uncredited) |
| Carol Tevis | Manicurist (uncredited) |
| Walter Walker | Onlooker in Courtroom (uncredited) |
| S.D. Wilcox | Protesting Man in Courtroom (uncredited) |
Crew
| George W. Hill | Producer |
| Blanche Sewell | Editor |
| Harold Wenstrom | Director of Photography |
| Edgar G. Ulmer | Production Design |
| Cedric Gibbons | Art Direction |
| Frances Marion | Writer |
| George W. Hill | Director |
| Irving Thalberg | Producer |