| Person | Type | Job | Role(s) |
|---|---|---|---|
 Frank E. Hull | Crew | Editing | Editor |
 Franz Waxman | Crew | Sound | Original Music Composer |
 Hugo Butler | Crew | Writing | Writer |
 John F. Seitz | Crew | Camera | Director of Photography |
 Joseph L. Mankiewicz | Crew | Production | Producer |
 Mark Twain | Crew | Writing | Novel |
 Richard Thorpe | Crew | Directing | Director |
 Waldo Salt | Crew | Writing | Dialogue |
Alonzo Price | Cast | Actor | Deputy (uncredited) |
 Anne O'Neal | Cast | Actress | Miss Bartlett (uncredited) |
 Arthur Aylesworth | Cast | Actor | River Queen Pilot (uncredited) |
Billy Watson | Cast | Actor | Eliot (uncredited) |
 Clara Blandick | Cast | Actress | Miss Watson |
 Delmar Watson | Cast | Actor | Joe (uncredited) |
 E. Alyn Warren | Cast | Actor | Mr. Shackleford (uncredited) |
 Ed Brady | Cast | Actor | Man at the Show (uncredited) |
 Elisabeth Risdon | Cast | Actress | Widow Douglass |
 Erville Alderson | Cast | Actor | Sheriff at Jail (uncredited) |
 Frank Darien | Cast | Actor | Old Jailer (uncredited) |
 George Guhl | Cast | Actor | River Queen Engineer (uncredited) |
 Harlan Briggs | Cast | Actor | Mr. Rucker (uncredited) |
 Harry Cording | Cast | Actor | Man Stealing Watermelon (uncredited) |
Harry Watson | Cast | Actor | Ben Donaldson (uncredited) |
 Irving Bacon | Cast | Actor | Tad (uncredited) |
 Jesse Graves | Cast | Actor | Wilkes' Black Butler (uncredited) |
 Jo Ann Sayers | Cast | Actress | Susan |
Johnny Walsh | Cast | Actor | Sam (uncredited) |
 Leni Lynn | Cast | School Girl (uncredited) | |
 Lew Kelly | Cast | Actor | First Riverboat Pilot (uncredited) |
 Lynne Carver | Cast | Actress | Mary Jane |
 Mickey Rentschler | Cast | Actor | Harry (uncredited) |
 Mickey Rooney | Cast | Actor | Huckleberry Finn |
 Minor Watson | Cast | Actor | Capt. Brandy |
 Nora Cecil | Cast | Actress | Mrs. Shackleford (uncredited) |
 Rex Ingram | Cast | Actor | Jim |
 Robert Emmett Keane | Cast | Actor | Mr. Barklett the Lawyer (uncredited) |
 Roger Imhof | Cast | Actor | Judge Logan at Jim's Trial (uncredited) |
 Sarah Edwards | Cast | Actress | Annie Rucker (uncredited) |
 Sarah Padden | Cast | Actress | Woman Wanting Needle Threaded (uncredited) |
 Victor Kilian | Cast | Actor | 'Pap' Finn |
 Wade Boteler | Cast | Actor | First Riverboat Captain (uncredited) |
 Walter Connolly | Cast | Actor | The 'King' |
 William Frawley | Cast | Actor | The 'Duke' |
| Person | Type | Job | Role(s) |
