| Person | Type | Job | Role(s) |
|---|---|---|---|
 David O. Selznick | Crew | Production | Producer |
 James Wong Howe | Crew | Camera | Director of Photography |
 John V.A. Weaver | Crew | Writing | Screenplay |
 Lyle R. Wheeler | Crew | Art | Art Direction |
Margaret Clancey | Crew | Editing | Editor |
 Mark Twain | Crew | Writing | Novel |
 Marshall Neilan | Crew | Writing | Writer |
 Max Steiner | Crew | Sound | Music |
 Norman Taurog | Crew | Directing | Director |
 Walter Plunkett | Crew | Costume & Make-Up | Costume Designer |
Roy Clark | Crew | Camera | Assistant Camera |
 Ann Gillis | Cast | Actress | Becky Thatcher |
 Arthur Aylesworth | Cast | Actor | Defense Attorney (uncredited) |
 Charles Richman | Cast | Actor | Judge Thatcher |
 Cora Sue Collins | Cast | Actress | Amy Lawrence |
 Donald Meek | Cast | Actor | Sunday School Superintendent |
Donnie Allen | Cast | Schoolboy | |
Jimmy Zahner | Cast | Boy | |
 Lon McCallister | Cast | Actor | Schoolboy |
 Luke Cosgrave | Cast | Actor | Old Soldier |
 Marcia Mae Jones | Cast | Actress | Mary Sawyer |
 Margaret Hamilton | Cast | Actress | Mrs. Harper |
 May Robson | Cast | Actress | Aunt Polly |
 Mickey Rentschler | Cast | Actor | Joe Harper |
 Nana Bryant | Cast | Actress | Mrs. Thatcher |
 Olin Howland | Cast | Actor | Mr. Dobbins - Schoolmaster |
 Philip Hurlic | Cast | Actor | Little Jim |
 Spring Byington | Cast | Actress | Widow Douglas (uncredited) |
 Tommy Bupp | Cast | Actor | Schoolboy |
 Tommy Kelly | Cast | Actor | Tom Sawyer |
 Victor Jory | Cast | Actor | Injun Joe |
 Victor Kilian | Cast | Actor | Sheriff |
 Walter Brennan | Cast | Actor | Muff Potter |
 Jackie Moran | Cast | Actor | Huckleberry Finn |
 David Holt | Cast | Actor | Sid Sawyer |
Tom Braunger | Cast | Schoolboy | |
Hugh Chapman | Cast | Actor | Schoolboy |
Frank Bellan | Cast | Schoolboy | |
Louis Brenn | Cast | Schoolboy | |
Jackie Butler | Cast | Schoolboy | |
Byron Armstrong | Cast | Actor | Willy Fisher |
| Person | Type | Job | Role(s) |
