| Person | Type | Job | Role(s) |
|---|---|---|---|
 Abraham Grossman | Crew | Art | Art Direction |
Ben Pivar | Crew | Production | Executive Producer |
Bernard Schubert | Crew | Writing | Screenplay |
 Clyde Beatty | Crew | Crew | Stand In |
Edward Dein | Crew | Writing | Screenplay |
Edward R. Robinson | Crew | Art | Set Decoration |
 Frank Skinner | Crew | Sound | Music |
Hans J. Salter | Crew | Sound | Music |
Henry Sucher | Crew | Writing | Screenplay, Story |
Jack MacKenzie | Crew | Camera | Director of Photography |
 Jack Pierce | Crew | Costume & Make-Up | Makeup Artist |
John B. Goodman | Crew | Art | Art Direction |
Melville Shyer | Crew | Directing | Assistant Director |
Paul Sawtell | Crew | Sound | Original Music Composer, Music Director |
Ray Snyder | Crew | Editing | Editor |
 Reginald Le Borg | Crew | Directing | Director |
 Richard Hageman | Crew | Sound | Music |
Russell A. Gausman | Crew | Art | Set Decoration |
Vera West | Crew | Costume & Make-Up | Costume Design |
Will Cowan | Crew | Production | Associate Producer |
Ralph Freed | Crew | Sound | Music |
Paul Van Loan | Crew | Sound | Music |
 Acquanetta | Cast | Actress | Paula Dupree, the Ape Woman |
 Alec Craig | Cast | Actor | Caretaker |
 Beatrice Roberts | Cast | Actress | Inquest Juror (uncredited) |
Charles Marsh | Cast | Actor | Inquest Juror (uncredited) |
 Christian Rub | Cast | Actor | George |
Clyde Beatty | Cast | Actor | Fred Mason (in long shots) (archive footage / uncredited) |
 Douglass Dumbrille | Cast | Actor | District Attorney |
 Edward Clark | Cast | Actor | Inquest Juror (uncredited) |
 Evelyn Ankers | Cast | Actress | Beth Mason |
 Fern Emmett | Cast | Actress | Beth's Neighbor (archive footage / uncredited) |
 Heinie Conklin | Cast | Actor | Inquest Juror (uncredited) |
 J. Carrol Naish | Cast | Actor | Dr. Carl Fletcher |
 John Carradine | Cast | Actor | Dr. Sigmund Walters (archive footage / uncredited) |
 Lois Collier | Cast | Actress | Joan Fletcher |
 Milburn Stone | Cast | Actor | Fred Mason |
 Nana Bryant | Cast | Actress | Miss Gray |
 Nolan Leary | Cast | Actor | Inquest Juror (uncredited) |
 Pierre Watkin | Cast | Actor | Dr. Meredith |
 Ray Corrigan | Cast | Actor | Cheela (archive footage / uncredited) |
 Ray Walker | Cast | Actor | Ringmaster (archive footage / uncredited) |
 Samuel S. Hinds | Cast | Actor | Coroner |
 Tom Keene | Cast | Actor | Joe, the Fingerprint Man |
 Vince Barnett | Cast | Actor | Curley (archive footage / uncredited) |
 Wilson Benge | Cast | Actor | Court Stenographer (uncredited) |
Edward M. Hyans Jr. | Cast | Willie | |
Diane Carroll | Cast | Inquest Juror (uncredited) | |
| Person | Type | Job | Role(s) |
