The son of the notorious Dr. Henry Jekyll is determined to prove that his father's reputation has been unjustly deserved. He sets out to develop his father's formula in order to prove that he was a brilliant scientist rather than a murderous monster.
| Directing | Seymour Friedman | Director |
| Sound | Paul Sawtell | Original Music Composer |
| Camera | Henry Freulich | Director of Photography |
| Writing | Mortimer Braus | Story |
| Writing | Jack Pollexfen | Story |
| Sound | Paul Mertz | Original Music Composer |
| Editing | Gene Havlick | Editor |
| Art | Walter Holscher | Art Direction |
| Art | William Kiernan | Set Decoration |
| Costume & Make-Up | Jean Louis | Costume Design |
| Costume & Make-Up | Clay Campbell | Makeup Artist |
| Costume & Make-Up | Helen Hunt | Hairstylist |
| Directing | James Nicholson | Assistant Director |
| Sound | Jack A. Goodrich | Sound Engineer |
| Crew | Paul Baxley | Stunt Double |
| Sound | Morris Stoloff | Music Director |
