Dr. Jekyll believes good and evil exist in everyone and creates a potion that allows his evil side, Mr. Hyde, to come to the fore. He faces horrible consequences when he lets his dark side run amok.
| Writing | Samuel Hoffenstein | Screenplay |
| Costume & Make-Up | Jack Dawn | Makeup Artist |
| Editing | Harold F. Kress | Editor |
| Sound | Daniele Amfitheatrof | Original Music Composer |
| Art | Edwin B. Willis | Set Decoration |
| Production | Victor Saville | Producer |
| Writing | John Lee Mahin | Screenplay |
| Writing | Robert Louis Stevenson | Novel |
| Costume & Make-Up | Adrian | Costume Design |
| Camera | Joseph Ruttenberg | Director of Photography |
| Writing | Percy Heath | Screenplay |
| Directing | Victor Fleming | Director |
| Art | Cedric Gibbons | Art Direction |
| Crew | Warren Newcombe | Special Effects |
| Sound | Mario Castelnuovo-Tedesco | Original Music Composer |
| Sound | Franz Waxman | Original Music Composer |
| Production | Keith Weeks | Unit Manager |
