 Louis HaywardEdward Jekyll / Dr. Henry Jekyll / Mr. Hyde | Edward Jekyll / Dr. Henry Jekyll / Mr. Hyde |
 Jody LawranceLynn Utterson | Lynn Utterson |
 Alexander KnoxDr. Curtis Lanyon | Dr. Curtis Lanyon |
 Lester MatthewsSir John Utterson | Sir John Utterson |
 Gavin MuirEditor Richard Daniels | Editor Richard Daniels |
 Paul CavanaghInspector Stoddard | Inspector Stoddard |
 Rhys WilliamsMichaels, Butler | Michaels, Butler |
 Victor AdamsonCoachman (uncredited) | Coachman (uncredited) |
 Patrick AherneTenement Landlord (uncredited) | Tenement Landlord (uncredited) |
 Matthew BoultonInspector Grey (uncredited) | Inspector Grey (uncredited) |
 Hamilton CampWilliam Bennett (uncredited) | William Bennett (uncredited) |
 Claire CarletonHazel Sorelle (uncredited) | Hazel Sorelle (uncredited) |
 Patrick O'MooreJoe Sorelle (uncredited) | Joe Sorelle (uncredited) |
 Doris LloydLottie Sorelle (uncredited) | Lottie Sorelle (uncredited) |
 Wheaton ChambersMagistrate (uncredited) | Magistrate (uncredited) |
| DDavid ColeCopy Boy (uncredited) | Copy Boy (uncredited) |
| AAlec HarfordClerk (uncredited) | Clerk (uncredited) |
 Robin HughesAlec (uncredited) | Alec (uncredited) |
 Olaf HyttenProsecutor (uncredited) | Prosecutor (uncredited) |
 Joyce JamesonBarmaid (uncredited) | Barmaid (uncredited) |
| SStapleton KentMr. Arnim (Uncredited) | Mr. Arnim (Uncredited) |
 Bruce LesterDaniels' Reporter (uncredited) | Daniels' Reporter (uncredited) |
 Leonard MudiePharmacist (uncredited) | Pharmacist (uncredited) |
| VVesey O'DavorenUtterson's Butler (uncredited) | Utterson's Butler (uncredited) |
| HHarry MartinDetective (uncredited) | Detective (uncredited) |
 Holmes HerbertConstable (uncredited) | Constable (uncredited) |
| LLeslie DenisonConstable (uncredited) | Constable (uncredited) |
| KKeith HitchcockConstable (uncredited) | Constable (uncredited) |
| JJames LoganConstable (uncredited) | Constable (uncredited) |
| GGuy KingsfordNurse (uncredited) | Nurse (uncredited) |
