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Louis Hayward as Edward Jekyll / Dr. Henry Jekyll / Mr. Hyde |
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Jody Lawrance as Lynn Utterson |
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Alexander Knox as Dr. Curtis Lanyon |
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Lester Matthews as Sir John Utterson |
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Gavin Muir as Editor Richard Daniels |
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Paul Cavanagh as Inspector Stoddard |
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Rhys Williams as Michaels, Butler |
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Victor Adamson as Coachman (uncredited) |
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Patrick Aherne as Tenement Landlord (uncredited) |
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Matthew Boulton as Inspector Grey (uncredited) |
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Hamilton Camp as William Bennett (uncredited) |
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Claire Carleton as Hazel Sorelle (uncredited) |
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Patrick O'Moore as Joe Sorelle (uncredited) |
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Doris Lloyd as Lottie Sorelle (uncredited) |
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Wheaton Chambers as Magistrate (uncredited) |
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David Cole as Copy Boy (uncredited) |
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Alec Harford as Clerk (uncredited) |
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Robin Hughes as Alec (uncredited) |
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Olaf Hytten as Prosecutor (uncredited) |
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Joyce Jameson as Barmaid (uncredited) |
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Stapleton Kent as Mr. Arnim (Uncredited) |
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Bruce Lester as Daniels' Reporter (uncredited) |
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Leonard Mudie as Pharmacist (uncredited) |
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Vesey O'Davoren as Utterson's Butler (uncredited) |
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Harry Martin as Detective (uncredited) |
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Holmes Herbert as Constable (uncredited) |
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Leslie Denison as Constable (uncredited) |
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Keith Hitchcock as Constable (uncredited) |
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James Logan as Constable (uncredited) |
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Guy Kingsford as Nurse (uncredited) |
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Ottola Nesmith as Nurse (uncredited) |
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David Dunbar as Man in a Bar (uncredited) |
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Frank Hagney as Man in a Bar (uncredited) |
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Phyllis Morris as Tea Woman (uncredited) |
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Betty Fairfax as Woman in Window (uncredited) |
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Ida MacGill as Woman (uncredited) |
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Ola Lorraine as Woman (uncredited) |
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Carol Savage as Woman (uncredited) |
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Benita Booth as Woman (uncredited) |
| Directing | Seymour Friedman | Director |
| Sound | Paul Sawtell | Original Music Composer |
| Camera | Henry Freulich | Director of Photography |
| 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 |
| Writing | Mortimer Braus | Story |
| Writing | Jack Pollexfen | Story |
