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