Synopsis
After a series of scientific experiments directed towards freeing the inner man and controlling human personalities, the kindly, generous Dr Henry Jekyll succeeds in freeing his own alter ego, Edward Hyde, a sadistic, evil creature whose pleasure is murder.
Cast

Paul Massie
Dr. Jekyll / Mr. Hyde

Dawn Addams
Kitty Jekyll

Christopher Lee
Paul Allen

David Kossoff
Dr. Littauer

Norma Marla
Maria

Francis de Wolff
Inspector

Joy Webster
Jenny

Magda Miller
Sphinx Girl (uncredited)

Oliver Reed
Nightclub Bouncer (uncredited)

Helen Goss
Nanny (uncredited)
Arthur Lovegrove
Cabby (uncredited)

Walter Gotell
Heverton - Second Gambler (uncredited)
Percy Cartwright
Coroner (uncredited)

John Bonney
Renfrew (uncredited)
Denis Cleary
Waiter (uncredited)
Doug Robinson
Boxer (uncredited)

Fred Stone
Cabinet Minister (uncredited)

Mackenzie Ward
Business Man (uncredited)

Rodney Burke
Young Blood (uncredited)
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