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)
Walter Gotell
Heverton - Second Gambler (uncredited)
John Bonney
Renfrew (uncredited)
Fred Stone
Cabinet Minister (uncredited)
Mackenzie Ward
Business Man (uncredited)
Rodney Burke
Young Blood (uncredited)
Arthur Lovegrove
Cabby (uncredited)
Percy Cartwright
Coroner (uncredited)
Denis Cleary
Waiter (uncredited)
Doug Robinson
Boxer (uncredited)
