In this Dan Curtis production of the Robert Louis Stevenson classic, Jack Palance stars as Dr. Henry Jekyll, a scientist experimenting to reveal the hidden, dark side of man, who, in the process of his experiment, releases a murderer from within himself.
Jack Palance
as Dr. Jekyll/Dr.Hyde
Denholm Elliott
as George Devlin
Leo Genn
as Dr. Lanyon
Torin Thatcher
as Sir Turnbull
Rex Sevenoaks
as Dr. Wright
Gillie Fenwick
as Poole der Butler
Elizabeth Cole
as Hattie
Duncan Lamont
as Sergt. Grimes
Paul Harding
as Constb. Johnston
Oskar Homolka
as Stryker
Billie Whitelaw
as Gwyn Thomas
William Nunn
as Cassidy
