Oliver Reed (Dr. Heckyl / Mr. Hype) previously appeared in The Two Faces of Dr. Jekyll (1960), another adaptation of Robert Louis Stevenson's 1886 novella "Strange Case of Dr. Jekyll and Mr. Hyde".
Actor-comedian Tony Cox appeared in both early 1980s 'Jekyll and Hyde' spoof movies, 'Dr. Heckyl and Mr. Hype' (1980) and 'Jekyll and Hyde... Together Again' (1982), playing Bad William and a Lawn Jockey respectively.
Final film of Lucretia Love.
The film is based on a book The Strange Case of Dr Jekyll and Mr Hyde is an 1886 novella by Scottish author Robert Louis Stevenson [1850-1894]. This movie is a direct remake of the 1931 movie, Dr. Jekyll and Mr. Hyde (1931), utilizing the screenplay originally written by screenwriters Samuel Hoffenstein and Percy Heath with adaptations for this movie by American screenwriter John Lee Mahin.
Besides the 1931, 1941 and 1920 versions. There are more versions of this film with the same name in particular in the silent era.