Boris Karloff
Dr. Karl Mantell
Fear Chamber (La camara del terror/ The Room of Terror), also released as The Torture Zone, is a 1968 Mexican horror film directed by Juan Ibáñez and starring Boris Karloff and Julissa. It was filmed in May 1968, but was only released theatrically in 1971, 2 years after Karloff had died. Fear Chamber is one of four low-budget Mexican horror films Karloff made in a package deal with Mexican producer Luis Enrique Vergara. imdb.com