Isle of the Snake People is a 1971 Mexican horror film directed by Juan Ibáñez and starring Boris Karloff and Julissa. The film was produced by Ibanez for Azteca Films. The film was released as La muerte viviente in the United States as a Spanish-language film. It was later dubbed in English but received little theatrical distribution, and was then released for television. The film is also known as Cult of the Dead (in Hungary) and Snake People (in the United Kingdom).