Night of the Blood Beast is a 1958 American science-fiction horror film about a team of scientists who are stalked by an alien creature, which implants its embryos in an astronaut's body during a space flight. Produced by exploitation filmmaker Roger Corman and his brother Gene, it was one of the first films directed by Bernard L. Kowalski and was written by first-time screenwriter Martin Varno, who was 21 years old. It starred several actors who had regularly worked with Roger Corman, including Michael Emmet, Ed Nelson, Steve Dunlap, Georgianna Carter and Tyler McVey. The film was theatrically released in December 1958 as a double feature with She Gods of Shark Reef.