Dark Intruder is a 1965 horror TV movie that was released theatrically, and starring Leslie Nielsen, Mark Richman and Judi Meredith. The film is set in San Francisco in 1890 concerning playboy sleuth and occult expert Brett Kingsford. This atmospheric black-and-white film, only 59 minutes long, was directed by Harvey Hart and was the pilot for a failed television series called The Black Cloak. It was written by Barré Lyndon.

Peter Mark Richman was an American actor in films and on television, who was for many years credited as Mark Richman. He appeared in about 30 films and 130 television series from the 1950s until his retirement in 2011.