The Beast of Yucca Flats (released to television as Atomic Monster: The Beast of Yucca Flats) is a 1961 B-movie horror film written and directed by Coleman Francis. It was produced by Anthony Cardoza, Roland Morin and Jim Oliphant. The film stars Swedish former wrestler Tor Johnson as "the Beast". It starred Anthony Cardoza, Coleman Francis and Jim Oliphant in bit parts, as well as Conrad Brooks in a very small role. Director Francis cast his two sons (Ronald and Alan Francis) in the film as the two lost boys.