Juan López Moctezuma (May 19, 1932 – August 2, 1995) was a Mexican film director and actor. He was born in Mexico City in 1929. During his career he directed five films, all in the genres of supernatural horror and suspense: The Mansion of Madness (1973), Mary, Mary, Bloody Mary (1975), To Kill a Stranger (1984), El Alimento del Miedo (1994), and his most recognized and controversial work, Alucarda (1977), which tells the story of a satanic possession in a Catholic convent.