Sandra Knight is an American actress, painter and writer. She is best known for her work as an actor in low-budget films of the 1950s and 1960s, such as Frankenstein's Daughter, The Terror, where she plays an evil spirit, and Tower of London. Knight was married to Jack Nicholson from 1962 until 1968. They are the parents of one child together, Jennifer Nicholson. Knight later married Chizzy “The Mechanic” Knight.