Ruth Gordon Jones was an American actress, screenwriter, and playwright. She began her career performing on Broadway at age 19. Known for her nasal voice and distinctive personality, Gordon gained international recognition and critical acclaim for film roles that continued into her 70s and 80s. Her later work included performances in Rosemary's Baby (1968), What Ever Happened to Aunt Alice? (1969), Where's Poppa? (1970), Harold and Maude (1971), Every Which Way But Loose (1978), Any Which Way You Can (1980), and My Bodyguard (1980).

Rosemary's Baby is a 1968 American psychological horror film written and directed by Roman Polanski, based on Ira Levin's 1967 novel of the same name. The film stars Mia Farrow as a newlywed living in Manhattan who becomes pregnant, but soon begins to suspect that her neighbors are members of a Satanic cult who are grooming her in order to use her baby for their rituals. The film's supporting cast includes John Cassavetes, Ruth Gordon, Sidney Blackmer, Maurice Evans, Ralph Bellamy, Patsy Kelly, Angela Dorian, and Charles Grodin in his feature film debut.