Helen Horton: Helen Horton. Actress: Alien. Helen Horton was born on 21 November 1923 in Chicago, Illinois, USA. She was an actress, known for Alien (1979), Superman III (1983) and Phase IV (1974). She was married to Hamish Thomson. She died on 28 September 2007 in Vero Beach, Florida, USA.
Known For: Alien (Mother(voice)), Superman III (Miss Henderson), Phase IV (Mildred Eldridge), ITV Television Playhouse (Clarice MorrisonMattie Hobbs)