Barbara Bain (born 13 September 1931) is an American actress.
Bain was born Millicent Fogel, in Chicago, Illinois. She graduated from the University of Illinois with a Bachelor's Degree in Sociology and moved to New York City where she was a dancer and high fashion model. Bain studied with Martha Graham, thus cementing her interest in dancing. After attending Lee Strasberg's Actors Studio, she changed careers to acting.
In 1957, she married actor Martin Landau, with whom she would later star on television. The couple have two children, actress Juliet Landau and film producer Susan Bain Landau Finch. Landau and Bain divorced in 1993.
Bain is best known for her role in the television series Mission: Impossible in the role of "Cinnamon Carter" (1966 - 1969), a role she later reprised in one episode of Diagnosis: Murder. She won three consecutive Emmies for Best Dramatic Actress. Martin Landau also starred in the series. Later, she starred opposite Landau again in the science fiction television series, Space: 1999 (1975 - 1977), as Dr. Helena Russell.
Bain appeared in the tenth episode of the TV series My So-Called Life, playing Claire Danes' grandmother.
Since then, Bain has worked to further the cause of many charities, including literacy.