Foster began her professional career as a child model when she was three years old, and made her acting debut in 1968 in the television sitcom In the late 1960s and early 1970s, she worked in several television series and made her film debut with 's 1972.
The main role was played by previously unknown actor , and Foster co-starred as his working-class single mother.
Foster's last film of the 1990s was the period drama 1999 , in which she starred opposite.