Sally's first screen appearance was in Seventy Deadly Pills in 1964. She played a character called Gerty.
She then appeared in a number of films and TV shows including Nearest and Dearest, Dixon Of Dock Green and Z Cars.
In 1970 she starred in the film The Railway Children. She played the part of Phyllis, an 11-year-old girl, when she was actually aged 20.
She was also in the controversial 1971 film Straw Dogs with Dustin Hoffman and Susan George, which was banned in the UK under the 1984 Video Recordings Act.
She is best known for her role as Jo in Man About The House.
Sally is married to her third husband Paul Agnew and has a daughter Charlotte.