She wrote her memoir "Susan's Story" about dealing with her dyslexia. Prominent spokeswoman for dyslexia causes in Britain.
She was awarded the OBE (Officer of the Order of the British Empire) in the 1995 Queen's Honours List for her services to dyslexia causes and drama.
Wearing an extremely low-cut dress, she was presented to the Prince of Wales at a show-business function in 1973. The Prince told her, "My father told me that if I ever met a lady in a dress like yours, I must look her straight in the eyes."
Her daughter, Victoria Granier-Deferre, died in infancy.
She had numerous miscarriages during the early 1970s, following the birth of her son Christopher.