Samuel Beckett referred to her as 'The perfect actress'.
Became an Associate Member of RADA.
Billie is a member of The Society of Friends
Commutes between her apartment in London-Hampstead and her cottage in Suffolk.
Graduated from RADA.
Has two stepdaughters (both her husband Robert's children by his first marriage): Clare (born 1962) and Sophie (born 1964)
Her second husband was the playwright, drama critic and occasional screenwriter Robert Muller (now deceased). They had one son, Matthew Muller.
Her son's apartment was used as a location in Shaun of the Dead (2004). As he'd probably seen the film and enjoyed it, he encouraged his mom to be a part of Hot Fuzz (2007) by Pegg/Wright.
Member of the jury at the Berlin International Film Festival in 1970
Met her husband Robert Muller at a party given by Bob Monkhouse. She said it had been a very calm, very quiet understanding of the fact that this was the man who would be the father of her child. And she added she hadn't doubted it for a second.
She was awarded the CBE (Commander of the British Empire) in 1991.
When her son Matthew (born 1968) was five years old, he developed an appalling form of meningitis. The doctors gave him three days to live, but miraculously he pulled through. However, it took about two years for him to get entirely well again.