Jill Bennett (December 24, 1931 - October 4, 1990) was a British actress best known as the fourth wife of playwright John Osborne. She was born in Penang to British parents, and trained at RADA. She made her film début in Moulin Rouge (1952) and her stage début at around the same time. Bennett made many appearances in British films during the 1950s and 1960s, notably The Nanny (1965) (opposite Bette Davis) and as Calpurnia to John Gielgud's Caesar in a 1970 version of Julius Caesar. She also had small roles in Britannia Hospital (1981), For Your Eyes Only (1981), Lady Jane (1986) and her final film performance in The Sheltering Sky (1990).
She made forays into television, most notably as the colourful Lady Grace Fanner in the 1985 adaptation of the John Mortimer novel Paradise Postponed .
She was married to screenwriter Willis Hall and later to Osborne (who had been married three times before). Their divorce in 1990 resulted in vitriolic public exchanges. Bennett committed suicide later that year.
