Elizabeth Mary Driver, was a British actress and singer, best known for her role as Betty Williams in the long-running ITV soap opera, Coronation Street, a role she played for 42 years from 1969 to 2011, appearing in 2732 episodes. She had previously appeared as Mrs Edgley in Coronation Street spin-off Pardon the Expression (1965–1966) opposite Arthur Lowe. In her early career she was a singer, appearing in musical films such as Boots! Boots! (1934), opposite George Formby, and in Penny Paradise (1938), directed by Carol Reed. She was made an MBE in the 2000 New Year Honours.

Betty Williams is a fictional character from the ITV soap opera Coronation Street, portrayed by former music hall star Betty Driver. Driver was cast as Betty in 1969, after first auditioning for the role of Hilda Ogden, which was given to Jean Alexander. The character arrived in Coronation Street to help her sister Maggie Cooke run the corner shop, and since then had a number of storylines which saw her become twice widowed, and mother to an illegitimate son.