Williams left Blue Peter at the start of 1962, after being made redundant by a newly-appointed producer with whom she did not get on and who had left her out of many editions of the show from the end of 1961. She went on to appear in such films as Watch Your Stern, Marriage of Convenience and The Beauty Jungle.
Williams married Fred Mudd, the lead singer of the popular music group The Mudlarks and whilst they were touring in the early 1970s she worked as an assistant manager at a Dorothy Perkins clothing store in Harrow, London and in the early to mid 1960s had their only child Debra. The couple then ran pubs in Kingston-upon-Thames and Surbiton for many years. Today she lives in Spain.