Frances Hargreaves (6 January 1955 – 3 March 2017) was an Australian actress, who became famous in the 1970s through her long-running role of wayward teenager Marilyn McDonald, the adopted daughter of Edie and Reg (Mike Dorsey and Wendy Blacklock), whom she always called "Mummy and Daddy" in soap opera Number 96.
She was primarily a comedy character, but her most dramatic storyline was when she discovered the identity of the infamous "Number 96", "Pantyhose Strangler"