Sarah Barlow (also Platt, Tilsley and Grimshaw) is a fictional character from the British ITV soap opera Coronation Street. She was born on-screen during the episode broadcast on 2 February 1987. She was played by Leah King in 1987 and by Lynsay King from 1987 until 8 October 1999 when King opted to leave to focus on her education. Tina O'Brien took over the role on 31 October 1999; she opted to leave in 2007 and made her final on-screen appearance on 30 December 2007. A number of false rumours about O'Brien returning to the role surfaced during her absence from the serial. In October 2014, it was announced that O'Brien would reprise the role, she returned on screen on 30 March 2015. Sarah is the daughter of Gail (Helen Worth) and Brian Tilsley (Christopher Quinten), sister to Nick Tilsley (Warren Jackson, Adam Rickitt, Ben Price), half-sister to David Platt (Thomas Ormson, Jack P. Shepherd), granddaughter to Audrey Roberts (Sue Nicholls), Ted Page (Michael Byrne) and Bert (Peter Dudley) and Ivy Tilsley (Lynne Perrie) and mother to Bethany (Mia Cookson, Amy & Emily Walton, Lucy Fallon), Billy and Harry.