Leah King (January 1987 - May 1987) was cast on Coronation Street - alongside her twin sister Lynsay - as the newborn Sarah Louise Tilsley in February 1987. The twins shared the role until the end of April of that year, however Leah tragically died from cot death during the following month. The children's parents decided that Lynsay could continue as Sarah Louise, and did so until October 1999, before the role was recast and Tina O'Brien took over from November that year.