Kathy Barnes is a fictional character from the British Channel 4 soap opera Hollyoaks, played by Sarah Jane Buckley. Kathy arrived in November 2005. In October 2007, it was announced that Kathy had been written out of the serial and would leave in January 2008. She returned briefly on 24 April 2017 for the funeral of her daughter Amy Barnes (Ashley Slanina-Davies) and departed the following day on 25 April 2017. Kathy returned on 4 September 2017 for Ste Hay's (Kieron Richardson) week-long trial. After being found not guilty on 8 September 2017, Ste was shot by Kathy, following which Kathy is taken into police custody and makes a permanent exit.