凯瑟琳·沃克,Catherine Walker is an Irish actress, notable for British and Irish television appearances including The Clinic, Northanger Abbey, Bitter Sweet, Critical and A Dark Song. More recently, she appeared as Madame Scarron/Madame de Maintenon in series 2 of the TV series Versailles. She also appeared as Alice Brooks in Series 4 of the BBC drama Shetland.