She’s started in some of the UK’s biggest shows including The Royle Family, Walking The Dead and most recently Coronation Street.
But now the actress has announced that she will be playing Denker, Lady’s Maid to Violet, Dowager Countess of Grantham in the hit drama Downton Abbey.
Sue will star in the firth series of the show that is set to return later this year.
Johnston will follow the footsteps of Richard E. Grant, Anna Chancellor and Rade Sherbedgia.
Sue would be really good on the show and we can’t wait to see her on it.