Nia has just finished playing Martha Washington in Washington for the History Channel. Other recent television credits include The Crown (Netflix), Hidden (BBC 4), Bang (SC4), Keeping Faith (BBC), Rillington Place (BBC), The White Princess (Starz). Her film credits include Feast, Last Summer, Just Jim, Patagonia, Third Star and Snowcake. Nia also has many theatre and radio credits and is about to appear in Hedda Gabler at the Sherman Theatre in Cardiff.