Who is she on Mistresses? Katie, a former doctor whose life and career have crumbled before her. But she must brace herself for one more blow: the appearance of her mother Vivienne (Joanna Lumley).
Where else on American TV might you have seen her? Parish played a hideous, farting troll masquerading as a beautiful lady in episodes of Merlin and the disfigured, ambitious Regan Hamleigh on the Starz miniseries The Pillars of the Earth.