Lia Williams

as Katherine Davies

as Mrs. Smith

as Lucy

as Maida

as Fran Unsworth

as Prime Minister

as Constance

as Edith Sitwell

as House (voice)

as Joan Tyler

as Self

as Amanda

as Maggie Markham

as Grace Verdinikov

as Emily Gutwell

as Isabel Kirby

as Lady Ashfordly

as Wallis Simpson / Wallis, Duchess of Windsor

as DCI Carol Deacon

as Carrie Langman

as Lucy

as Carol Brown

as Dr Cooper