Natalie Dormer

as Mrs Hester Appleyard

Lola Bessis

as Mademoiselle Dianne de Poitiers

Lily Sullivan

as Miranda Reid

James Hoare

as Albert Crundall

Madeleine Madden

as Marion Quade

Samara Weaving

as Irma Leopold

Yael Stone

as Miss Dora Lumley

Harrison Gilbertson

as The Hon. Michael Fitzhubert

Inez Currõ

as Sara Waybourne

Ruby Rees Wemyss

as Edith Horton