Guest Stars Joanna Bobin as Lady Cowper Kathryn Drysdale as Genevieve Delacroix Hugh Sachs as Brimsley Geraldine Alexander as Mrs. Wilson Bert Seymour as Lord Fife Melissa Advani as Lady Eaton Caleb Obediah as Lord Cho Gabrielle Oke as Miss Cordelia Patridge Emily Barber as Tessa Thomas Flynn as Rupert Norton James Matthews as Danbury Footman Esme Coy as Miss Goring Ian Keir Attard as Nelson Sarah Junillon as Eloise's Maid Grace Stotesbury as Kate's Maid Sam Meakin as Musician Karlina Grace-Paseda as Lady Patridge Theresa Godly as Lady Hood