Guest Stars Joanna Bobin as Lady Cowper Jessica Madsen as Cressida Cowper Hugh Sachs as Brimsley Geraldine Alexander as Mrs. Wilson Joanne Henry as Judgy Mama Emma Naomi as Alice Mondrich Molly McGlynn as Maid Rose Lorn MacDonald as Albion Finch Jason Barnett as Jeffries Julian Ovenden as Sir Henry Granville Simon Ludders as Humboldt Freddie Stroma as Prince Friedrich Naomi Preston-Low as Handsome Young Lady Joseph Macnab as Featherington Footman Amy Beth Hayes as Lady Trowbridge Michael Culkin as Lord Rutledge Helene Maksoud as Townhouse Artist #2 Duncan Clyde as Courtier #3 Stuart Organ as Doctor Dempsey Bovell as Townhouse Artist #1 Brig Bennett as Courtier #2 Luke Pierre as Liveried Footman