Guest Stars Amy Beth Hayes as Miss Kitty Hawkins Poppy Lee Friar as Rosalie Selfridge Lauren Crace as Doris Deborah Cornelius as Miss Blenkinsop Pippa Haywood as Miss Bunting Anna Madeley as Miss Ravillous John Sessions as Sir Arthur Conan Doyle Sevan Stephan as Mr Fitch Todd Boyce as Mr Crenell Guy Williams as Sir Oliver