Guest Stars Caroline O'Neill as Win Thursday Abigail Thaw as Dorothea Frazil Sara Vickers as Joan Thursday Jack Bannon as Sam Thursday Shvorne Marks as Monica Hicks Anya Taylor-Joy as Philippa Collins-Davidson Daniel Ings as Terence Black Simon Kunz as DI Bart Church Ian Peck as Ossie Lloyd Struan Rodger as Wilf Karswell Desmond Barrit as Stephen Fitzowen Nell Tiger Free as Bunty Glossop Lucy Boynton as Petra Briers Michael J. Shannon as Nahum Gardiner Lynn Farleigh as Tabby Gardiner Susy Kane as Miss Victoria Danby Imogen Gurney as Edwina Parrish Thomas Arnold as Cendree Wyvern Maya Gerber as Stephanie Hackett Diane Fletcher as Miss Bronwen Symes Eleanor Northcott as Maud Ashenden Emily Warren as Shelly Thengardi Kate Lamb as Daisy Weiss Eve Perry as Antonia Lockwood Tom Prior as Billy Karswell Uncredited Colin Dexter as Visitor at Museum
