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 Nell Tiger Free as Bunty Glossop Lucy Boynton as Petra Briers Simon Kunz as DI Bart Church Ian Peck as Ossie Lloyd Thomas Arnold as Cendree Wyvern Lynn Farleigh as Tabby Gardiner Desmond Barrit as Stephen Fitzowen Eleanor Northcott as Maud Ashenden Imogen Gurney as Edwina Parrish Susy Kane as Miss Victoria Danby Maya Gerber as Stephanie Hackett Michael J. Shannon as Nahum Gardiner Kate Lamb as Daisy Weiss Diane Fletcher as Miss Bronwen Symes Emily Warren as Shelly Thengardi Struan Rodger as Wilf Karswell Eve Perry as Antonia Lockwood Tom Prior as Billy Karswell Uncredited Colin Dexter as Visitor at Museum
