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