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