Guest Stars Caroline O'Neill as Win Thursday Abigail Thaw as Dorothea Frazil Sara Vickers as Joan Thursday Shvorne Marks as Monica Hicks Nick Waring as Force Medical Examiner Liam Garrigan as Tony Frisco Jessie Buckley as Kitty Batten Philip Martin Brown as Bernard Yelland Beth Goddard as Barbara Batten Jonathan Coy as Archie Batten Ksenia Lavrentieva as Frida Yelland Pooky Quesnel as Muriel Todd Samuel Oatley as Mallory David Westhead as Val Todd Jessica Ellerby as Diana Day Jamie Parker as Dr. Matthew Copley-Barnes William Mannering as Dr Malcolm Speight Michael Hobbs as Returning Officer Celyn Jones as Jenkins Emily Plumtree as Lydia Martin James Palmer as Justin Delfarge Nigel Cooke as Walter Fisher Uncredited Colin Dexter as Don on Bench outside Beaufort College
