John Nettles DCI Tom Barnaby Actor Daniel Casey Sergeant Gavin Troy Actor Jane Wymark Joyce Barnaby Actor Laura Howard Cully Barnaby Actor Timothy West Marcus Devere Actor Hannah Gordon Bella Devere Actor Richard Hope Gordon Brierly Actor Marsha Fitzalan Laura Brierly Actor Maggie Steed Rosemary Furman Actor Nickolas Grace Frank Mannion Actor Josephine Tewson Samantha Johnstone Actor Barbara Jefford Barbara Drinkwater Actor Moray Watson Edward Allardice Actor Shelagh Fraser Jane Rochelle Actor Orlando Bloom Peter Drinkwater Actor Chloe Tucker Caroline Devere Actor Bill Thomas Ray Dorset Actor Tobias Menzies Jack Dorset Actor Toby Jones Dan Peterson Actor Caroline Faber Ruth Weston Actor Richard Trinder Michael Weston Actor Marlene Sidaway Mrs. Foster Actor Robert Goodale Dr. Sellers Actor Malcolm Rennie Alderman Actor Jeremy Silberston Director Anthony Horowitz Writer Brian True-May Executive Producer