Lesley Manville & Tim McMullan Lead in MASTERPIECE’s Final Installment in the Susan Ryeland Mystery Series
MASTERPIECE PBS has announced that Marble Hall Murders, the final Susan Ryeland mystery adaptation from best-selling author Anthony Horowitz will premiere on Sunday, September 6, 2026 at 9/8c.
Joining the previously confirmed leads of Lesley Manville (Phantom Thread, The Crown) as Susan Ryeland and Tim McMullan (The Crown, Patrick Melrose, The Serpent) as Atticus Pünd are Jamie Blackley (Outrageous, The Last Kingdom), Mark Bonnar (Ludwig, Guilt, Dept. Q), Daniel Cerqueira (This City is Ours, A Gentleman in Moscow), Patricia Hodge (All Creatures Great and Small, A Very English Scandal), Harry Lloyd (Game of Thrones, I Jack Wright), Rupert Penry-Jones (Whitechapel, Spooks), Anneika Rose (Crossfire, Line of Duty), Danny Sapani (Killing Eve, Harlots, Halo) and Zubin Varla (Andor, A Little Life). Many of the cast enjoy playing double roles in the contemporary world and then as a fictional version of their characters in the 1955 Golden Age book story.
In Marble Hall Murders Editor Susan Ryeland is hired to work on a continuation novel of the Atticus Pünd series, written by a troubled young author (Blackley). When the job leads Susan into another murder case, she unexpectedly finds herself a suspect. In the world of the novel, Atticus Pünd is visiting the island of Corfu when he becomes embroiled in the murder of Lady Margaret Chalfont (Hodge), whose family he investigates with the assistance of a Greek detective (Varla).
The Susan Ryeland mysteries have been hits with both audiences and critics. When Magpie Murders premiered, the Los Angeles Times said it “has everything you want in a British mystery” and when Moonflower Murders debuted, the Wall Street Journal declared it as “first-rate.”
Marble Hall Murders is a co-production of Eleventh Hour Films for MASTERPIECE and the BBC in association with Salt Films, and distributed worldwide by Sony Pictures Television and by PBS Distribution in North America.
