The beloved British detective drama Grantchester is returning for its landmark tenth season, bringing more mysteries, heartfelt moments, and character-driven storytelling. Set in the picturesque village of Grantchester in the early 1960s, the series continues to captivate audiences with its blend of crime-solving, period drama, and emotional depth. Here’s everything we know so far about Grantchester Season 10, including release dates, cast, plot details, and how to watch.
Release Date and Schedule
Grantchester Season 10 is set to premiere in the United States on Sunday, June 15, 2025, at 9/8c on PBS’s MASTERPIECE Mystery!. The season will consist of eight episodes, airing weekly on Sunday nights through August 3, 2025. For viewers in the UK, an exact release date has not been confirmed, but based on previous seasons, it’s expected to air on ITV1 and ITVX in early January 2026. Filming for the season began in July 2024 in Cambridge and surrounding areas, ensuring the show’s signature scenic backdrop.
For those with a PBS Passport membership, all eight episodes will be available to binge starting on the premiere date, June 15, 2025, at 9/8c. Episodes will also stream online for 14 days after each broadcast on PBS.org and the PBS App.
Cast: Who’s Returning and Who’s New?
The core cast of Grantchester Season 10 features familiar faces, with some exciting developments for beloved characters:
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Robson Green as Detective Inspector Geordie Keating: The no-nonsense detective continues to lead investigations while grappling with personal challenges, particularly around fatherhood.
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Rishi Nair as Reverend Alphy Kottaram: Now settled as the vicar, Alphy’s second season will explore his past and the secrets he’s been hiding, adding depth to his character.
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Tessa Peake-Jones as Mrs. Chapman: A pillar of the Grantchester community, Mrs. C teams up with Cathy for a new business venture.
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Kacey Ainsworth as Cathy Keating: Geordie’s wife embarks on an entrepreneurial journey with Mrs. C, bringing fresh dynamics to her role.
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Al Weaver as Leonard Finch: Leonard faces a challenging season, with his struggles with faith and identity leading to a dramatic moment in prison.
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Nick Brimble as Jack Chapman: Mrs. C’s husband remains a key community figure.
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Bradley Hall as DC Larry Peters and Melissa Johns as Miss Scott: Their blossoming workplace romance continues to evolve, impacting the police department.
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Oliver Dimsdale as Daniel Marlowe: Leonard’s partner, who will be affected by Leonard’s personal struggles.
Plot: What to Expect in Season 10
Set in 1962, Grantchester Season 10 dives into a rapidly changing world, with themes of identity, family, and personal values at the forefront. DI Geordie Keating and Reverend Alphy Kottaram continue their crime-solving partnership, tackling mysteries ranging from a suspicious death during Easter celebrations to murders on church grounds, at a university, in a foundling home, and even within the police station itself.
The season delves deeper into Alphy’s character, as he feels at home in Grantchester but is forced to confront long-held secrets. Will he open up to those around him, or will these truths create new barriers? Geordie, meanwhile, navigates personal challenges as a father, while his wife Cathy and Mrs. Chapman embark on a business venture that introduces new dynamics. Leonard Finch faces a dark moment with his struggles, impacting his relationship with Daniel. The blossoming romance between Larry and Miss Scott adds a lighter touch, while the show continues to explore the shifting moral landscape of the early ‘60s.
