Ben Miller returns as Jasper Tempest, the brilliant but deeply eccentric Cambridge criminology professor, for a fifth season of six new mysteries. Season 5 finds Jasper testing a new, fragile relationship with his therapist-turned-partner Dr. Helena Goldberg (Juliet Stevenson) just as a string of suspicious deaths pulls him back into his old obsessive habits. Professor T streams on PBS Masterpiece in the US, alongside plenty more covered in British TV Hub's guide to British TV streaming services.
About the show
Professor T is a British remake of the Belgian series created by Malin-Sarah Gozin (who also wrote the Irish drama that inspired Bad Sisters), moving the story from Antwerp to Cambridge. Ben Miller, previously the tropical-shirted detective of Death in Paradise, stars as the OCD-affected criminologist Professor Jasper Tempest, opposite Frances de la Tour as his colourful, overbearing mother, Adelaide. The format has also been remade for German, French, and Czech television, making the British Professor T just one entry in a run of international adaptations. Season 5 was written by Stephen Brady, who took over scripting duties from original writer Matt Baker in Season 3.
Where to watch Season 5 in the US
PBS Masterpiece
Season 5's broadcast premiere is Sunday, October 18, airing weekly through November 22 — all six episodes have already been available to PBS Passport members since August 9. Via PBS, PBS Passport or the PBS Masterpiece channel on Prime Video · Subscription required · Check current episode selection
Watch on PBS Masterpiece →Streaming availability in the US can change. Check the linked service for the current season and episode selection. Checked October 2026.
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New Viewer's Guide
New to the Series? Start with Season 1
Professor T builds Jasper's backstory, his relationship with his mother Adelaide, and his slow return to police work across its earlier seasons, so Season 1 is the natural starting point. Jumping straight into Season 5 is workable too — the recurring team and Jasper's quirks are reintroduced quickly enough for a new viewer to follow.
Season 5 Episode Guide
All six episodes, in airing order. Kept spoiler-light.
Natural Causes
Jasper and Helena test their new relationship at a luxury hotel and spa, weeks after getting together. Two deaths officially ruled "natural" make Jasper suspicious, and his growing obsession puts their fragile bond at risk. Meanwhile, Dan feels drawn to the enigmatic Leonie.
The Ring
A charity boxing match ends in murder, Adelaide's condition worsens, and Dan's new romance draws Chloe into the danger.
Retreat
A death at a secluded retreat exposes deceit and desire, and deepens a mystery that's increasingly personal for Jasper.
Ghostwriter
Jasper pursues the killer of his own mentor, putting his safety on the line to uncover the truth.
Cipher
Murders and coded messages raise fears of a serial killer, as divided loyalties complicate the investigation.
The Things We Do for Love
Dan exposes Chester, provoking a thirst for revenge, while a murder at a Cambridge comic convention tests the whole team.
Main Characters and Cast
DS Dan Winters, Professor T, Lady Cynthia and DC Chloe Highsmith in an official photo for Season 5.
Ben Miller
Professor Jasper Tempest — a brilliant Cambridge criminologist whose OCD, fear of germs, and discomfort with other people make his crime-solving methods as unconventional as the man himself.
Juliet Stevenson
Dr. Helena Goldberg — formerly Jasper's therapist, now his romantic partner, as the two navigate a relationship that his obsessive instincts keep threatening to derail.
Sunetra Sarker
DCI Maiya Goswami — leads the police team alongside Dan, keeping the investigations grounded while Jasper's instincts pull everyone in unexpected directions.
Barney White
DS Dan Winters — still working through grief from an earlier season, and this year finds himself drawn to a new, enigmatic connection.
Rhian Blundell
DC Chloe Highsmith — the team's newer hire, growing more confident this season even as she's pulled into the fallout of a colleague's personal life.
Frances de la Tour
Adelaide Tempest — Jasper's colourful, overbearing mother, whose presence (and, this season, declining health) continues to shape his personal life as much as his cases do.
Zoë Wanamaker
Zelda Radclyffe — Jasper's aunt, part of the Season 5 cast confirmed by ITV alongside Ben Miller, Frances de la Tour, and Juliet Stevenson.
What Makes the Series Special
An Unconventional Detective
Ben Miller's Jasper Tempest is defined as much by his OCD and social awkwardness as by his criminological brilliance, giving the series a central figure who's genuinely unlike most TV detectives.
Jasper's Evolving Personal Life
Rather than keeping its detective static, the series lets Jasper's relationships with his mother and, now, Helena genuinely develop season to season, raising the personal stakes alongside the cases.
One of Several Adaptations
Professor T began as a Belgian series and has since been remade for British, German, French, and Czech television, making this version one entry in a wider international franchise built around the same character concept.
Setting and Filming Locations
Cambridge, England
The British version relocates the story from the Belgian original's Antwerp to Cambridge, and production has filmed on location in both Cambridge and Belgium, where the original series this adaptation is based on was made.
Watch the Trailer
More Trailers on British TV Hub — Trailers & Previews →
Frequently Asked Questions
When does Professor T Season 5 premiere?
Season 5's broadcast premiere on PBS stations is Sunday, October 18, 2026, with new episodes airing weekly through November 22. All six episodes have already been available to PBS Passport members since August 9, 2026.
How many episodes are in Professor T Season 5?
Season 5 consists of six episodes: Natural Causes, The Ring, Retreat, Ghostwriter, Cipher, and The Things We Do for Love.
Where can I watch Professor T Season 5 in the US?
Professor T streams on PBS Masterpiece — via participating PBS stations, PBS Passport, or the PBS Masterpiece channel on Prime Video. A Passport membership or the Masterpiece channel subscription is required for early or on-demand access.
Do I need to watch Professor T from Season 1 to follow Season 5?
No. Season 5 reintroduces Jasper's quirks and the team quickly enough for a new viewer to follow, though watching from Season 1 adds more context for his relationships with Adelaide and the rest of the team.
Where is Professor T filmed?
The British version is set in Cambridge, England, and filming has taken place on location in both Cambridge and Belgium, where the original series this adaptation is based on was produced.
Is Professor T based on a book?
No. Professor T is a remake of a Belgian television series created by Malin-Sarah Gozin, not a book adaptation. It tells original screen stories rather than adapting existing novels.
Fact-checked and streaming availability checked October 2026. Spot an error or an outdated streaming link? Send a correction via the contact page.
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