Ben Miller's ITV crime drama Professor T returns for its third season – and this time, we find the eponymous academic behind bars after he tried to defend DCI Christina Brand at the end of season 2.

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"Both their careers are on the line, and both have momentous decisions to make," reads the official synopsis. "Will Christina allow Jasper to incriminate himself to save her career, or will her conscience and the formidable duo of his mother Adelaide and his therapist Dr Helena get the better of her?"

This season will also "reveal what happened the night a young Jasper found his father hanging".

"How involved was his mother Adelaide and what did she really know about her husband's death?" continues the logline. "With the help of his therapist, Jasper finally manages to piece together his memories of the events despite Adelaide and the Dean's attempts to shield him from the devastating truth."

Elsewhere, Lisa Donckers has been promoted, and her relationship with fellow detective Dan Winters "finally gets on track, but a tragic turn of events will blow them apart".

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And they also have a new boss, DCI Maiya Goswami, who isn't afraid to ruffle feathers.

For more information about the main cast and where you've seen the actors before, read on.

Professor T main cast

  • Ben Miller as Professor Tempest
  • Emma Naomi as DS Lisa Donckers
  • Barney White as DS Dan Winters
  • Frances de la Tour as Adelaide Tempest
  • Juliet Aubrey as DCI Christina Brand
  • Juliet Stevenson as Dr Helena Goldberg
  • Andy Gathergood as Paul Rabbit
  • Douglas Reith as The Dean
  • Sarah Woodward as Ingrid Snares
  • Sunetra Sarker as DCI Maiya Goswami

Ben Miller plays Professor T

Ben Miller as Professor T, wearing prison overalls and sat with a blanket and mug on his lap. He is looking at the camera, sat in a prison cell, and wearing latex gloves
Ben Miller plays Professor T. Eagle Eye Drama for ITV and ITVX

Who is Professor T? An enigmatic criminology lecturer (aka Jasper Tempest) who has OCD and is obsessed with surgical gloves and hand-washing. He's drawn into the world of real-life crime solving when a former pupil of his, DI Lisa Donckers, reaches out and takes a chance on him.

Where have I seen Ben Miller before? He recently played Lord Featherington in the Netflix smash-hit period drama, Bridgerton, and briefly reprised his role as DI Richard Poole in Death in Paradise. He's also known for his comedy partnership in The Armstrong and Miller Show, and roles in the likes of I Want My Wife Back, Paddington 2, and Johnny English Strikes Again.

Emma Naomi plays Lisa Donckers

Emma Naomi as Lisa Donckers in Professor T.
Emma Naomi plays Lisa Donckers. ITV

Who is Lisa Donckers? A witty, charming police detective and former pupil of Professor T, who reached out to her old mentor and now works with him on cases.

Where have I seen Emma Naomi before? She recently played Alice Mondrich in Netflix series Bridgerton (alongside co-star Ben Miller) and starred in BBC drama The Trial of Christine Keeler.

Barney White plays Dan Winters

Barney White plays Dan Winters
Barney White plays Dan Winters. ITV

Who is Dan Winters? Lisa's supportive police sidekick, he's the "ying to her yang" and is "just the sort of boy you’d want to bring home to meet your parents, unless, that is, you unfortunately happen to work with him".

Where have I seen Barney White? He's starred in the likes of Holby City, King Gary and Miss Marx.

Frances de la Tour plays Adelaide

Frances de la Tour as Adelaide Tempest in Professor T.
Frances de la Tour as Adelaide Tempest in Professor T. ITV

Who is Adelaide? The professor's scene-stealing, overbearing mother. Jasper Tempest experienced a childhood trauma when he was younger, which is often hinted at during scenes featuring Adelaide.

Where have I seen Frances de la Tour before? The actress is known for roles in the likes of Harry Potter and the Goblet of Fire, The History Boys, and Rising Damp (as Miss Ruth Jones). Other projects have included Into The Woods (as Giant), Vicious, Outlander, and recently in the first Enola Holmes film (as the Dowager).

Juliet Aubrey plays Christina Brand

Juliet Aubrey plays Christina Brand, standing outside, wearing a grey coat
Juliet Aubrey plays Christina Brand. Eagle Eye Drama for ITV AND ITVX

Who is DCI Christina Brand? Head of the local CID, with confusing feelings for her old flame: none other than Professor T himself.

Where have I seen Juliet Aubrey before? The BAFTA-winner has previously appeared in Middlemarch (as Dorothea), The Constant Gardener, Primeval (as Helen Cutter), and as Countess of Warwick in The White Queen.

Juliet Stevenson plays Dr Helena Goldberg

Juliet Stevenson as Dr Helena Goldberg in Professor T.
Juliet Stevenson plays Dr Helena Goldberg. ITV

Who is Dr Helena Goldberg? Helena is Professor T's therapist and more than a match for his intellect.

Where have I seen Juliet Stevenson before? Stevenson has previously appeared in series such as Riviera, The Man Who Fell to Earth and The Village, while her film roles include Bend it Like Beckham, Nicholas Nickleby and 1996's Emma.

Andy Gathergood plays Paul Rabbit

Andy Gathergood plays Paul Rabbit in Professor T, wearing a suit and tie, standing in an office at the police station
Andy Gathergood plays Paul Rabbit in Professor T. Eagle Eye Drama for ITV AND ITVX

Who is Paul Rabbit? Previously a model cop, senior officer Rabbit lost his way following a personal tragedy. He dislikes working with Professor T and distrusts his methods.

Where have I seen Andy Gathergood before? Gathergood has previously appeared in 2010 mini-series Five Daughters, two episodes of 2012's Hatfields & McCoys, as well as instalments of The Last Kingdom, Britannia and The Salisbury Poisonings.

Douglas Reith plays The Dean

Douglas Reith as The Dean in Professor T.
Douglas Reith as The Dean in Professor T. ITV

Who is The Dean? A Cambridge Dean and Adelaide's confidante.

Where have I seen Douglas Reith before? He's probably best known as Isobel Crawley's love interest, Lord Merton, in Downton Abbey. He also starred in the likes of The Queen, The Prince and the Pauper, and Outlander.

Sarah Woodward plays Ingrid Snares

Sarah Woodward as Ingrid Snares in Professor T.
Sarah Woodward as Ingrid Snares in Professor T. ITV

Who is Ingrid Snares? Professor T's acid-tongued personal assistant. Ingrid is a gossip who is "easily taken for an ultra-conservative, but beneath the twin-set and pearls there lurks a true subversive who likes nothing better than knocking back absinthe and ogling body-building magazines".

Where have I seen Sarah Woodward before? She's known for roles in the likes of Poirot, Queens of Mystery, The Pale Horse, Supernova, Quiz, Endeavour, and The Politician's Husband.

Sunetra Sarker plays DCI Maiya Goswami

Sunetra Sarker plays DCI Maiya Goswami, standing at her desk in her office
Sunetra Sarker plays DCI Maiya Goswami in Professor T. Eagle Eye Drama for ITV AND ITVX

Who is DCI Maiya Goswami? Christina Brand's replacement. Her management style is described as "abrasive and direct".

Where have I seen Sunetra Sarker before? She's best known for Casualty and Ackley Bridge.

Additional cast includes:

  • Ben Onwukwe (Safe) as Jackson Donckers, Lisa's father, who is a retired police officer.

Professor T season 3 debuts on ITV1 at 9pm on Wednesday 27th March. Check out more of our Drama coverage or visit our TV Guide and Streaming Guide to find out what else is on.

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