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EastEnders and Game of Thrones favourites join starry cast of new Agatha Christie disappearance drama

Alfie Allen and Ben Hardy have joined the cast of Eleven Missing Days.

Agatha Christie sat at a desk with books, looking up and smiling.

Hulton Archive/Getty Images

Published: Tuesday, 9 June 2026 at 10:31 am

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New drama film Eleven Missing Days will star Vincent Cassel and Felicity Jones, and tell the story of Agatha Christie's real-life disappearance. Now, more names have been added to the cast.

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Among those joining the film are Say Nothing's Ryan McParland, Game of Thrones's Alfie Allen, EastEnders's Ben Hardy, The Brutalist's Stacy Martin, He’s Watching You's Nicole Elizabeth Berger and The Gorge's Oliver Trevena.

The new cast members were revealed by Deadline, with the publication reporting that filming is due to get underway later this week in the UK.

The synopsis for the film says: "In December 1926, at the height of her fame, Agatha Christie became front-page news when she vanished in bizarre circumstances from her home.

"In a case of life imitating art, this whodunnit explores the investigation behind her disappearance, strangely resembling an Agatha Christie novel itself where everyone in her life became a suspect."

Images of Ben Hardy and Alfie Allen at different events, put next to each other.

Ben Hardy and Alfie Allen. Jeff Spicer/Getty Images, Jesse Grant/Getty Images for The Art of Elysium

Jones will be playing the iconic crime author Christie herself, while Cassel will be playing a retired Belgian police detective, à la Hercule Poirot, who is drawn into investigating Christie's disappearance.

The circumstances surrounding Christie's disappearance for a matter of days have never been fully uncovered. Some have suggested it was due to memory loss as a result of a car crash, while others have suggested she entered a "fugue" state brought on by trauma.

The film comes from director Bertie Ellwood (Silo) and writer Ernesto Foronda (Better Luck Tomorrow), and is based on the book Agatha Christie and the Eleven Missing Days by Jared Cade.

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This news comes as the BBC just announced its new TV series take on Christie's Poirot stories, with Edward Bluemel set to play a younger version of the detective in Hercule.

Meanwhile, another Christie adaptation, Netflix's Agatha Christie's Seven Dials, was released earlier this year (also starring Bluemel) and there are plenty of other screen versions of her works on the way.

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Authors

Black and white cut-out portrait headshot of James Hibbs, smiling against a lime green background.

James HibbsDrama Writer

James Hibbs is a Drama Writer for Radio Times, covering programmes across both streaming platforms and linear channels. He previously worked in PR, first for a B2B agency and subsequently for international TV production company Fremantle. He possesses a BA in English and Theatre Studies and an NCTJ Level 5 Diploma in Journalism.

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