Shaun Evans (Until I Kill You, Endeavour), Romola Garai (The Years, The Hour), Zahra Ahmadi (Beyond Paradise, The Bay) and Nikki Amuka-Bird (I, Jack Wright, Avenue 5) star in Betrayal, a gripping four-part thriller about trust, truth, and the personal cost of secrecy in the modern intelligence world.
Written by award-winning playwright and screenwriter David Eldridge and directed by BAFTA and Emmy nominee Julian Jarrold, the series is set against the backdrop of MI5, and explores the fragile, tangled web of human relationships, where loyalty and deception collide.
At the heart of the story is John Hughes (Shaun Evans), a mid-career MI5 officer navigating a rapidly evolving intelligence landscape while struggling to keep his personal life intact. On a hunch John meets a British Iranian man with links to the Stockport gangland who claims he has intelligence about a plot on UK soil. Before he can share intel, the informant is executed, and John kills the assassin in self-defence. John soon finds himself under internal investigation, facing scrutiny from his superiors, including Simone Grant (Nikki Amuka-Bird), while his partner Claire (Romola Garai) grapples with the secrecy that defines his world.
John’s efforts to save his marriage are complicated by his inability to let the case go. And when he meets Mehreen Askari-Evans (Zahra Ahmadi), an intelligence operative who is tasked with taking over John’s duties, he finds an unlikely ally. As John becomes increasingly convinced of the involvement of a hardline faction of the Iranian regime, he also starts to worry there are enemies closer to home. But can he identify the target and avert the attack before it’s too late?
Produced by Irma Inniss (Mr Loverman, The Bay), Betrayal stars Gamba Cole (The Outlaws, Three Little Birds), Omid Djalili (The Letter for the King, His Dark Materials), Matthew Tennyson (A Midsummer Night’s Dream, Grantchester), Hayley Tamaddon (Unforgotten, Coronation Street), Anthony Flanagan (Protection, House of the Dragon), Paddy Rowan (G’wed, Four Lives), Waj Ali (Out There, Dead & Buried), Karim Kadjar (The Deal, Wolf Hall), Emma Cunniffe (Suspect: The Shooting of Jean Charles de Menezes, The Long Shadow), Georgina Rylance (Benediction, Sherlock), Ben Lambert (Outlander, The Crown), Julia Watson (Doctor Who, Doctors), Julian Wadham (Black Doves, The Crown) and Raphael Zari (The Hunger Games: Ballad of the Songbirds and Snakes, Mai on Retainer), alongside newcomers Elham Karimpour, Aidan Rivers, Corin Silva, and Eliza Agrosoaie.
The series is produced by Mammoth Screen, the ITV Studios label behind the acclaimed Code of Silence, in association with Navarino Pictures. Executive producers are David Eldridge, Shaun Evans, Julian Jarrold, Tom Leggett and Damien Timmer, with development led by Mammoth’s Creative Director Rebecca Keane. The production is overseen by ITV’s Polly Hill, Director of Drama, and Drama Commissioner Huw Kennair Jones.
Betrayal is produced in association with and distributed by ITV Studios.
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