ITV has unveiled a first official look at new MI5 thriller Betrayal. Starring Vigil's Shaun Evans, the series follows an agent who finds himself under investigation after a man he connects with is killed.
A first set of stills from the show have now been released, showing Evans in character alongside co-stars including Romola Garai, and comes after first-look filming pictures emerged earlier this year.
Betrayal, which follows "the fragile, tangled web of human relationships, where loyalty and deception collide", centres on Evans's character John Hughes, "a mid-career MI5 officer navigating a rapidly evolving intelligence landscape while struggling to keep his personal life intact".
After getting a hunch, he connects with a British-Iranian man linked to the Stockport gangland who claims he has intelligence regarding a planned plot on the UK – though before he can learn anything, the man is killed by a gunman, who John in turn kills.
John then "finds himself under internal investigation, facing scrutiny from his superiors" including Simone Grant (Nikki Amuka-Bird), all while his partner Claire (Garai) "grapples with the secrecy that defines his world".
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"John’s efforts to save his marriage are complicated by his inability to let the case go," the synopsis adds. "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?"
Starring alongside Evans, Garai, Amuka-Bird and Ahmadi are The Outlaws' Gamba Cole, His Dark Materials' Omid Djalili, Grantchester's Matthew Tennyson, Unforgotten's Hayley Tamaddon, House of the Dragon's Anthony Flanagan, G’wed's Paddy Rowan and Out There's Waj Ali.
Wolf Hall's Karim Kadjar, The Long Shadow's Emma Cunniffe, Sherlock's Georgina Rylance, Outlander's Ben Lambert, Doctor Who's Julia Watson and Black Doves' Julian Wadham are also on board.
Betrayal comes from The Scandalous Lady W's David Eldridge and is directed by A Very Royal Scandal's Julian Jarrold.
Betrayal will air on ITV1 and ITVX in 2026.
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Sam is a freelance reporter and sub-editor who has a particular interest in movies, TV and music. After completing a journalism Masters at City University, London, Sam joined Digital Spy as a reporter, and has also freelanced for publications such as NME and Screen International. Sam, who also has a degree in Film, can wax lyrical about everything from Lord of the Rings to Love Is Blind, and is equally in his element crossing every 't' and dotting every 'i' as a sub-editor.
