“Putting a Mirror up to Society”: Why Stephen Graham’s Chilling Drama The Walk-In Is Hailed as “Necessary” True-Crime Television
Actor Stephen Graham is celebrated for inhabiting emotionally heavy, uncompromising roles, but few projects carry the chilling contemporary resonance of his five-part miniseries The Walk-In.
First broadcast by ITV in 2022 and currently available to stream on ITVX, the true-crime drama explores the insidious realities of domestic terrorism, far-right radicalization, and an undercover intelligence operation that thwarted the planned assassination of a British Member of Parliament.
The Real-Life Threat: Infiltrating National Action
Grounded in events that unfolded between 2017 and 2018, the narrative centers on Matthew Collins (played by Graham), an activist with the anti-fascist research and advocacy organisation Hope Not Hate. Having broken away from the violent neo-Nazi movement of his youth, Collins dedicates his adult life to dismantling extremist networks from within:
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The Informant: The operation ignites when Robbie Mullen (Andrew Ellis), a disillusioned young insider within the neo-Nazi terror group National Action, secretly reaches out to Collins with actionable intelligence.
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An Underground Threat: Despite National Action becoming the first far-right group banned in the UK following the 2016 murder of Labour MP Jo Cox, cells continued organizing covertly across the country.
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The Target: The central crisis emerges when extremist Jack Renshaw (Dean-Charles Chapman) outlines an active plot to murder West Lancashire Labour MP Rosie Cooper alongside a female police detective.
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The Outcome: Operating at immense personal risk, Collins and Hope Not Hate shepherd Mullen as an undercover mole, providing crucial evidence to counter-terrorism police. The resulting trial dismantled the cell, leading to Renshaw receiving a life sentence.
“Close to My Heart”: Stephen Graham on Confronting Uncomfortable Truths
Reflecting on the production during an appearance on The Graham Norton Show, Graham emphasized that the drama demanded a heightened level of creative responsibility because of its modern social relevance:
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A Mirror to the World: Graham noted that the series refuses to sensationalize its material:“It’s very close to my heart – it’s a very poignant and powerful drama that’s really relevant to what is happening today.”
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Facing Social Reality: The actor explained that his decision to take the lead role was motivated by a desire to be part of art that “puts a mirror up to society,” confronting the subtle ways extremist propaganda targets vulnerable youth.
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Critical Reception: While admitting initial anxiety about how viewers would process the uncomfortable material, Graham noted that the response was overwhelmingly positive, with audiences recognizing the urgency behind the story.
The Ensemble Cast
The production brings together an accomplished ensemble of British screen talent to recreate the high-stakes investigation:
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Stephen Graham as Matthew Collins (Boiling Point, Adolescence)
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Andrew Ellis as informant Robbie Mullen (This Is England)
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Dean-Charles Chapman as Jack Renshaw (1917, Game of Thrones)
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Leanne Best as Alison Collins (Line of Duty, Ripper Street)
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Jason Flemyng as Hope Not Hate CEO Nick Lowles (Pennyworth, Lock, Stock and Two Smoking Barrels)
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Chris Coghill as cell leader Chris Lythgoe (Shameless)
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Bobby Schofield as Matt Hankinson (SAS: Rogue Heroes)
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Dean Lennox Kelly and Nicola Stephenson as Renshaw’s parents
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Steven Miller and David Hayman as Young and Older Lenny
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Remy Beasley as DC Victoria Henderson
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Brendan O’Carroll as Uncle Ronnie
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Andrew Havill as Mr. Atkinson
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Bryony Corrigan as Jo Cox
Why The Walk-In Stands Apart
Unlike standard crime procedurals driven by forensic puzzles or stylized fiction, The Walk-In draws its tension from real human stakes and the chilling logistics of radicalization. By prioritizing procedural authenticity and emotional honesty over melodrama, the five-episode series remains an essential, gut-wrenching study of the courage required to confront political violence from within.
