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Monday, April 20, 2026

'The Walk-In' Whistleblower: Who is the Real Robbie Mullen? - Esquire

ITV’s The Walk-In – a five-part series starring Stephen Graham – asks the question: how and why do people get lured into joining violent far-right groups?

The series, written by Jeff Pope, draws on the true-life case of Matthew Collins (Graham), a former member of fascist groups like the National Front and the BNP, who has now reformed and is an activist working for the civil rights group, Hope Not Hate.

In 2017, Collins was contacted by Robbie Mullen (played by Andrew Ellis), a whistleblower from the banned far-right group, National Action, who claimed that one of their members was planning to murder a British MP. The assassination was thwarted, and the perpetrator sentenced to life in prison. The case makes up much of The Walk-In, and this is the true story behind Mullen.

Who is Robbie Mullen?

Mullen grew up in Widnes, and fell into trouble at school. His father died when Mullen was about 16, and according to The New Yorker he became “even more angry and sullen, and began spending much of his time alone, playing video games in darkened rooms.” He had various low paying jobs, and became motivated by the fact that towns and cities like Bradford and Blackburn were being “taken over.”

Mullen increasingly began searching online for far-right sites and in 2015, he attended a white supremacist march in Wigan. There, he met a National Action activist, Christopher Lythgoe, who invited him to join the members at the pub, and later the group. He quickly formed bonds with the other...



Read Full Story: https://www.esquire.com/uk/culture/a41498857/who-is-robbie-mullen-whistleblow...