Stephen Graham is playing activist and reformed Neo-Nazi Matthew Collins in 'The Walk-In'.
Stephen Graham will star in The Stand In
The 'Line of Duty' actor has been cast in ITV's upcoming five-part drama telling the true story of how a Neo-Nazi plan to kill an MP was foiled by an inside man.
The upcoming series - which has already wrapped filming in London and surrounding areas - has been written by Jeff Pope and directed by Paul Andrew Williams.
In a press release, ITV said: "It’s a thought-provoking, conscience stirring drama which poses timeless questions - What makes people fear and hate those who are different from themselves? Can someone’s view of the world be fundamentally changed?
"Forced to flee the UK and go into hiding in the 1990’s when he became a mole from within the BNP, Collins returned to Britain to make a new life for himself.
"The drama focuses upon Collins and his work to stop the radicalisation of young white men before it begins."
Viewers will see Collins looking to infiltrate, "expose and fracture" a Far Right Neo-Nazi group which was "making itself out with a youthful clean-cut image, hell bent on creating race war".
ITV added: "In spite of repeated attempts he wasn’t able to break into this particular group. Consequently, they continued to grow in strength relatively unchecked until the horrific murder of an MP Jo Cox brought their potential into sharp focus and they became the first Far Right organisation to be banned by the government since the Second World War.
"Although the marches and the social media posts stopped Collins knew the group would only have been driven underground and that he had probably lost all chance of getting information from within. Until one day in March 2017 when he received an email from someone claiming to be a member. A mole ready to talk about a horrific plan to murder a second MP."
The drama will also star Jason Flemyng, Dean Charles Chapman, Leanne Best, Andrew Ellis and Christopher Coghill.
'The Walk-In' will air weekly on ITV from Monday, October 3.
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