Stephen Graham has undergone a huge makeover for his latest role, with fans seeing him with a head of bright green hair. The Scouse actor currently stars in The Walk-In on ITV. He plays a reformed neo-Nazi, now working as a journalist for the anti-racist organisation Hope not Hate. It's the latest in a long line of gritty roles for the 49-year-old, but his newest venture is a far cry from the likes of Line of Duty and Peaky Blinders. READ MORE: Netflix launches £4.99 package with adverts in major subscription change Stephen plays Mr Wormwood in a new musical...