Richard Madden is giddy at the prospect of going dark. The 32-year-old Scotsman, known for playing doomed scion Robb Stark on Game of Thrones and the trauma-stricken David Budd on the BBC’s Bodyguard, is eager to shed his broken-good-guy image. “I really enjoyed being a bastard,” he says, referring to his role as John Reid, the rebrand manager and former lover of Elton John (played by Taron Egerton) in this month’s fantastical and much-anticipated Rocketman biopic. Before the film's debut, thoug