Peter Egan looks back on the BBC’s 1987 adaptation of John le Carre’s A Perfect Spy, one of the writer’s most acclaimed novels, dramatised a year after the book’s publication. Egan starred as British intelligence officer and double agent Magnus Pym, in a role that was a departure from the comedies he was best known for. Here, he talks about the making of A Perfect Spy, the challenges that came with adapting the work of such an acclaimed writer and what he hopes viewers coming to the drama for the first time will take from their viewing experience today.