Heartbroken Coronation Street and Emmerdale stars paid tribute after the man who kickstarted their careers suddenly passed away. "Star-maker" David Johnson was the director of the Oldham Theatre Workshop, which he set up more than fifty years ago, and Anna Friel, Suranne Jones and Anne Kirkbride are just a few of his success stories. Corrie actor Anthony Cotton, who also trained with David, took to his Twitter account to say: "Just heard the saddest news.