Shirley Henderson was significantly older than the character she played in the Harry Potter films! People might be shocked to learn about the age difference between the Scottish actress in real life and her spectral teenager in Chamber of Secrets and Goblet of Fire. Keep reading to find out more… Shirley, 60, spoke with The Independent for an interview that was published last week about how she was actually a 37-year-old playing the eternally 14-year-old ghost known as Moaning Myrtle in the Harry Potter films. “The casting director said, ‘Go for it – and don’t mention your age,’” she…