Philip: (On his character Rupert Galvin in the upcoming series, Demons): He's a tricky one. He works in codes. He's a bit of a wordsmith - a bit of a riddler. We don't know much about his background. We find out about his relationship with Luke's father and that's about much as you're told. I seem to specialise in playing enigmas, which is quite fun in a way. People that can form their own opinions about them.