Doctor Who executive producer, Russell Davies, has revealed that he wrote the recent DW episode, Midnight for actress Lesley Sharp.

Davies told Doctor Who Magazine that the character of Sky Silvestry was written especially for Lesley, saying: “We needed the absolute best for this episode, and we got them. I suggested Lesley - I actually wrote it thinking of her - because I’d been dying to work with her again and she’d keep asking to be in Doctor Who.”

He continued: “She’d send me emails asking to be the Queen of Outer Space, which isn’t exactly what she got, but this is better, probably. Technically, the part of Sky is the hardest thing I’ve ever asked an actor to do, and Lesley’s simply astonishing.”