Moffat: Killing off a Doctor feels very wrong
Speaking to the Mirror, he said: “Regeneration scenes are the toughest but most exciting part of Doctor Who – you don’t really know the show until you’ve written one.
“Previously, I’d only written Matt’s end of David’s regeneration – this is the first time I’ve actually killed off a Doctor. It feels like a very wrong thing to do to your childhood, not to mention one of your friends!”
On Peter Capaldi he said: “Peter’s only just done his first readthrough, and now the real work on his Doctor has begun. This isn’t the time for talking – it’s the time for working hard. See you next year!”