I was 20 pages into the script. It was going quite well but I thought, ‘I want Bill to witness this. I want Bill to notice that they’re the same man. I want Bill to say things to him.’

Steven Moffat in SFX 

I can’t link to this (because it’s not online anywhere) but it is really interesting to me that she was’t originally planned to be in it. I have to wonder if it’s going to be her that’s the voice of the critique of the past because if so, very well played. 

(via disasterlesbianamelia)