I can't wait to work with Peter Capaldi as the next 'Doctor.' I know him from old; he's such a lovely man and will be brilliant in the role. As long as he tones down the Malcolm Tucker swearing.

In Edinburgh, there was a lovely little Episcopalian Church of Scotland church on my way to the theater, so I used to pop in there and soak up the atmosphere.

I love playing 'Madame Vastra.' Although I do suffer, spending three-and-a-half hours in make-up every morning to have her lizard skin put on. I was so excited the first day when we did the make-up test, but after six hours, I was like, 'Can we finish now?'

In the Church of Scotland, Episcopalian, you don't have to believe in Heaven, but you definitely have to believe in Hell.

A man is not old as long as he is seeking something.

For a long time, I so badly wanted to work with Jeremy Piven, and I ended up on 'Mr. Selfridge' with him. He was such a character - so brilliant to work with.