My humour and my work ethic definitely come from my Scottish side, and I have to say the sense of humour doesn't really translate when I'm in America.

I am not one of those actors who dwells on the histrionics and the subtext and future text of the character. I deal with the scenes that I'm doing at that specific time, because if I do that, they play in more of a real way.

I've always said in my career and in my life I only do things I'm interested in.

As an actor, I only play what is in the moment, rather than in the future, but sometimes the past is more important than what is coming up in the future.

Whenever I'm in Glasgow I go and stand outside the front of the house I grew up in, which is in Mount Vernon.

If you put a label on yourself, people will pigeonhole you.

I trust the [series] writers when I'm filming, because it's interesting for me to go in every week and see what's going to happen, and the challenge for me as the actor is to make it work.