I think zombies are the great analogy for all of our fears about all of the scary things that happen on our planet, and the potential for scariness on our planet. Being chased by anyone or anything can be scary. It is just a big, fun analogy.

People say to me, 'Oh, being a mother must make you a better actor,' and I think, 'Well, I never sleep, I have very little time to think about anything except when I'm actually there.' I wonder whether that makes me a better actor. I think it must on some level.

At the beginning of my TV and movie stuff, I would be really critical of myself, but I've gotten better and better. There's always little things that I think, "Oh, that could have been whatever," but most of the time I'm able to let go and watch like an audience member.

My career has taken so many different paths to this point that I've come to realise that we're all the same, everywhere I've been. We're all just creatures trying to tell stories as good as we can, so whether that's in a tiny theatre or as part of the biggest multi-million dollar film, we're all still just trying to tell a good story at the end of the day.

I can't worry about whether roles will be there for me when I'm older.

I ended my Twitter account a week after I got on the show. I felt like, "This is not a good tool for me to keep my narcissism at bay," so I cut it off.

The truth is I quite like to dress in jeans and a woolly jumper.