I think you have to be true to the script that you're given.

That's the thing about prep, is that it's a joy to have it there and you can spend all this time prepping, but ultimately you have to look at your script and turn up on the day. It's embedded in there somewhere but you have to forget it all and play the scene because we are storytelling.

The Gallifreyan balls are my favourite because you can juggle with them!

I think it's the people that you work with who change you the most.

Its impossible to go onto the Tardis set and not play with things and fiddle with dials.

Every day is different, there's no day that's the same.

I knew when I was 10 that I wanted to act full-time.