Tatiana Maslany

I was a dancer from about the age of four, so I was always performing and forcing my parents to watch my brother and I do 'Jesus Christ Super Star' in the living room. My first step was community theater, and then I started to do films.

The thing about dancing - what it taught me all those years - is it gives you an amazing sense of discipline in forcing yourself to do things that you know are good for you but you don't really want to do.