Sam Worthington

When I was young, my parents were these titanic, infallible figures. But Mum's illness and Dad's battles with diabetes and heart attacks had a ripple effect on me - reminding me of my own mortality and that these illnesses are genetic.

In the movies, they make you look good and tough, but in real life, it's completely the opposite. I do these ueber roles, I think, because in real life I'm quite shy and reserved. In real life, I'm a dork.

Working on 'Austin and Ally' has been an absolute dream! We literally have fun every single day! Whether it's scaring each other or singing together or just hanging out in each other's dressing rooms, the cast and I are super close! I feel really lucky to be with everyone on our set!

Set your sights high, the higher the better. Expect the most wonderful things to happen, not in the future but right now. Realize that nothing is too good. Allow absolutely nothing to hamper you or hold you up in any way.