I love science fiction stuff - I'm a bit of a dweeb like that.

When I first got the job, I was told nothing about my character. She's an anthropologist and she's tough, she's a female Indiana Jones. That's what I went into [Lost] knowing.

If I have the power to post 'Happy Birthday' on someone's Facebook page and make them feel really good, it feels really good to make other people feel really good. I love it. I'm a huge Facebook and Twitter person. And I love talking to my fans. It's fun.

The danger with playing someone tough is that the character can become two-dimensional and mean and nobody likes her.

I never did any sports at school. It wasn't until I moved to America, to New York, when I was about 20 that I actually thought that if I wanted to be an actress I might have to start working out.

I'm not Irish. Just because I have red hair doesn't mean I'm a lucky charm, you know?

I'm incredibly cheesy. I'm all about happy endings and all of that.