He just said to give me the money from the cash register and the Lottery money. I just said 'OK,' opened the register and gave him the money.

I can't watch most of my work. Once I come on screen, all I can think of is 'What am I doing with my hands?' or 'Why did I lean that way?' or 'What's that look on my face?' It's too difficult to not focus on evaluating my acting.

I grew up in a small town in Ireland and didn't know any actors. I never thought it was a viable job. It wasn't until I was on 'The Tudors' that I realised it was a possibility.

Working crew made me realise that the actors are a very small part of a very big machine, with each part being vital to make the show work. It so important to remember that it's not about you, it's about the show, and working crew hammered that point home to me.

My friend once sculpted me a bust of Admiral Ackbar from 'Star Wars.' He's my favourite character in the films after Han Solo. He's that goldfish-type alien in the white costume. 'It's a trap!' I'm a big geek.

My mum's amazing - every time I achieve something in my career, she buys me a diamond earring.