Hugh Laurie admits he is a nightmare to work with. The 46-year-old actor says he feels guilty about upsetting his co-stars but he isn't a very happy person. He revealed: "Unfortunately I'm not a happy person to work with and I feel very self-conscious about that. I wish it were otherwise but I can't help it, it gets on top of me and I get frustrated.

"I'm struggling to change and at least make other people's day easier, even if I can't make my own any better. I'm trying to be more cheerful or pretend to be more cheerful. I'll settle
for pretend at the moment.

Meanwhile, the 'House' star says life in Hollywood is like living on an oil rig. He revealed to Night and Day magazine: "I wasn't prepared for this at all. I don't really have a life outside of this bubble. I'm here filming from first thing in the morning until last thing at night. Then I'm straight back to bed. It's not much of a life really."

He said: "It's a bit like being on an oil rig. I've not had one second of a Hollywood life - I haven't even seen a Jacuzzi."