Have you noticed that in the past couple of years there are several British actor/actresses starring in American TV shows, acting American parts? I wonder why that is. And I'm totally impressed with their American accents too and if I hadn't known beforehand that they are Brits, I'd never know.

These are the ones that I know of:

Hugh Laurie in House
Damain Lewis in Life
Anna Friel in Pushing Daisies
Stephen Moyer in True Blood

I'm wondering if there are more that I don't know and if there are any American counterparts in the UK TV making it big.

Mark Addy of Still Standing is British. I think his midwest accent is impeccable.