How words would be pronounced?

I'd really like a "British" accent, like many Americans, and was wondering how some words might be pronounced, in general or according to whatever regional accent you speak/know. Just any words, like ones I may have used already, hard, father, here, hair, car, and any others you can think of. If you have advice for more specific ones, like Hugh Laurie's or Wheatley's from Portal 2, that'd be awesome xD