^^

Not to jump on you, but I believe this is Hunter's first shot at TV, so she's recognized for her film work. In everything I've ever seen of her (I didn't watch "The Piano") she has spoken in her naturally strong southern accent. It's sort of what she's known for. So, I'd be really surprised if anyone thought she was hicking it up for her role as an Oklahoman. And, to be fair, I thought some of the characters on the show spoke without much of an accent at all.