True Blood actors adopt Southern Accents : They speak American

I am not one of the people that has had a problem with the accents of any of the actors, I think the Canadian/Kiwi , Brits, Swedish and Australian actors are doing a pretty good job with their American southern accents and I have lived in the South all my life.

I especially love Bill's kind of old fashioned Southern accent almost like " Gone with the Wind". Some of the cast, like Sam and Arlene ( Sam and Carrie ) really were born in the South and Alan Ball seems to just be content with letting them have their own natural accent which are derived from their own home states of South Carolina ( Sam was born in NOLA ) and Georgia respectively.

TELEVISION | Actors from across the pond learn fine points of Yankee slang as they assimilate for sake of characters
BY MARY HOULIHAN from Chicago Sun Times

A growing number of television actors are not only studying scripts, they're also studying American vowels and consonants. Popular actors from England, Australia and New Zealand have found a home on the small screen playing American characters.But just how well are they doing with their adoptive American accents? For some perspective, we checked in with Cecilie O'Reilly, a busy Chicago dialect coach, who most recently worked with American actors and Irish accents for Steppenwolf Theatre's production of "The Seafarer."

Anna Paquin, New Zealand

Role: Sookie Stackhouse ("True Blood"), a Louisiana barmaid who hears voices and falls in love with a vampire.

Accent: Paquin's Southern accent is "right on target. I pretty much couldn't see any problem with it."

http://www.suntimes.com/entertainment/television/1409938,CST-FTR-accent03.article