I have just started watching, with Season 4, here in New Zealand, and I am appalled and amused by the various accents displayed by characters who are all supposed to be siblings!
Take Klaus for instance (supposedly the Big Bad). As is usual in US TV, he has a British accent. His mewlingly good brother Elijah has a good ole American one. Bad sister Rebekah (played by a sulky Aussie soap star) has a faux-British (actually Australian) accent. Bad brother Kol, who lasted half an episode, another Australian - really, can Americans not tell the difference?
One more question. Salvator? Seriously? The 'e' on the end is not just to make it look pretty, hey? Or is Salvator normal American pronunciation?