'True Blood' S4 new trailer: Humans, Bill and Eric come in peace

Well, we had to expect that Russel Edgington's (played by Denis O'Hare) televised display of vampire bloodlust was going to have an effect on human-vamp relations in Season 4 of HBO's "True Blood." But, who knew the American Vampire League would make Bill (Stephen Moyer) and Eric (Alexander Skarsgard) its new ambassadors?

In a new Season 4 trailer above, we see Eric and Bill have been drafted to do some damage control. Eric, after all, is a tax-paying American and small business owner. Hah! We also see more extended looks at the witches, developing romances, and lots of vampire bites.

Plus: HBO just announced that fans can watch the first three minutes of Season 4 on May 29 via HBOGo.