Mystery about Eric’s dark hair solved

Alan Ball teases us again about the reason of the sudden darkened hair of Eric Northman. He has told Ausiello:

“Because when vampires keep secrets from humans that they love, their hair follicles turn darker,” deadpans Alan Ball. “And that’s especially true if they’re carrying a torch for a blond waitress.” Very funny. The real reason, please? “Alexander made a movie during his hiatus and his hair was darker when he returned,” explains Ball with a laugh. “It wasn’t a choice [we made].”