Zeljko Ivanek is returning to True Blood.
The actor, who has guest-starred on pretty much every TV show to ever air (Damages, House, Big Love) plays the powerful Magister. He's the character who ordered Bill to turn Jessica.
As first reported by TV Guide, look for the Magister to crack down on the illegal V trade in Louisiana on season three. This will create problems for the Queen, Eric and Pam because they are all key players in it.