HBO has released a new behind-the-scenes featurette for the upcoming fourth season of True Blood, which debuts with Episode 4.01: She's Not There on Sunday, June 26 at 9 PM ET. Click on the video player below to get a glimpse at the set, with creator Alan Ball and cast members such as Anna Paquin, Stephen Moyer, Ryan Kwanten, all discussing the impact of introducing witches to Bon Temps this season.