EXCLUSIVE: Kelly Overton (The Ring Two) and Louis Herthum (The Last Exorsism) have landed major recurring roles on the HBO vampire drama True Blood. Overton has been booked for 6 episodes and Herthum has been tapped for 5. I hear that the deals for both include series regular options for next season. Overton, repped by Innovative Artists, will play a dirty, beautiful werewolf named Rikki who demands to know what’s become of the pack leader. Herthum, repped by Main Title and Progressive Artists, will play a particularly large Marine-type werewolf who refuses to bow down before the new pack leader. He is also recurring on A&E’s Longmire.