True Blood star Deborah Ann Woll is in Pain… True Blood star Deborah Ann Woll has been confirmed for the flick Someday This Pain Will Be Useful to You. Woll, who plays vampire Jessica on the hit HBO show, will joins Marcia Gay Harden, Lucy Liu, Ellen Burstyn and Stephen Lang in the ensemble picture. Based on a novel by Peter Cameron, the story follows an isolated young man (Toby Regbo) who deals with his dysfunctional family before moving away to college. Woll will play the man’s sister, a fledgling writer who is dating a married professor. Roberto Faenza is directing the feature which is scheduled to begin in September in New York.