Courtney Ford with Matthew Davis (Alaric) on The Vampire Diaries

Courtney Ford, who played Christine Hill on “Dexter” last year and recently appeared as grad student Vanessa Monroe on “The Vampire Diaries,” has joined the cast of HBO’s “True Blood.” According to Deadline.com, the actress will play Portia Bellefleur, a lawyer who also happens to be the sister of Bon Temps’ hapless police chief. In the novels on which “True Blood” is based, the character’s presence has an immediate impact on the relationship between Vampire Bill Compton and Sookie Stackhouse.