When does a being with nefarious means to achieve greater good stop? And a villain with a perverse bent begin? Stephenie Meyer's Twilight saga attempts an answer to that quandary with the Volturi, a coven of hyper-wizened vampires. 

Jane is the Volturi's best foot forward, a 1,200-year old vessel of pain. Described in the books as no more than an adolescent boy, Jane and her equally powerful twin brother Alec police showy bloodsuckers, keeping their kind a secret. Dakota Fanning plays her with catatonic resolve in the Twilight movies.