VIDEO : TNT Casts Dakota Fanning As Lead In 'The Alienist'

22-year-old Dakota Fanning will star as the female lead in the upcoming TNT drama series, The Alienist. The series is based on the bestselling book of the same name, by Caleb Carr. It's a story set in New York City's Gilded Age and it follows "a team of three, who investigate a series of brutal murders in secret on behalf of newly appointed police commissioner, Theodore Roosevelt.