AGE 12: Jared Gilmore

Actor / "Once Upon A Time"

What makes him powerful: Gilmore plays one of the lead actors on ABC's hit "Once Upon A Time," which brings together all of Disney's fairytale characters in one world. Before landing on network television, he also played Bobby Draper on "Mad Men."

Other powerful 12 year olds: CJ Adams, ("The Odd Life of Timothy Green") / Daniel Huttlestone, the young thief in "Les Misérables."