4. Scarlett Johansson
This husky-voiced New York native has been in the entertainment industry pretty much from the get-go, attending the Professional Children's School in Manhattan and making her first television appearance at age 8 (an uncredited role in a skit for Late Night with Conan O'Brien). Shortly after, she made her feature film debut in North, starring alongside a young Elijah Wood. At 14, she impressed critics and audiences alike with her performance in The Horse Whisperer, with Robert Redford and Kristen Scott Thomas. As an adult, she's a legitimate A-lister, starring in high-profile film projects that almost always do well at the box office. In 2010, she received accolades for her work in a Broadway production of A View from the Bridge, winning a Tony award for her performance.