RATINGS: Cast & Crew

DOB: February 16, 1989

Background: Olsen is an actress and the younger sister of twins Mary-Kate and Ashley Olsen. She graduated from NYU's Tisch School of the Arts and belonged to the Atlantic Theater Company.

Filmography: She appeared in her sisters' productions, but this year she made a name for herself in "Martha Marcy May Marlene," in which she plays a young woman who struggles to rejoin her family after leaving a cult. The film premiered at the Sundance Film Festival and also stars John Hawkes and Sarah Paulson. This year she also appears in the horror film "Silent House."