8. Mia Wasikowska on "In Treatment"
If you saw this HBO series, then you know what I'm talking about. As the suicidal teen gymnast Sophie, Mia Wasikowska delivered an excruciatingly vulnerable turn that made adolescence all too real for the viewer. And, with the help of a nuanced script, Wasikowska believably brought Sophie through a psychological arc. Expect movie stardom for this Australian actress with the perfect American accent. She's since starred in Tim Burton's adaptation of "Alice in Wonderland."
Pictured: Mia Wasikowska.