Age: 19
Best projects: Afterschool (2008), Another Happy Day (2011), We Need to Talk about Kevin (2011), The Perks of Being a Wallflower (2012)

Meet the emerging young actor who owns the most unique range of all this countdown’s inclusions. Later this year, when the teen drama The Perks of Being a Wallflower hits theaters, audiences will stand up and cheer for Miller’s turn as a rambunctious, party-starting high school senior whose homosexuality leads to heartbreak and bullying, yet art-house moviegoers will feel shock before the elation settles into their bones.

The reason: Miller is, at the moment, best known for his truly evil performance in the mega-downer We Need to Talk About Kevin, one of 2011’s best movies. He plays the titular Kevin, a bad seed who quietly rebels against his neglectful mother’s (Tilda Swinton) coldness by grabbing a bow-and-arrow and laying waste to several innocent victims, and that’s all we’re going to say about it here.

We Need to Talk About Kevin deserves your eyes, if for no other reason to see just how scary Miller can be before Wallflower completely subverts that reaction.