Notable Role: Alice in The Brass Teapot (2012)

It's truly a wonder that Juno Temple isn't a widely recognized name yet. Just one glance at the 23-year-old's filmography and you'd think she'd been acting since birth. Since 2007, she's had over 30 films to her credit, most notably Atonement and The Dark Knight Rises.

What makes her so prolific? It's not just not her talent, it's also her fearlessness. The brilliant actress, who averages at least two films per Sundance Film Festival—this year alone, she had three: Magic, Magic, Lovelace and Afternoon Delight—is known for playing characters that toe the line of taboo. Just watch her as Matthew McConaughey's preteen lover in Killer Joe, and you'll see what we mean.