56. Nicole Beharie
Biggest accomplishment this year: Co-starring in the Jackie Robinson biopic 42
A relative newcomer to the Hollywood scene, Nicole Beharie has earned much critical praise for her role as Rachel Robinson in the Jackie Robinson biopic 42. She is rumored to be following that up with a starring role in a pilot for Fox based on the Sleepy Hollow movie and original short story. While her breakup with Michael Fassbender-her costar in 2011's Shame-made headlines earlier this year after Beharie announced it via Twitter, it seems a safe bet that she'll be making far more headlines for her acting in the near future.