Which 27-Year-Old Actress Is “Bringing Sexy Back” in a Backless Swimsuit?

We love this adorable actress for three reasons: She’s equal parts smart, sassy, and hilarious; she starred in one of our favorite comedies of 2012; and she tweets things like “If I were a contestant on The Bachelor I'd just end up falling in love with the weird sound guy and making things uncomfortable for everyone.”

Still stumped? Click through for the reveal!