We're thrilled to finally stop the guessing game, now that we know Dakota Johnson will be playing Fifty Shades of Grey leading lady Anastasia Steele. But just who is she?

Dakota is perhaps best known for her starring role in the Fox sitcom Ben & Kate, which debuted in fall of 2012 and lasted for a season. The 23-year-old actress is also the daughter of celebs Don Johnson (Miami Vice) and Melanie Griffith (Working Girl). Plus, her grandmother is Tippi Hedren, who starred in The Birds! In other words, she's basically Hollywood royalty.

Dakota began her career in the entertainment industry as a model, having signed with IMG Models in 2006. She then became the face of MANGO Jeans in 2009.

And Fifty Shades is definitely not her first film role. She had a memorable appearance opposite Justin Timberlake in 2010's The Social Network, in which she plays the Stanford student who tells Justin's character about Facebook. She has also had small roles in 21 Jump Street, The Five-Year Engagement, and Beastly.

Frankly, we're just jealous that she's previously filmed a bedroom scene with Justin Timberlake. And now that she's playing Anastasia, she'll definitely be bringing sexy back.
 

Credit: AlloyDigital Photo: 'Fifty Shades of Grey' Gets a Director!