Now that fans know who will be playing Anastasia Steele and Christian Grey in the movie "Fifty Shades of Grey" it's time to cast the next leading couple - Kate Kavanagh and Elliot Grey.

E.L. James announced that Dakota Johnson and Charlie Hunnam will play the lead roles but has kept quiet about the supporting roles in the movie. According to rumors, filming is scheduled to begin in the fall and even though it's said the entire shooting process won't take long "Team 50" still has a lot more casting news to announce before they can get started. So who will be playing Kate Kavanagh and Elliot Grey?

According to Hollywood Gossip, two fan-favorites are reportedly in the lead to land the parts - Chris Hemsworth and Blake Lively. From the book, we know that Elliot is Christian's older brother and is just as insanely hot. He's a lot nicer than his billionaire brother and ends up falling in love with Kavanagh, Steele's best friend.

Kavanagh is described as "vivacious, confident, feminine, and strong willed." She is also the reason Steele ends up meeting Christian.

Other names mentioned to play Kavanagh include Katie Cassidy and "American Pie" actress Katrina Bowden. According to Wetpaint, Cassidy has expressed interest in being in the movie. She reportedly tweeted a link to a story about her playing Kavanagh followed by another tweet saying "yes please!"

Bowden also expressed interest in the role telling Enstarz.com that she couldn't see herself playing Steele but would have no problem starring as the feisty friend.

"Playing Anastasia would be out of my comfort zone, but I could see myself playing her best friend," she said adding that she is a huge fan of the books and will be seeing the movie no matter what.

Other names mentioned to play Elliot have included Alex Pettyfer, Kellan Lutz, Cam Gigandet, Paul Walker, Ryan Gosling and Chris Pine.