Arielle Kebbel will play Gia Matteo in the final chapter of the Fifty Shades of Grey trilogy Continuing a flurry of recent casting announcements tied to the franchise, The Hollywood Reporter today brings word that Ballers star Arielle Kebbel has signed on for Fifty Shades Freed. According to the trade, she’ll play Gia Matteo, an architect to whom Anastasia gives the nickname “Miss-Provocative-And-Unfortunately-Good-At-Her-Job.” An erotically charged romance, the Fifty Shades of Grey franchise has capitalized on it’s naughty-but-not-too-naughty aesthetic to the tune of more than $570 million worldwide.