MUMBAI: Sons of Anarchy star Charlie Hunnam has officially been set to play Christian Grey in Fifty Shades of Grey, the Universal Pictures and Focus Features adaptation of the runaway bestselling book series.

Hunnam, who had been rumored for weeks, more recently starred in the Guillermo Del Toro-directed Pacific Rim. Author EL James made the casting official on her Twitter page. Sam Taylor-Johnson is directing a script by Kelly Marcel and Michael De Luca and Dana Brunetti are producing along with the author.

This follows after the official casting of Dakota Johnson to play the role of Anastasia Steele. Grey is the young, wealthy industrialist with a dark past who favors S&M relationships. His loyalty to the dominant-submissive subset is tested when he meets the young college graduate Anastasia Steele, who seems like the perfect girl for him.