Fans of the hit novel 50 Shades of Grey can now simmer down, ’cause the lead actors for the film adaptation have been announced!

These two are our official Christian and Anastacia! (Just Jared/We Are Movie Geeks)

These two are our official Christian and Anastacia! (Just Jared/We Are Movie Geeks)

No other authority was more credible to announce it than author E L James herself, via Twitter last September 2.

“I am delighted to let you know that the lovely Dakota Johnson has agreed to be our Anastasia in the film adaptation of Fifty Shades of Grey,” she tweets.

Johnson is the daughter of actors Don Johnson and Melanie Griffith, and has recently starred in the recently-cancelled FOX show Ben & Kate, as well as appearing in The Social Network and The Five-Year Engagement.

Dakota Johnson is Anastasia Steele. (FOX)

Dakota Johnson is Anastasia Steele. (FOX)

As for the role of the seductive Christian Grey, James shares that “the gorgeous and talented” Charlie Hunnam will be playing it. Some of his notable projects include the hit FX series Sons of Anarchy and last summer’s Pacific Rim.

Amidst persistent rumors that the likes of Ian Somerhalder, Matt Bomer, and Robert Pattinson have bagged the role, news of Hunnam’s (as well as Johnson’s) casting were already encircling various news outlets since the start of August.

50 Shades of Grey will be released by Focus Features on August 1, 2014, as helmed by director Sam Taylor-Johnson.

Will Charlie Hunnam exceed everyone's expectations as Christian Grey? (Jack Guy)

Will Charlie Hunnam exceed everyone’s expectations as Christian Grey? (Jack Guy)