Set in 1820s Cornwall, Jamaica Inn follows Mary as she is drawn into a world of smuggling and romance.
Matthew McNulty (Misfits), BAFTA NOMINEE!!! ♥♥♥ Sean Harris (Southcliffe) and Ben Daniels (House of Cards) will also star in the adaptation of Daphne du Maurier's novel, penned by The White Queen's Emma Frost.
The series - which began filming in Cornwall, Yorkshire and Cumbria last September - also stars Joanne Whalley (Gossip Girl) and Shirley Henderson (Harry Potter).
Scriptwriter Frost said: "I love Daphne du Maurier's novels and it's been a lifelong dream to adapt Jamaica Inn.
"I hope I have done justice to this wonderful tale of morality, survival and desire.
"It has been a pleasure and a privilege to adapt it for the screen, and I'm tremendously excited to see how our talented cast and director bring the scripts to life."
Airs on 21-23 April, btw. I CAN'T WAIT...though her accent sounds a little off to me [though I'm American]. Y/n?