'Game of Thrones' Season 2: Natalie Dormer cast as Margaery Tyrell
"The Tudors" actress Natalie Dormer is the first casting hire for the second season of HBO's hit fantasy drama and will join the show as a series regular, EW reports. Dormer played Anne Boleyn on the Showtime series.
Dormer is set to take on the role of Margaery Tyrell who -- spoiler alert! -- is pledged to marry Renly Baratheon, late King Robert's brother, as part of House Tyrell's play for Renly to seize the Iron Throne from King Joffrey and the Lannisters.
Dormer also has a role (Pvt. Lorraine) in the upcoming "Captain America" film starring Chris Evans.
Earlier this week, HBO denied reports that Gerard Butler would be joining the show as Stannis Baratheon, the oldest surviving brother of King Robert.
"Game of Thrones" returns in Spring 2012.