As Margaery Tyrell on "Game of Thrones," Natalie Dormer is no stranger to a cleavage baring ensemble. Come on, you don't get to be queen of Westeros without flashing a little skin!

Since she's proven she can pull it off onscreen, the actress attended Thursday's "Game of Thrones" premiere in London (where she skipped the red carpet) in a dress Margaery would likely steal for herself. The navy blue number has a neckline that's cut down damn near to her belly button, but thanks to the long sleeves, the dress doesn't feel tarty. A nude panel underneath adds visual interest, and her spiked Maria Black jewelry feels simple, yet appropriately dangerous.

Dormer has been doing the center-parted, curled hair look for a while, but that's likely because she's growing out that bad-ass side shave — and we sympathize with the hardships of weird hair phases.