5. Margaery Tyrell
Widow of the late King Renly and daughter of the second-richest House in Westeros, the gorgeous Margaery makes for a picture-perfect queen, in public anyway. Behind closed tent flaps, however, she'll do whatever it takes to be the woman behind the Iron Throne, including most un-queenly threeways with Renly and her brother or alliances with the scheming Littlefinger. The ego and insolence with which actress Natalie Dormer delivers the once and future Queen's creedo – "Do you want to be a queen, my lady?" 'No…I want to be the queen" – is the best line reading of the season.