A new trailer for Game of Thrones gives us another look at a few of our favorite characters in the last of Westeros, and even a new face as well. Emilia Clarke returns as Daenerys Targaryen, who now has a fully-grown dragon under her control. We also get a new look at Ciarán Hinds as Mance Rayder, the King North of the Wall who was referenced several times in Season 2 and plays an important part in this season's story. Check out the latest video to prepare for the coming winter storm this season, which kicks off with "Valar Dohaeris" Sunday, March 31 at 9 PM ET on HBO.