When Game of Thrones returns for its third season Sunday, the game will have more players on the field than ever. Even as the adventures of Tyrion Lannister, Daenerys Targaryen, Jon Snow, Robb Stark and company continue, a slew of new enemies and allies – plus all those in-between types that this show specializes in – will be making their presence felt in a big way.

Before you catch the premiere, get the basics on the newcomers by clicking through our gallery. (WARNING: MILD SPOILERS. We're not really telling you anything you won't find out quickly upon meeting these people. To learn how they really play the game, you'll have to watch.)

By Sean T. Collins