On the face of it, Game of Thrones may appear to just be about sex, swords and dragons (as if that wasn't enough), but it's so much more than that. For at its heart, Game of Thrones is about people. It's a complex, layered character study into the things people do for love, the things they do for family and, of course, the things they do for power – power that, in Westeros, corrodes, corrupts and consumes. No one is conventionally good or evil, and nobody is what they seem.
Season two, premiering tonight on Sky Atlantic, goes even further. Adapted from A Clash of Kings (the second book in the series), it not only expands in terms of scope and scale but also introduces a range of new characters with their own background and narrative. It's daunting enough in the book, but with so many characters to cover already, the TV show has its work cut out so as not to make it confusing for those who've come fresh to the show. It's something that, judging from the first four episodes we've seen, it does well - but context does suffer. So, keeping that in mind, here's a spoiler-free guide to the new players in the most dangerous game of all. Who will win, and who will die?