Here's an interview with Martin about DWD:
http://www.cnn.com/2011/LIVING/07/10...html?hpt=hp_t2 (broken link)
And it looks like they've cast Gwendoline Christie as "Brienne the Beauty".
http://www.cnn.com/2011/SHOWBIZ/cele...tml?hpt=hp_bn5 (broken link)