Your first look at Meera, Jojen and Mance Rayder
Next gallery »Our 20 favorite '30 Rock' guest stars
« Previous gallery'Mad Men' cast dresses up for season 6 promo pictures
Dianna Rigg of 'Game of Thrones'
Dame Dianna Rigg joins the cast of HBO's "Game of Thrones" playing Olenna Tyrell
Photo Credit: Helen Sloan/HBO