EW broke the casting news, saying this about the role: “Rayder has united the disparate clans of the Far North behind a single mission: To attack The Wall. He’s been frequently referenced (though unseen) in the HBO hit fantasy drama’s first two seasons. In the second season finale, undercover Night’s Watchman Jon Snow (Kit Harington) was being taken to meet Rayder.”
Season three of Game of Thrones will premiere in March 2013.
Source: EW
—Posted by Rebecca Murray