 The captured wildling Osha ( Natalia Tena ) , now a servant of the Starks , is harassed by Theon Greyjoy ( Alfie Allen ) , who warns her that if she had been arrested in his homeland the Iron Islands , she would have suffered a worse fate . As Maester Luwin ( Donald Sumpter ) tells Theon to leave her alone after witnessing Theon 's sexual advance on her , he asks Osha why she and other wildlings are coming south from the Wall . She reveals they were fleeing from the White Walkers , who have apparently returned after millennia of slumber , and declares that every army in the Seven Kingdoms should be marching north to confront that threat . 
