Again the WiC crew have it. Natalia Tena will be playing wildling, Osha. Natalia plays Nymphadora Tonks in the Harry Potter franchise and is a great addition to the Game of Thrones cast. While Osha is described as older in the novels, George RR Martin tells us not to worry. He says
When I saw that she was reading for Osha, my first thought was, “She’s great, but no way, she’s too young and too hot.” Then I saw her reading, and none of the other Oshas had a chance. Her charisma grabbed me by the throat and I could not take my eyes off her. David [Benioff] and Dan [Weiss] felt the same way. We’re all thrilled to have her.
With HBO’s extensive list, and George RR Martin’s clues/confirmations we are nearing a full cast. In good time too, because filming starts in a couple of weeks and the Paint Hall is already buzzing with preparation.