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  ===Casting===
  Birgitte Hjort Sørensen was cast as Karsi, a wildling chieftain originally written as a male character. Zachary Baharov appeared as Loboda, a Thenn leader, and Ross O'Hennessy replaced Edward Dogliani as the Lord Of Bones in this episode. Ian Whyte, who had previously been cast as a White Walker, played the giant. Members of the metal band Mastodon acted as wildlings at Hardhome in a cameo appearance.