Okul is a Na'vi of the Kame'tire clan. A curious herbalist, Okul was mentored by the great Kame'tire herbalist Siul, helping him study the effects of the Yavä'. At some point, they became trapped in the yavä' for several weeks before being helped to return home by the Sarentu. Tsahìk in training under Anufi. Non-binary