Tun Bohoi was a male Jedi Renunciate and a Legionnaire of Lettow. He was one of the many who followed Xendor during the time of the First Great Schism.
Being Force-sensitive, Tun Bohoi resided on Ossus, which served as the original home for the Jedi Order in its formative years. During his time spent there, Bohoi became fascinated with the mysterious teachings of Xendor. Xendor taught that the Jedi High Council placed too many restrictions on their teachings and desired to limit the understanding of the Force. When Xendor left the Order to establish an academy on Lettow, Bohoi went with him to learn. They called themselves the Legions of Lettow, and the Jedi Renunciates became powerful in the Force as they explored the Bogan through various Force traditions.
When the High Council declared war against the Legions of Lettow, Bohoi and the other Legionnaires took up swords to defend their right to study the Force. They met the Order in a major conflict, which the Order called the Great Schism. Bohoi traveled to different worlds, fighting off the Jedi as a member of General Xendor's vanguard. At the battle of Columus, Jedi Master Awdrysta Pina and his Jedi Knights cut off the vanguard from the main army. Despite Bohoi's reputation as a skilled warrior, he perished alongside fellow Legionnaires Xendor and Sethul Asaiage.