Cassa Hun was a male Twi'lek Jedi Master who served the Jedi Order and the Galactic Republic during the Cold War with the Sith Empire. During his time on the Republic Navy staging area of Carrick Station and the Republic capital planet of Coruscant, Hun trained young Jedi Knights to become either Jedi Sentinels or Jedi Guardians and was stationed on the Republic base with fellow Jedi Masters Nimi and Sarala and Jedi Knight Briqui.