Haddisi was a Matoran of Tegen Nui that witnessed the creation of the anti-shadow barrier, created by the Toa Tegen. He later became a Toa Akyna along with Ahsia, Atast, Taatoh, Kamahn, Dekea, Kadyx, and Nadhoku. When Makuta Venetraze broke through the barrier, he drained most of Haddisi's light, as well as the other Toa Akynas'. But Kadyx was able to stun the shadow leeches before the drained any more light. Taatoh, however, was kidnapped and taken to Gahru Nui where had his light completely drained by Makuta Cortrivu.