Miserix is an anti-villain in the BIONICLE series. Although he was a Makuta, he was not evil like his former lieutanant, Teridax. He was also a former leader of the Brotherhood of Makuta until he was betrayed by Teridax, who proceeded to take over as the new leader of the Brotherhood until he was saved by Krika from being executed and was eventually imprisoned in the island of Artidax.
He was later freed by the Order of Mata Nui and was allying with them and the Toa Hagah to seek revenge against Teridax.
In the aftermath of the main storyline, Miserix is the only surviving Makuta left in the Matoran universe and became the advisor of the Order of Mata Nui.