Icarax is a villain of the BIONICLE series. Although he serves as the minor villain in the rest of the storyline, he eventually became the main antagonist of the 2008 storyline, since he was responsible for the invasion on Karda Nui.
Approximately 100,000 years ago, Icarax and the other Makuta were created by the Great Beings, using the substance known as the Antidermis. He eventually became a member of the Brotherhood of Makuta as the organization began to come into being. He also serves as the general of the army of the Brotherhood of Makuta.
Shortly after the construction of the fortress of Destral, Makuta Miserix sent Icarax, Mutran, and his servant Pridak to the island of Xia, for the purpose of ordering the Vortixx to charge lower prices for their goods. After several days of negotiation, Icarax then lost his temper and proceeded to destroy several buildings. As the result, the Vortixx hastily agreed to the Brotherhood's demands. Soon afterwards, he and Mutran dragged Pridak from the island.
Later after quite sometimes when Pridak left the Brotherhood of Makuta's services and found the League of the Six Kingdoms, Icarax, Teridax and Mutran were presented in the meeting with the two members of the League; Kalmah and Ehlek who visited Destral. Kalmah told them that Pridak and the Barraki were about to take over several islands and he also ordered Teridax to sign on their contract. Teridax at first refused but when the Barraki threatened to destroy the Brotherhood of Makuta if they refused, Teridax immediately gave in and signed the contract then. After Kalmah and Ehlek left the scene, Teridax and Icarax then became suspicious of the Barraki's planning so they told Miserix about this and he ordered their another servant, Takadox to keep an eye on Pridak and the other Barraki.
Brotherhood of Makuta's Corruption
Invasion of Karda Nui
Sometimes later, Icarax eventually arrived into Destral and there, he found the remaining members of the Brotherhood trapped in the Protodermis seals and he proceeds to use his power to destroy the seals, freeing the Makuta in the process. Soon after that, Icarax informed all the Makuta about Teridax's defeat in the hands of Takanuva but he also told them that Teridax ordered them to carry out the Plan. Soon after that, Icarax seizes Teridax's throne and he eventually became a new leader of the Brotherhood.
Then, Icarax immediatelly ordered the Makuta strike team to invade Karda Nui.
Icarax have the brutal and violent personality. He was also very arrogant and aggressive.