Nidhiki was once a Toa of Air of the Toa Mangai. He later betrayed his teammates and became a Dark Hunter, and was mutated into an insectoid monster. While formerly regretful over his betrayal, his mutation left little to no good inside of him. Selfish, and treacherous, Nidhiki is an extremely intelligent individual, known for his cunning tactical thinking and skill in trapping his victims. Nidhiki is valued among Dark Hunters for his knowledge of the Toa's tactics and ways of thinking.