Jun Maehara (前原 淳, Maehara Jun) was the scout of the Nozama Peston Service. After his death at the hands of the Dragonfly Amazon, he was revived by transplanting Amazon Cells into his corpse. He used the Amazons Driver to become Kamen Rider Amazon Sigma (仮面ライダーアマゾンシグマ, Kamen Raidā Amazon Shiguma).