Daisuke Yamamoto (山本 大介), also known as as Amazon (アマゾン) is the main protagonist of Kamen Rider Amazon. He got lost in the Amazon rainforest during a plane crash when he was a baby, before growing up a wild child. At the age of 23[1], he was attacked by the Geddon and was transformed into Kamen Rider Amazon (仮面ライダーアマゾン, Kamen Raidā Amazon, Masked Rider Amazon) so he could save the world.