This is a list of characters of the 2001 Japanese tokusatsu television series Kamen Rider Agito.
Shouichi Tsugami (津上 翔一 Tsugami Shōichi) is the series protagonist. He suffers amnesia and adopted the addressed name on a letter found in his possession when he washed ashore. He lives with the Misugi family and does all of the household chores. Using the Alter Ring (オルタリング Oruta Ringu) belt, Shouichi can transform into Kamen Rider Agito (仮面ライダーアギト Kamen Raidā Agito), an ancient and powerful warrior whose abilities are constantly evolving. As the series progressed, he discovers the reason behind his amnesia and that his real name is Tetsuya Sawaki. He has a Honda VTR1000F, which turns into the Machine Tornador (マシントルネイダー Mashin Toruneidā) when he transforms.
Shouichi Tsugami is portrayed by Toshiki Kashu (賀集 利樹 Kashū Toshiki).
Mana Kazaya (風谷 真魚 Kazaya Mana) is the daughter of Nobuyuki Kazaya and niece of Yoshihiko Misugi with whom Shouichi lives. It is revealed that she also possesses the Agito Seed, as Tetsuya Sawaki awakened her powers and eventually asked her help to resurrect Ryō. She was named after mana by her father.
Mana Kazaya is portrayed by Rina Akiyama (秋山 莉奈 Akiyama Rina); as a child, she is portrayed by Satomi Tanimura (谷村 聡美 Tanimura Satomi).
Yoshihiko Misugi (美杉 義彦 Misugi Yoshihiko) is a professor of psychology at Jyohoku University. He lives with his son, Yoshihiko, and Shouichi, and once taught Sumiko Ozawa.