Gyro (ジャイロ Jairo) is a man who was Alain's instructor in the fighting arts. He transforms into a Gamma Ultima, which has unique powers such as the ability to reverse time within his surroundings. He also carries a sword for combat. By the time Adel used himself as a backup plan to initiate Demia completely, Gyro becomes worried that Adel has gone too far to takes too much risk on sacrificing their own people's life energies within the stasis capsules, even theirs without mercy. However, due to the Demia is under Adel's control, Gyro is forced to obey him. In the final battle, when Adel redeemed himself and died along with the Gammisers who manipulated him, Gyro is freed from the Demia. He was later reawakened in his real human body from the stasis capsule.

Gyro is portrayed by Seiji Takaiwa (高岩 成二 Takaiwa Seiji).

Series:  Kamen Rider Ghost