Aya Kujo

Aya Kujo (九条 綾) is a former FPD officer who transferred to the LAPD under encouragement from her partner Masaki Mizoguchi, whom she loved. After the scrutiny and disappearance of Mizoguchi, Aya returns to Futo and purchases the Triceratops Memory in order to take revenge against the men responsible for Mizoguchi's disappearance and death: the crooked cops Himuro and Ken Akutsu. As the Triceratops Dopant (トライセラトップス・ドーパント), she possesses superhuman strength, can generate spheres of plasma, and uses the Dinosaur Club (ダイノソアクラブ) as her weapon. However, after killing off Himuro and Akutsu, Aya's revenge shifts to Futo as the Gaia Memory's corruptive powers begin to take hold. She eventually gains the ability to transform into a giant bipedal Triceratops called the Big Triceratops (ビッグ・トライセラトップス) before Kamen Rider Accel stops her with the AccelGunner and its Gaia Cannon.