Maruo Arima

Maruo Arima (有馬 丸男, Arima Maruo?), also known as "Maru" (マル?) , is a bank robber who a decade ago gained the Beast Memory and became the Beast Dopant (ビースト・ドーパント, Bīsuto Dōpanto?) with superhuman strength and self-regenerative powers. Attempting an armored car robbery at the Futo Dam with his wife Suzuko, the case was investigated by Sokichi Narumi until the evidence went dry and when Isamu Bito turned himself in for the crime. By the present, now rich, Maruo is still looking for a bear statue that holds the Zone Memory. Once it returns to Suzuko's possession, the two return to the Futo Dam to finish their heist. However, the Beast Dopant is weakened by Kamen Rider Double CycloneJoker Xtreme's Prism Break Maximum Drive before being eventually defeated by the Bicker Charge Break Maximum Drive.