Kazuya Suzuki (鈴木 一哉 Suzuki Kazuya): A faint-hearted rookie detective investigating the crimes committed by the Evil Organization. He seems perpetually confused by the details of Ryoutaro's possession by the Taros', and R-Ryotaro's, U-Ryotaro's and M-Wataru' antics do not help the situation. Kamen Rider Den-O & Kiva: Climax Deka Kazuya Suzuki was portrayed by Ryouta Murai (村井 良大 Murai Ryōta), who later played Yusuke Onodera, the A.R. World Kuuga, in Kamen Rider Decade.