Shuichi Aizawa

Shuichi Aizawa (相沢 周市, Aizawa Shūichi) is a member of the Kira investigation team that leaves the team under the guise of needing to support his family because the Japanese police cut their funding, though L would have paid for it. He returns after L's death, where he is one of the first to suspect Light of being Kira, and helps contribute to his eventual defeat. He becomes the leader of the investigation team afterwards. He is voiced by Keiji Fujiwara in the Japanese anime and Trevor Devall in the English dub. In the film, he is played by Shin Shimizu.