Fuyuhiko and Kokichi have the same voice actor. Same with Akane and Miu, Hifumi and K1-B0, Kirigiri and Kaede, Parts of Junko and Genocider Sho, Sayaka and Chihiro, and uhhhhhhhh oh yeah Ibuki and Tenko, Yasuhiro and Gonta, Leon and Shuichi, and Gundham and Ryoma