Kaname Tōsen (東仙 要, Tōsen Kaname) was the captain of the 9th Division of the Gotei 13 until he betrayed Soul Society, alongside Sōsuke Aizen and Gin Ichimaru. This betrayal put him at odds with his former best friend Sajin Komamura, as well as his former lieutenant in the 9th Division, Shūhei Hisagi. He formerly served as the 5th Seat of the 9th Division under Kensei Muguruma.