Kei Yamamoto

as Masaru Koga

as Narrator (voice)

as Hiroshi Kawamura

as Murase

as Kosuke Mito

as Ryusuke Nakazawa

as Serizawa

as Yûki Jûtarô

as Akihiko Kishi

as Enokita Takao

as Yuzo Asada

as Katsuhiko Nanakura

as Dr. Yamamoto