Tetsuya Takeda
— Shota Tanabe (Tokyo Fujimi Zoo Keeper)
山崎久美子
— Sachiko Kogure (Akimoto's fiancée/Pianist)
萩尾みどり
— Setsuko Tanabe (Shota's wife)
水谷麻里
— Mariko Kurita (Director Kurita's daughter)
大山のぶ代
— Momoyo (Shota's mother)
河原崎長一郎
— Hideo Hayakawa
三上寛
— Kikuo Yokoyama (Akimoto's sidecar driver/Army Sergeant)
ラサール石井
— Genji Oshima
三谷昇
— Kiyoshi Saito
神山繁
— Masahiro Murakami
名古屋章
— Shoichi Takahashi (Director of Tokyo Fujimi Zoo)
目黒祐樹
— Chief of Staff
Hideji Ōtaki
— Hiroshi Kurita (Director of Nagano Zoo)
永島敏行
— Keiji Akimoto (Army Major)