森繁久彌
— Kyutaro Nagasogabe/Eiji Nagasogabe
Akiko Shima
— Midori Miyama
有島一郎
— Spy Joe
馬渕晴子
— Nahoe Minegishi
千葉信男
— Spy Zolkov
内海突破
— Newspaper Reporter
三木のり平
— Japanese part-time student who prepares to interpret His Highness Surabaya's words
市村俊幸
— Engineer at the Applied Atomic Energy Research Institute
山田周平
— Prematurely gray-haired man
三島雅夫
— Yuzo Tanigawa
Hisao Jushu
— Engineer of the Applied Atomic Energy Research Institute
小笠原章二郎
— Bald Man
光沢でんすけ
— Spy Tokuno
高瀬乗二
— Spy Kimura
外野村晋
— Farmer Father
Joe Shishido
— Applied Atomic Energy Research Institute Worker with a Tohoku Accent
飯田蝶子
— Grandmother Okin