Casting | Rôle |
|---|
| 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 |
