| Shoichi Tsukioka | 小泉博
 | |
| Hidemi Yamaji | 若山节子
 | |
| K?ji Kobayashi | 千秋实
 | |
| Kyohei Yamane-hakase | 志村乔
 | |
| Zoologist Dr. Tadokoro | 清水将夫
 | |
| Captain Terasawa of Osaka Defense Corps | 恩田清二郎
 | |
| Hokkaido Branch Manager Shingo Shibeki | 泽村宗之助
 | |
| Tajima Member of Osaka Defense Corps | 土屋嘉男
 | |
| Radio Operator Yasuko Inouye | Mayuri Mokusho | |
| Chief of Civil Defense | 山田巳之助
 | |
| Koehi Wamaji President of the Fishery | 笠间雪雄
 | |
| Small Escaped Convict | 大村千吉
 | |
| Commander of Landing Craft | 山本廉
 | |
| Convict Leader | 大友伸
 | |
| Osaka Municipal Police Commissioner | 笈川武夫
 | |
| Convict | 广濑正一
 | |
| Escaped Convict | 夏木顺平
 | |
| Angirasu | 手塚胜巳
 | |
| Gojira | 中岛春雄
 | |
| Narrator American Version | Marvin Miller | |
| English dubbing voice: U.S. version (uncredited) | Paul Frees | |
| English dubbing voice for Hiroshi Koizumi (uncredited) | 陆锡麒 | |
