 Akira TakaradaHideto Ogata | Hideto Ogata |
 Momoko KôchiEmiko Yamane | Emiko Yamane |
 Akihiko HirataDaisuke Serizawa | Daisuke Serizawa |
 Takashi ShimuraKyohei Yamane | Kyohei Yamane |
 Fuyuki MurakamiProfessor Tanabe | Professor Tanabe |
 Sachio SakaiHagiwara | Hagiwara |
 Toranosuke OgawaPresident of Southern Seas Salvage | President of Southern Seas Salvage |
 Ren YamamotoMasaji Yamada | Masaji Yamada |
 Hiroshi HayashiChairman of Diet Committee | Chairman of Diet Committee |
 Seijirô OndaParliamentarian Oyama | Parliamentarian Oyama |
| TTakeo OikawaChief of Emergency Headquarters | Chief of Emergency Headquarters |
 Keiji SakakidaMayor Inada | Mayor Inada |
| TToyoaki SuzukiShinkichi Yamada | Shinkichi Yamada |
 Kokuten KōdōElder of Odo Island | Elder of Odo Island |
 Kin SugaiMrs. Ozawa | Mrs. Ozawa |
 Tamae KawaiOdo Islander | Odo Islander |
| SShizuko AzumaWoman on Pleasure Boat / Woman on Train | Woman on Pleasure Boat / Woman on Train |
 Tsuruko ManoKuni Yamada | Kuni Yamada |
 Tadashi OkabeProfessor Tanabe's Assistant | Professor Tanabe's Assistant |
| KKiyoshi KamataMan on Pleasure Boat / Man on Train | Man on Pleasure Boat / Man on Train |
| RRen ImaizumiCoast Guard Officer | Coast Guard Officer |
| MMasaaki TachibanaReporter on TV Tower | Reporter on TV Tower |
| IIchirō TateTV Commentator | TV Commentator |
 Yasuhisa TsutsumiOdo Islander | Odo Islander |
| JJirô SuzukawaOdo Islander | Odo Islander |
| SSaburô IketaniNews Reporter on Shikine | News Reporter on Shikine |
 Katsumi TezukaGodzilla / Newspaper Desk Worker | Godzilla / Newspaper Desk Worker |
 Haruo NakajimaGodzilla / News Reporter / Substation Worker | Godzilla / News Reporter / Substation Worker |
| KKenzo EchigoSailor Playing Harmonica on Eiko Maru (uncredited) | Sailor Playing Harmonica on Eiko Maru (uncredited) |
| MMasayoshi KawabeSailor on Eiko Maru (uncredited) | Sailor on Eiko Maru (uncredited) |
