Kenji SaharaShigeru Kawamura Akihiko HirataProfessor Kyuichiro Kashiwagi Minosuke YamadaMining Chief Osaki Akio KoboriPolice Chief Nishimura Mitsuo TsudaStaff Officer Takeuchi Jun'ichirō MukaiMilitary officer Ichirō ChibaChief of Police Kiyoshi TakagiDr. Minakami (uncredited) Fuyuki MurakamiProfessor Minami (uncredited) Mitsuo MatsumotoProfessor Isokawa (uncredited) Takuzô KumagayaPoliceman Tashiro (uncredited) Yasuhisa TsutsumiImamura, F-86F pilot (uncredited) Yutaka OkaKitahara, F-86F pilot (uncredited) Shigemi SunagawaF-86F pilot (uncredited) Katsumi TezukaRodan / Meganulon / Hotel Manager Haruo NakajimaRodan / Meganulon Shōichi HiroseMeganulon / Fighter pilot Saburô KadowakiSunagawa's colleague (uncredited) Yasuko NakadaFemale Honeymooner (uncredited) Junnosuke SudaCoroner (uncredited) Toshiko NakanoKiyo's neighbor (uncredited) Saburô IketaniNews Reader (uncredited) Saeko KuroiwaNurse (uncredited) Bontarō TairaLaborer (uncredited) Keiichirō KatsumotoCoal mine employee (uncredited) Kamayuki TsubonoPoliceman at crime laboratory (uncredited) Mike DaneenOkinawan correspondent (uncredited) Masaaki TachibanaPoliceman (uncredited) Tadashi OkabeJournalist (uncredited) Kôji UnoReporter (uncredited) Akira YamadaRadio operator on jeep (uncredited) Ren YamamotoSoldier in jeep (uncredited) Tokio ÔkawaMeganulon (uncredited) Seiji OnakaNakagawa, male honeymooner Tatsuo KitaProduction Design Isamu AshidaDirector Of Photography Eizo KaimaiCostume Design / Modeling Teizô ToshimitsuCostume Design / Modeling Jun FukudaFirst Assistant Director Masanobu MiyazakiSound Recordist Ichirô MinawaSound Effects Akira IfukubeHudební skladatel Eiji TsuburayaVisual Effects Sadamasa ArikawaVfx Director Of Photography Sadao IizukaVisual Effects Masakatsu AsaiVisual Effects Director Yasuaki SakamotoVisual Effects Production Manager Shuzaburo ArakiVisual Effects