Kenji Sahara
Shigeru Kawamura
Acting
Yumi Shirakawa
Kiyo
Acting
Akihiko Hirata
Professor Kyuichiro Kashiwagi
Acting
Minosuke Yamada
Mining Chief Osaki
Acting
Yoshibumi Tajima
Izeki
Acting
Akio Kobori
Police Chief Nishimura
Acting
Mitsuo Tsuda
Staff Officer Takeuchi
Acting
Ren Imaizumi
Sunagawa
Acting
Jun'ichirō Mukai
Military officer
Acting
Rinsaku Ogata
Goro
Acting
Ichirō Chiba
Chief of Police
Acting
Tsurue Ichimanji
Haru
Acting
Tateo Kawasaki
Tsunesan
Acting
Kanta Kisaragi
Suteyan
Acting
Tsuruko Mano
Osumi
Acting
Jirô Suzukawa
Yoshizo
Acting
Yasuhiro Shigenobu
Sabu
Acting
Keiji Sakakida
Tahei
Acting
Ichirō Nakatani
Senkichi
Acting
Kiyoshi Takagi
Dr. Minakami (uncredited)
Acting
Fuyuki Murakami
Professor Minami (uncredited)
Acting
Mitsuo Matsumoto
Professor Isokawa (uncredited)
Acting
Takuzō Kumagai
Policeman Tashiro (uncredited)
Acting
Yasuhisa Tsutsumi
Imamura, F-86F pilot (uncredited)
Acting
Yutaka Oka
Kitahara, F-86F pilot (uncredited)
Acting
Shigemi Sunagawa
F-86F pilot (uncredited)
Acting
Katsumi Tezuka
Rodan / Meganulon / Hotel Manager
Acting
Haruo Nakajima
Rodan / Meganulon
Acting
Shōichi Hirose
Meganulon / Fighter pilot
Acting
Saburô Kadowaki
Sunagawa's colleague (uncredited)
Acting
Yasuko Nakada
Female Honeymooner (uncredited)
Acting
Junnosuke Suda
Coroner (uncredited)
Acting
Toshiko Nakano
Kiyo's neighbor (uncredited)
Acting
Saburô Iketani
News Reader (uncredited)
Acting
Saeko Kuroiwa
Nurse (uncredited)
Acting
Bontarō Taira
Laborer (uncredited)
Acting
Keiichirō Katsumoto
Coal mine employee (uncredited)
Acting
Kamayuki Tsubono
Policeman at crime laboratory (uncredited)
Acting
Mike Daneen
Okinawan correspondent (uncredited)
Acting
Masaaki Tachibana
Policeman (uncredited)
Acting
Tadashi Okabe
Journalist (uncredited)
Acting
Kôji Uno
Reporter (uncredited)
Acting
Akira Yamada
Radio operator on jeep (uncredited)
Acting
Ren Yamamoto
Soldier in jeep (uncredited)
Acting
Tokio Ôkawa
Meganulon (uncredited)
Acting
Seiji Onaka
Nakagawa, male honeymooner
Acting