Rodan
Mining engineer Shigeru investigates the disappearance and death of his fellow coworkers when prehistoric nymphs are discovered emerging from the mines. After an attack on the local village, Shigeru heads deeper into the mines only to make a more horrifying discovery in the form a prehistoric flying creature. Soon a second monster appears as the two converge in Fukuoka.
Kenji Sahara
Shigeru Kawamura
Yumi Shirakawa
Kiyo
Akihiko Hirata
Professor Kyuichiro Kashiwagi
Minosuke Yamada
Mining Chief Osaki
Yoshibumi Tajima
Izeki
Akio Kobori
Police Chief Nishimura
Mitsuo Tsuda
Staff Officer Takeuchi
Ren Imaizumi
Sunagawa
Jun'ichirō Mukai
Military officer
Rinsaku Ogata
Goro
Ichirō Chiba
Chief of Police
Tsurue Ichimanji
Haru
Tateo Kawasaki
Tsunesan
Kanta Kisaragi
Suteyan
Tsuruko Mano
Osumi
Jirô Suzukawa
Yoshizo
Yasuhiro Shigenobu
Sabu
Keiji Sakakida
Tahei
Ichirō Nakatani
Senkichi
Kiyoshi Takagi
Dr. Minakami (uncredited)
Fuyuki Murakami
Professor Minami (uncredited)
Mitsuo Matsumoto
Professor Isokawa (uncredited)
Takuzō Kumagai
Policeman Tashiro (uncredited)
Yasuhisa Tsutsumi
Imamura, F-86F pilot (uncredited)
Yutaka Oka
Kitahara, F-86F pilot (uncredited)
Shigemi Sunagawa
F-86F pilot (uncredited)
Katsumi Tezuka
Rodan / Meganulon / Hotel Manager
Haruo Nakajima
Rodan / Meganulon
Shōichi Hirose
Meganulon / Fighter pilot
Saburô Kadowaki
Sunagawa's colleague (uncredited)
Yasuko Nakada
Female Honeymooner (uncredited)
Junnosuke Suda
Coroner (uncredited)
Toshiko Nakano
Kiyo's neighbor (uncredited)
Saburô Iketani
News Reader (uncredited)
Saeko Kuroiwa
Nurse (uncredited)
Bontarō Taira
Laborer (uncredited)
Keiichirō Katsumoto
Coal mine employee (uncredited)
Kamayuki Tsubono
Policeman at crime laboratory (uncredited)
Mike Daneen
Okinawan correspondent (uncredited)
Masaaki Tachibana
Policeman (uncredited)
Tadashi Okabe
Journalist (uncredited)
Kôji Uno
Reporter (uncredited)
Akira Yamada
Radio operator on jeep (uncredited)
Ren Yamamoto
Soldier in jeep (uncredited)
Tokio Ôkawa
Meganulon (uncredited)
Seiji Onaka
Nakagawa, male honeymooner