Shigeru Kawamura

Kiyo

Professor Kyuichiro Kashiwagi

Mining Chief Osaki

Izeki

Police Chief Nishimura

Staff Officer Takeuchi

Sunagawa

Military officer

Goro

Chief of Police

Haru

Tsunesan

Suteyan

Osumi

Yoshizo

Sabu

Tahei

Senkichi

Dr. Minakami (uncredited)

Professor Minami (uncredited)

Professor Isokawa (uncredited)

Policeman Tashiro (uncredited)

Imamura, F-86F pilot (uncredited)

Kitahara, F-86F pilot (uncredited)

F-86F pilot (uncredited)

Rodan / Meganulon / Hotel Manager

Rodan / Meganulon

Meganulon / Fighter pilot

Sunagawa's colleague (uncredited)

Male Honeymooner, Sunagawa's friend (uncredited)

Female Honeymooner (uncredited)

Coroner (uncredited)

Kiyo's neighbor (uncredited)

News Reader (uncredited)

Nurse (uncredited)

Laborer (uncredited)

Coal mine employee (uncredited)

Policeman at crime laboratory (uncredited)

Okinawan correspondent (uncredited)

Policeman (uncredited)

Journalist (uncredited)

Reporter (uncredited)

Radio operator on jeep (uncredited)

Soldier in jeep (uncredited)

Meganulon (uncredited)