- Akira Takarada
- Hideto Ogata
- Momoko Kôchi
- Emiko Yamane
- Akihiko Hirata
- Dr. Daisuke Serizawa
- Takashi Shimura
- Dr. Kyohei Yamane
- Fuyuki Murakami
- Professor Tanabe
- Sachio Sakai
- Newspaper Reporter Hagiwara
- Toranosuke Ogawa
- Nankai Ferry President
- Ren Yamamoto
- Masaji Yamada
- Hiroshi Hayashi
- Chairman of Diet Committee
- Seijirô Onda
- Parliamentarian Oyama
- Tsuruko Mano
- Kuni Yamada
- Takeo Oikawa
- Chief of Emergency Headquarters
- Toyoaki Suzuki
- Shinkichi Yamada
- Kokuten Kôdô
- The Old Fisherman
- Tadashi Okabe
- Prof. Tanabe's Assistant
- Kin Sugai
- Parliamentarian Ozawa
- Ren Imaizumi
- Radio Operator
- Junpei Natsuki
- Power Substation Engineer
- Katsumi Tezuka
- Gojira / Hagiwara's Editor
- Haruo Nakajima
- Gojira / Power Station Worker
- Yasuhisa Tsutsumi
- Soldier
- Jiro Suzuki
- Gojira
- Saburô Iketani
- News Reporter
- Hiroshi Akitsu
- Oto Islander
- Shizuko Azuma
- Partygoer
- Yû Fujiki
- Eiko-Maru sailing vessel wireless communications officer
- Shizuko Higashi
- Angry Woman at Diet
- Kazuo Hinata
- Countermeasures Headquarters Member
- Ishirô Honda
- Power Station Worker (The Hand that Throws the Switch)
- Kiyoshi Kamata
- Partygoer's Escort
- Keiichirô Katsumoto
- Member of Parliament
- Shigeo Katô
- JSDF with spotlight , leader of crowd escaping
- Akio Kusama
- Otoshima Islander
- Teruko Mita
- Activist
- Kenji Sahara
- Young Lover on the sound
- Keiji Sakakida
- Otoshima Village Mayor Inada
- Tamae Sengo
- Mother
- Junnosuke Suda
- Tokaido Line Driver
- Masaaki Tachibana
- Tokyo TV Tower News Reporter
- Ryosaku Takasugi
- Gojira
- Kamayuki Tsubono
- Japan Coast Guard Officer / Shikine Newspaper Reporter (uncredited)
- Mitsuo Tsuda
- Police Captain / Coast Guard Officer (uncredited)
