Hiroki Hasegawa Rando Yaguchi : Deputy Chief Cabinet Secretary Yutaka Takenouchi Hideki Akasaka : Special Advisor to the Prime Minister Satomi Ishihara Kayoko Ann Patterson : US special envoy Kengo Kora Yusuke Shimura : Secretary of Rando Ren Osugi Seiji Ookouchi : Prime minister Akira Emoto Ryuta Azuma : Chief Cabinet Secretary Kimiko Yo Reiko Hanamori : Minister of Defense Jun Kunimura Masao Zaizen : JSDF Chief of Staff, Joint Staff Office Pierre Taki Saigo : Operation "TaBa" Combat leader Atsuko Maeda Evacuees Aqua Tunnel Kenichi Yajima Yanagihara : Minister of land, infrastructure and transportation Ken Mitsuishi Kozuka : Governor of Tokyo Kyūsaku Shimada Katayama : Minister for Foreign Affairs ad interim Kanji Tsuda Fumiya Mori : Ministry of Health, Labour and Welfare / Research and Development Division Director Shin'ya Tsukamoto Kunio Hazama : Jouhoku University Associate professor Tarō Suwa Tahara : Ministry of Internal Affairs and Communications / Disaster Management Division Kazuo Hara Biology Professor Isshin Inudo Ancient Biologist Takumi Saito 1st. tank squadron captain Shingo Tsurumi Yajima : JSDF Vice Chief of Staff, Joint Staff Office Suzuki Matsuo Hayafune : Free Journalist Akira Ogata Marine Biologist Hideaki Anno Bus Driver Kihachi Okamoto Dr. Goro Maki Mayumi Ogawa