List of Japanese political figures in early Shōwa period

List of important political and civil figures during World War II:
 * Emperor Hirohito: Emperor of Japan
 * Osachi Hamaguchi: Prime Minister
 * Tomeo Sagoya: the assassin of Prime Minister Osachi Hamaguchi. He was a member of Aikokusha (Love of Country Association)
 * Wakatsuki Reijirō: Prime Minister
 * Hara Takashi: Commoner and liberal thinker of the Seiyukai party, came to be Prime Minister
 * Kaku Mori: a Parliamentary Vice-Minister of Foreign Affairs
 * Yōsuke Matsuoka: Foreign Affairs Minister
 * Fumimaro Konoe: Prime Minister, founder of Dobunkai Secret society
 * Naotake Satō: himself realizing official duties, Manchukuo and China, some ambassador in Italy and last Ambassador in Soviet Union
 * Kanji Kato: an important functionary in the Foreign affairs ministry
 * Gotō Shinpei: ex-governor of Taiwan and important supporter of Manchukuo actions
 * Noburo Ohtani: president of N.Y.K. Line
 * Kishi Shinsuke: a nationalist, industrialist and merchant
 * Yakichiro Suma: Spokesman of Foreign Affairs Ministry
 * Nobofumi Ito: Chief of Information department
 * Koh Ishii: Spokesman of Information department
 * Saitō Takao: Member of Diet, opposed to official policy
 * Baron Takumo Dan: Chief of Mitsui Banking interest and United States friend
 * Kazuo Taoka: nationalist and head of the Yamaguchi-gumi, the largest yakuza syndicate.
 * Kenji Osano: Ultranationalist politician and kuromaku.
 * Kōki Hirota: member of Genyosha and Black Dragon secret societies, also Foreign Minister, Prime Minister
 * Kaoru Ogawa: another member of nationalist societies and right wing believer associated with organized crime
 * Ryōhei Uchida: Ultranationalist, founder of Genyosha (Dark Ocean, also Black Ocean) secret society; too right-wing adviser and president of Dai Nippon Seisanto (Japan Production Party) nationalist party.
 * Kuzuo Yoshihisa: Right-wing supporter, successor of Ryohei Uchida in leading of Black Dragon Society in 1937.
 * Kotaro Hiraoka: another ultranationalist, also a Samurai. Another founder of the Genyosha Secret society.
 * Mitsuro Toyama: chief of Black Dragon Society, also founder of Kenkokukai and Roninkai secret groups.
 * Kosaburo Tachibana: right-wing follower, founder of Aikyojuku (Native-Land-Loving School) Secret society
 * Kakuei Tanaka: Ultranationalist. Former Japanese Prime Minister
 * Hisayuki Machii: Ethnic Korean and boss of Toa-kai
 * Kakuji Inagawa: another right-wing follower and boss of Inagawa-kai yakuza syndicate.
 * Fumio Gotō: chief of Showa Studies Society
 * Dr. Shūmei Ōkawa: nationalist ideologist and instructor in Showa Studies Society
 * Count Yoriyasu Arima: another "professor" in Showa Studies Society
 * Fusanosuke Kuhara: ex-syndicalist, ideologist and right-wing spokesman
 * Komakichi Matsuoka: syndicalist and leader of the Worker Federation of Japan industrial Syndicate during the 1940s
 * Naoki Hoshino: right-wing and Army civil follower Ideologist
 * Ichizō Kobayashi: President of Tokio Gasu Denky (Electric light and Gas Company of Tokyo) and Minister of Commerce and Industry
 * Shōzō Murata: president of Osaka Shosen Kaisha, Minister of Communications
 * Prince Saionji Kinmochi: last survivor of ancient Genro group, related with Sumitomo Zaibatsu Clan
 * Akira Kazami: Ministry of Justice
 * Baron Hiranuma Kiichirō: Radical thinker, Home Minister
 * Masatsune Ogura: Director of Sumitomo Empress and Finance Minister
 * Chikao Fujisawa: member of Diet, supporte of State Shinto laws
 * Prince Kan'in Kotohito, supporter of State
 * Katsuko Tojo: Tojo's wife and supporter of the implementation of eugenics policies in Japan
 * Yoshisuke Aikawa: Industrialist of Nissan Company, also Chief of Manchukuo Industrial Zaibatsu along Japanese Army Establishment
 * Toshio Shiratori: radical follower of the Axis Powers alliance, first adviser of the Foreign Affairs ministry and ambassador in Italy
 * Count Kabayama: moderate and Capitalist diplomat, also United States friend
 * Renzo Sawada: ex-ambassador in France
 * Juji Kasai: Representative Chamber Member, another Pro-American
 * Kensuke Horinouchi: Ambassador in the United States for a short time
 * Marquis Okuma: ex-Prime Minister
 * Fuji Fujuzawa: Industrialist and foreign merchant in Scrap iron and nationalist government supporter
 * Saburō Kurusu: new special ambassador in the United States
 * Kaname Wakasugi: aide of Special Ambassador
 * Yoshio Kodama: ultranationalist thinker and political personality related with Yakuza groups
 * Ryoichi Sasakawa: a right-wing follower and ideology also linked with criminal societies
 * Okinori Kaya: nationalist and merchant related with some Yakuza groups

Military figures in politics

 * General Kazushige Ugaki: Prime Minister
 * General Tanaka Giichi: Prime Minister
 * General Hideki Tōjō: Prime Minister, War Minister and Home Minister
 * General Sadao Araki: Radical ideologist, founder of Kodoha Party and Minister of Education
 * Admiral Makoto Saito: Prime Minister
 * Colonel Kingoro Hashimoto: Leader of Imperial Young Federation, Imperial Aid Association and Imperial Farmers Association
 * Admiral Mitsumasa Yonai: Prime Minister
 * General Nobuyuki Abe: Foreign Affairs Minister
 * Lieutenant General Heisuke Yanagawa: Ministry of Justice and leader of the Imperial Aid Association
 * Admiral Teijirō Toyoda: Commerce & Industry and Foreign Affairs Minister
 * Lieutenant General Seizo Sakonji: Commerce & Industry Minister
 * General Kuniaki Koizo: Prime Minister and partidaire of State Shintoism policy
 * Admiral Kichisaburō Nomura: military policy, proposed how special ambassador in agreements with the United States
 * General Hachirō Arita: ex-Foreign Affairs Minister and military thinker
 * Colonel Hideo Iwakuro: member of Army Staaff, right-winger, and diplomatic Army supporter