Who is Tiger Tanaka from You Only Live Twice and what is their importance?

Tiger Tanaka is the head of the Japanese Secret Service, Tiger studied at Oxford and returned to England to spy for Japan prior to the World War II. He joined up with the Kempeitai, which was their wartime Gestapo, and was trained as a Kami-Kaze. Tanaka is very loyal to his country and opposes the occupation of the West and its culture in Japan. Tanaka is also portrayed as a ladies man who, as Dikko puts it, enjoys samsara or wine and women. He has been married three times and paying, as Dikko refers to it, cock-tax or alimony to all three of them.