Taihei Hiraga is a Japanese zoologist and father of Taichi Hiraga-Keaton.  He was married to Patricia Keaton, an Englishwoman. After the couple separated, Taihei remained in Japan while Patricia returned to England with their then 5 year old son.

Taichi Keaton is a half-British half-Japanese archeologist and SAS veteran of the Falklands War. He solves mysteries and investigates insurance fraud for Lloyd's around the world.<br><br>
(Source: Anime News Network)

He was represented by Tokyo Actor's Consumer's Cooperative Society and after by Aoni Production.

He passed away on January 27, 2014 at the age of 82 due to ischemic heart disease or coronary artery disease.

[Profile](https://www.aoni.co.jp/search/nagai-ichiro.html)

Taichi Keaton is a man of many talents: father, historian, frequent traveler, negotiator, archaeologist, former survival instructor, and all while working as an insurance investigator for Lloyd's of London. While his methods may seem a bit unorthodox, he gets the job done when needed, but not without a little something to learn or teach in the process. Through all of his adventures, some people call him a quack. Those who know him well call him a master of life...  <br><br>
(Source: Anime News Network)