From Wikipedia, the free encyclopedia. Kenji Sahara (  Sahara Kenji, born Tadashi Ishihara) (born May 14, 1932) is a Japanese actor. He was born in Kawasaki City, Kanagawa. His real name is Masayoshi Kato ( Katō Masayoshi). Initially he used the name Tadashi Ishihara before changing it when he secured the lead role in Rodan (1956).