Kazuyuki Sogabe (曽我部 和恭 (formerly 曽我部 和行) Sogabe Kazuyuki April 16, 1948 - September 17, 2006) was a veteran seiyū born in Chiba Prefecture. Sogabe retired from voice acting on December 31, 2000 when he felt a weakness in his own voice. After his retirement, many of his current roles went to voice actors Tetsu Inada and Ryotaro Okiayu. Kazuyuki, however, was active in 2005. Sogabe died on September 17th, 2006 at around 8 PM from esophageal cancer, with which he had been diagnosed two months before. He was 58 years old.

Source: Wikipedia