Career
He stood at 168 centimeters (5 feet, 7 inches) tall and weighed in at 62 kilograms (136 pounds). Sako dropped out of Chuo University. He then enrolled in the theater company Gekidan Kumo.
He later transferred to Engekishūdan En.
He has performed in Shakespeare, television dramas, dubs of western films and animation. On January 11, 2003, Masato Sako died of oral cancer in an Iwakuni hospital at the age of 56.
After Sako"s death, the following actors were recruited to take over Sako"s ongoing roles. Shinji Ogawa (as Tōyama in Detective Conan) Fumihiko Tachiki (as Kyōgoku Ken in Batman: The Animated Series) = Animation.