Masato Sako (佐古正人, Sako Masato, November 9, 1946 – January 11, 2003) was a Japanese actor and voice actor from Iwakuni, Yamaguchi. 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 . He has performed in Shakespeare, television dramas, dubs of western films and animation. His oldest daughter, Mayumi Sako, is enrolled in the . On January 11, 2003, Masato Sako died of oral cancer in an Iwakuni hospital at the age of 56.