Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Wakako Matsumoto (Matsumoto Wakako) (April 1, 1961 -), better known as Kujira (Kujira), is a Japanese seiyū from the Tokyo Metropolis area. She is employed by 81 Produce. Veteran seiyū Shigeru Chiba, another member of 81 Produce, gave Kujira her nickname (meaning "whale"). Kujira's distinctive voice is described as hoarse and androgynous. Thus, many of her characters are middle-aged. Her best- known roles are Otose of Gin Tama and Orochimaru, an antagonist of Naruto.