Masako has done the following roles in anime.

Araiguma Rascal	Rascal
Babel II [1973]	?
Blue Blink	Blue Blink
Chibineko Tom no daibouken -Chikyuu wo sukue! Nakamatachi [2014]	Mark
Combattler V	Orleana
Cross Game [2009]	Nomo
Dash! Shikurou	Shikurou
Digimon Tamers	Guilmon
Dokonjyou Gaeru	Hiroshi
Dororon Enma-kun [1973]	Enma-kun
Dragonball	Son Gokuu
Dragonball GT {Goku Gaiden!}	Goku Junior
Dragonball Kai [2009-2010]	Son Gokuu
Dragonball Kai [2009-2010]	Son Gohan
Dragonball Z	Son Gokuu
Dragonball Z	Son Gohan
Dragonball Z	Son Goten
Dragonball Z {Tatta Hitori no Saishuukessen}	Bardack
Dual! Parallel Trouble Adventure	Nanjoin Reika
Esteban (Mysterious Cities of Gold)	?
Futari ha Pre Cure	Yukishiro Sanae
Galaxy Express 999	Hoshino Tetsuro
Ganba's Adventure	Ganba
Ge Ge Ge no Kitarou	Kitarou
Ginga Hyouryuu VIFAM	Kent Norton
Ginga Hyuouryuu Vifam 13 [1998]	Kents Norton
Ginga Tetsudou Monogatari -Wasurerareta toki no Wakusei- [2007]	Tetsurou
Hakkenden OAV [1990-1991]	Kamezasa
Hey Bunbuu	Bunbuu
Iczer Girl Iczelion	Iczel
Iczer Girl Iczelion	Iczel Gold
Iczer Girl Iczelion	Iczel Black
Iczer Girl Iczelion	Iczel Silver
Kaibutsu-kun	Kaibutsu-kun
Kindaichi Shounen no Jikenbo	Gonda Tomoyo
King of Bandits Jing	Mama Stout
Kousetsu Hyaku Monogatari	White Hag
Kousetsu Hyaku Monogatari	Black Hag
Magical Sally [1966]	triplets
Majokko Megu-chan	Saturn
Masked Ninja Akakage	Aokage
Meitantei Conan (Detective Conan) {episode 219}	?
Mirumo de Pon [2002-2005]	Kinta
Musashi Road	Musashi
One Piece [1999-]	Dr. Kureba
Orokana Tenshi ha Akuma to Odoru [2024]	Joe
Oshare Majo Love and Berry: Shiawase no mahou [2007]	Isabela
Sore ga Seiyuu [2015]	Nozawa Masako
Tetsuwan Atom [1963] [debut]	?
Toriko [2011-2013] {Episode 99}	Son Goku
Tsubasa Chronicle [2005-2006]	mystic whale
Tsurikichi Sanpei	Sanpei