Keiko has done the following roles in anime.

Ashita he no Free Kick	Nishi Sumie
Aura Battler Dunbine	Silky Mau
Blue Seed {Episode 16}	Wakama
City Hunter	Kumi
Dokaben	Asahina Kyoko
Doraemon {1979-2005.03}	Dorami
Dragonball Z	Annin
Esper Mami [1987-1989]	Mami
Galvion	Rei
Ideon	Rin
Justy	Jeruna
Karuizawa Syndrome [1986]	Midori
Lady Lady	Misuzu
Laputa	Sheeta
Legend of Lemnear	Rian
Obake no Q-tarou	0-jirou
Pat Labor	Kumagami Takeo
Paul's Miracle Operation [debut]	Miina
Plastic Little	May
Pumpkin Wine [1982-1984]	Asaoka Natsumi
Spoon Obaasan	Little Bon
Three Musketeers -The Adventure of Aramis	Katherine
Tobe! Kurija no Peek	Maira
Urashiman	Sophia
Urusei Yatsura	Ten's mother