
Quick answer — Kumiko Watanabe voices Shippo in InuYasha, Keroro in Sgt. Frog, Kyouko Shirafuji in Wagnaria!! and 18 more characters.
Kumiko Watanabe voices Shippo (InuYasha), Keroro (Sgt. Frog), Kyouko Shirafuji (Wagnaria!!), Tomoki Himi (Digimon Frontier), Katejina Loos (Mobile Suit Victory Gundam), Gumdramon (Digimon Xros Wars: The Young Hunters Who Leapt Through Time), C-ko (Revolutionary Girl Utena), Claire Rondo (Planetes) and 13 more.
Shippo is voiced in Japanese by Kumiko Watanabe.