
Quick answer — Toshiko Fujita voices Alfredo Martini in Romeo's Blue Skies, Taichi Yagami in Digimon: Digital Monsters, Rui Kisugi in Cat's Eye and 17 more characters.
Toshiko Fujita voices Alfredo Martini (Romeo's Blue Skies), Taichi Yagami (Digimon: Digital Monsters), Rui Kisugi (Cat's Eye), Makie (Wicked City), Hisayo (Mononoke), Big Mama (One Outs), Taeko Miyauchi (Chihayafuru), Mio Tokiwa (Detective Conan: Countdown to Heaven) and 12 more.
Alfredo Martini is voiced in Japanese by Toshiko Fujita.