
Quick answer — Mari Mashiba voices Shiro in Shin Chan, Tooru Kazama in Shin Chan, Cima Garahau in Mobile Suit Gundam 0083: Stardust Memory.
Mari Mashiba voices Shiro (Shin Chan), Tooru Kazama (Shin Chan), Cima Garahau (Mobile Suit Gundam 0083: Stardust Memory).
Shiro is voiced in Japanese by Mari Mashiba.