Quick answer — Ai Uchikawa voices Elenore Baker in Madlax, Kaburu-kun in Hamtaro, Kana Iwata in Hamtaro.
Ai Uchikawa voices Elenore Baker (Madlax), Kaburu-kun (Hamtaro), Kana Iwata (Hamtaro).
Elenore Baker is voiced in Japanese by Ai Uchikawa.