Quick answer — Kurumi Mamiya voices Takopi in Takopi's Original Sin, Keiichirou Miyanoshita in Ghost Stories, Hamtarou in Hamtaro and 11 more characters.
Kurumi Mamiya voices Takopi (Takopi's Original Sin), Keiichirou Miyanoshita (Ghost Stories), Hamtarou (Hamtaro), Zorua (Pokémon: Zoroark—Master of Illusions), Kirimi Nekozawa (Ouran High School Host Club), Azelma Thenardier (Les Misérables: Shoujo Cosette), Ichigin-san (Humanity Has Declined), Usagi-chan (Akudama Drive) and 6 more.
Takopi is voiced in Japanese by Kurumi Mamiya.
