
Quick answer — Asako Dodo voices Marianne vi Britannia in Code Geass: Lelouch of the Rebellion, Midori Kuriyama in Detective Conan: The Fourteenth Target, Mama in Yashahime: Princess Half-Demon and 2 more characters.
Asako Dodo voices Marianne vi Britannia (Code Geass: Lelouch of the Rebellion), Midori Kuriyama (Detective Conan: The Fourteenth Target), Mama (Yashahime: Princess Half-Demon), Teppei no Haha (Princess Lover!), Ema (Togainu no Chi).
Marianne vi Britannia is voiced in Japanese by Asako Dodo.