
Quick answer — Maya Okamoto voices Leina Ashta in Mobile Suit Gundam ZZ, Mo Furen in The Founder of Diabolism, Mary in Trigun and 9 more characters.
Maya Okamoto voices Leina Ashta (Mobile Suit Gundam ZZ), Mo Furen (The Founder of Diabolism), Mary (Trigun), Emma Sheen (Mobile Suit Zeta Gundam), Shiori Takamiya (Glass Mask (2005)), Nana Osanai (Detective Conan: The Fourteenth Target), Yuuko Azuki (City Hunter), Harumi Nakagawa (The Irresponsible Captain Tylor) and 4 more.
Leina Ashta is voiced in Japanese by Maya Okamoto.