
Quick answer — Noriko Ohara voices Conan in Future Boy Conan, Nobita Nobi in Doraemon, Miime in Captain Harlock Space Pirate and 4 more characters.
Noriko Ohara voices Conan (Future Boy Conan), Nobita Nobi (Doraemon), Miime (Captain Harlock Space Pirate), Mattia (Nobody's Boy Remi), Claudia LaSalle (Macross), Mud Maetel (Galaxy Express 999), Peter (Heidi, Girl of the Alps).
Conan is voiced in Japanese by Noriko Ohara.