
Quick answer — Minami Hamabe voices Ruri Ichigyou in HELLO WORLD, Sarah in Gold Kingdom and Water Kingdom, Ellie Ishioka in Detective Conan: The Scarlet Bullet and 1 more characters.
Minami Hamabe voices Ruri Ichigyou (HELLO WORLD), Sarah (Gold Kingdom and Water Kingdom), Ellie Ishioka (Detective Conan: The Scarlet Bullet), Olga Myskina (One Piece: Heart of Gold).
Ruri Ichigyou is voiced in Japanese by Minami Hamabe.