
Quick answer — Moe Toyota voices Sapphire Kawashima in Sound! Euphonium, Chika Watanabe in The Many Sides of Voice Actor Radio, Fumi Kujou in JINSEI - Life Consulting and 9 more characters.
Moe Toyota voices Sapphire Kawashima (Sound! Euphonium), Chika Watanabe (The Many Sides of Voice Actor Radio), Fumi Kujou (JINSEI - Life Consulting), Fuyumi Fukagawa (Pan de Peace!), Kanon Matsubara (BanG Dream! 2nd Season), Sakura Inami (Beyond the Boundary), Korona Kashimaru (The Asterisk War 2), Misao Ushiku (TEPPEN!!!!!!!!!!!!!!! Laughing 'til You Cry) and 4 more.
Sapphire Kawashima is voiced in Japanese by Moe Toyota.