Quick answer — Madoka Shiga voices John Smith in Majestic Prince, Saul Ranashinha Ally in The Case Files of Jeweler Richard, Tsuyama in The Troubled Life of Miss Kotoura and 2 more characters.
Madoka Shiga voices John Smith (Majestic Prince), Saul Ranashinha Ally (The Case Files of Jeweler Richard), Tsuyama (The Troubled Life of Miss Kotoura), Jacques Schnee (RWBY: Ice Queendom), Ulga (High School Prodigies Have It Easy Even In Another World).
John Smith is voiced in Japanese by Madoka Shiga.
