
Quick answer — Michiru Yuimoto voices Jun Watarase in Happiness!, Kaede Makidera in Fate/stay night: Unlimited Blade Works, Yuiko Amaha in Mashiroiro Symphony and 1 more characters.
Michiru Yuimoto voices Jun Watarase (Happiness!), Kaede Makidera (Fate/stay night: Unlimited Blade Works), Yuiko Amaha (Mashiroiro Symphony), Patty Baldwin (The Sacred Blacksmith).
Jun Watarase is voiced in Japanese by Michiru Yuimoto.