Quick answer — Misaki Kuno voices Frederica Rosenfort in 86 EIGHTY-SIX Part 2, Gawain Nanaumi in Rising Impact, Elfnein in Symphogear GX and 88 more characters.
Misaki Kuno voices Frederica Rosenfort (86 EIGHTY-SIX Part 2), Gawain Nanaumi (Rising Impact), Elfnein (Symphogear GX), Alicerette Draqul (The Ossan Newbie Adventurer, Trained to Death by the Most Powerful Party, Became Invincible), Hawk (The Seven Deadly Sins), Chiya (Night World), Nico Niiyama (Kiznaiver), Doux (The Demon King's Daughter is Too Kind!!) and 83 more.
Frederica Rosenfort is voiced in Japanese by Misaki Kuno.