
Quick answer — Yuka Ozaki voices Serval in Kemono Friends, Koito Koganei in Otaku Elf, Kohane Hatoya in Anima Yell! and 5 more characters.
Yuka Ozaki voices Serval (Kemono Friends), Koito Koganei (Otaku Elf), Kohane Hatoya (Anima Yell!), Kossetsu (Sonny Boy), Asuka Toyama (BanG Dream!), Seren Researcher 013 (Hina Logic - from Luck & Logic), Nerine Shirayuki (Momentary Lily), Aya Matsuoka (King's Game).
Serval is voiced in Japanese by Yuka Ozaki.