
Quick answer — Yukiko Monden voices Sayaka in K-ON!: Live House!, Janis Karinato in Cat Planet Cuties, Ramsus in World War Blue.
Yukiko Monden voices Sayaka (K-ON!: Live House!), Janis Karinato (Cat Planet Cuties), Ramsus (World War Blue).
Sayaka is voiced in Japanese by Yukiko Monden.