
Quick answer — Yuka Maruyama voices Ren Tachibana in Free! -Iwatobi Swim Club-, Ritsuko Matsunaga in High School Fleet OVA, Aunt Zhao in Hitori no Shita - The Outcast.
Yuka Maruyama voices Ren Tachibana (Free! -Iwatobi Swim Club-), Ritsuko Matsunaga (High School Fleet OVA), Aunt Zhao (Hitori no Shita - The Outcast).
Ren Tachibana is voiced in Japanese by Yuka Maruyama.