
Quick answer — Kiyohito Yoshikai voices Ryousuke Todoroki in Kill la Kill, Tsutomu Iwamura in Kuroko's Basketball, Mizunuma in Brave Witches and 1 more characters.
Kiyohito Yoshikai voices Ryousuke Todoroki (Kill la Kill), Tsutomu Iwamura (Kuroko's Basketball), Mizunuma (Brave Witches), Guiping Li (The Silver Guardian).
Ryousuke Todoroki is voiced in Japanese by Kiyohito Yoshikai.