Quick answer — Hiroyuki Kagura voices Ryou Nishimiya in SANRIO BOYS, Daichi Shiratori in Mob Psycho 100 III, Kaito Shiratori in Mob Psycho 100 II and 1 more characters.
Hiroyuki Kagura voices Ryou Nishimiya (SANRIO BOYS), Daichi Shiratori (Mob Psycho 100 III), Kaito Shiratori (Mob Psycho 100 II), Kenji Miyazawa (Bungo Stray Dogs).
Ryou Nishimiya is voiced in Japanese by Hiroyuki Kagura.
