
Quick answer — Yoshihisa Hosokawa voices Tatsuo Kobayakawa in Summer Time Rendering, Yuukaku Kuruoka in Fate/strange Fake -Whispers of Dawn-.
Yoshihisa Hosokawa voices Tatsuo Kobayakawa (Summer Time Rendering), Yuukaku Kuruoka (Fate/strange Fake -Whispers of Dawn-).
Tatsuo Kobayakawa is voiced in Japanese by Yoshihisa Hosokawa.