Quick answer — Hayato Nakata voices Hasegawa in Shiki Specials, Ishida in Shiki, Mikiyasu Yasumori in Shiki and 1 more characters.
Hayato Nakata voices Hasegawa (Shiki Specials), Ishida (Shiki), Mikiyasu Yasumori (Shiki), Tatsuo Ishigami (Giant Killing).
Hasegawa is voiced in Japanese by Hayato Nakata.
