
Quick answer — Takeru Kikuchi voices Yuusuke Aoi in THE IDOLM@STER Side M, Hattori in Journal with Witch, Takahashi in A Couple of Cuckoos and 1 more characters.
Takeru Kikuchi voices Yuusuke Aoi (THE IDOLM@STER Side M), Hattori (Journal with Witch), Takahashi (A Couple of Cuckoos), Asa Minase (Futsal Boys!!!!!).
Yuusuke Aoi is voiced in Japanese by Takeru Kikuchi.