
Quick answer — Yuuki Yonai voices Producer in THE IDOLM@STER CINDERELLA GIRLS U149, Haruki Bandou in Cheer Boys!!, Takeo Mukaida in Rising Impact and 3 more characters.
Yuuki Yonai voices Producer (THE IDOLM@STER CINDERELLA GIRLS U149), Haruki Bandou (Cheer Boys!!), Takeo Mukaida (Rising Impact), Yorck (If It's for My Daughter, I'd Even Defeat a Demon Lord), Tarou Nekota (Rin-ne), Magnus (Monster Eater).
Producer is voiced in Japanese by Yuuki Yonai.