
Quick answer — Eiji Takeuchi voices Gallus Cleaner in Mushoku Tensei: Jobless Reincarnation Cour 2, Ichirou Sakai in Ace of the Diamond act II, Takahashi in ERASED and 10 more characters.
Eiji Takeuchi voices Gallus Cleaner (Mushoku Tensei: Jobless Reincarnation Cour 2), Ichirou Sakai (Ace of the Diamond act II), Takahashi (ERASED), Kazuyoshi Oota (Ace of the Diamond), Ken Sudou (Classroom of the Elite 4th Season: Second Year, First Semester), Sumio (YATAGARASU: The Raven Does Not Choose Its Master), Nobutaka Osanai (Tokyo Revengers), Kawachi (The Devil is a Part-Timer!) and 5 more.
Gallus Cleaner is voiced in Japanese by Eiji Takeuchi.