
Quick answer — Yuuki Fujiwara voices Belphegor in REBORN!, Anteater in Polar Bear's Café, Liang in NANBAKA and 7 more characters.
Yuuki Fujiwara voices Belphegor (REBORN!), Anteater (Polar Bear's Café), Liang (NANBAKA), Mutsuki Ashiya (Laughing Under the Clouds), Rakesh Chandrasekhara (Majestic Prince), Anonydeath (Hyperdimension Neptunia), Valery Vrubel (DOUBLE DECKER! DOUG & KIRILL), Masakatsu Yuuki (YU-NO: A Girl Who Chants Love at the Bound of This World) and 2 more.
Belphegor is voiced in Japanese by Yuuki Fujiwara.