Quick answer — Akio Katou voices Furcas Rachmaninoff in Beelzebub, Teng in Kingdom, Master in Princess Resurrection and 1 more characters.
Akio Katou voices Furcas Rachmaninoff (Beelzebub), Teng (Kingdom), Master (Princess Resurrection), Ryu Ryu (Princess Resurrection).
Furcas Rachmaninoff is voiced in Japanese by Akio Katou.
