
Quick answer — Kenji Fukuda voices Tetsuo Fujita in Welcome to the Ballroom, Alester in DRIFTERS, Kaname Izuma in Beelzebub and 2 more characters.
Kenji Fukuda voices Tetsuo Fujita (Welcome to the Ballroom), Alester (DRIFTERS), Kaname Izuma (Beelzebub), Seta (Goodbye, Lara), Ryou no Chichi (SANRIO BOYS).
Tetsuo Fujita is voiced in Japanese by Kenji Fukuda.