
Quick answer — Akira Sasanuma voices Dearka Elsman in Mobile Suit Gundam Seed, Tamotsu Yamanishi in Looking Up at the Half-Moon, Julius in Rave Master and 3 more characters.
Akira Sasanuma voices Dearka Elsman (Mobile Suit Gundam Seed), Tamotsu Yamanishi (Looking Up at the Half-Moon), Julius (Rave Master), Christopher (Devil May Cry), Ryuuhou (DRAMAtical Murder), Jungei (HAIGAKURA).
Dearka Elsman is voiced in Japanese by Akira Sasanuma.