
Quick answer — Keiichiro Yamamoto voices Tajima in Clannad: After Story, Honki in One Piece: Mega Mecha Soldier of Karakuri Castle.
Keiichiro Yamamoto voices Tajima (Clannad: After Story), Honki (One Piece: Mega Mecha Soldier of Karakuri Castle).
Tajima is voiced in Japanese by Keiichiro Yamamoto.