
Hajime Koseki
小関 一
Koseki Hajime is a voice actor (seiyuu) from Yamagata prefecture. He diead on November 18, 2013.
(Source: AniDB)
(Source: AniDB)

Legend of the Galactic Heroes
TV, 2020
Chen
Supporting
Yu Yu Hakusho: Ghost Files
TV, 2020
Bakken
Supporting
Yu Yu Hakusho: Ghost Files
TV, 2020
Kirin
Supporting
Case Closed
TV, 2020
Manaka
Supporting
Golden Boy
OVA, 2020
Sagata
Supporting
Dirty Pair Flash
OVA, 2020
Chief Garner
Supporting