|Service/branch||Earth Defense Force|
|Rank||Lieutenant (junior grade)|
Kozo Nanbu (father)|
Tokiko Nanbu (mother)
Kazuo Hayashi (1978-1983)|
Toshirō Yashiba (2010)
Kenji Akabane (2011-)
- Lieutenant J.G. Yasuo Nanbu (南部康雄 Nanbu Yasuo ): bespectacled sub-chief of ship's defenses, operating the gun turrets in Kodai's absence. He is the heir to Nanbu Heavy Industries Corporation, which created Yamato's main artillery and the Cosmogun.
- He is the only Yamato crew member to not die in any version of the story.