Gennosuke Yumi (Mazinkaiser)

Animeography

	Mazinkaiser add Supporting
	Mazinger Z add Supporting
	Mazinkaiser: Shitou! Ankoku Dai Shogun add Supporting
	Grendizer: Getter Robo G - Great Mazinger Kessen! Daikaijuu add Supporting
	Shin Mazinger Shougeki! Z-hen add Supporting
	Mazinger Z Movie: Infinity add Supporting

Mangaography

	Z Mazinger add Supporting
	Mazinger Z add Main
	Mazin Saga add Supporting
	Super Robot Retsuden add Supporting

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Gennosuke Yumi (弓弦之助)

A former colleague of Kouji's grandfather Juzo, Professor Yumi is the current head of the Photon Power Research Laboratory. He is the father of Sayaka Yumi and also built her robot, Aphrodai A.

In Shin Mazinger Shougeki! Z-Hen, his name was changed to Yannosuke, despite all the previous Mazinger series referring to him at Gennosuke.

Voice Actors