Zeno Zoldyck

Zeno Zoldyck is Killua's grandfather and Silva's father in Hunter x Hunter (2011). Despite his age, he remains quick-thinking and extremely fast in battle, pairing experience with a witty personality.

Zeno is also on good terms with Hunter Committee Chairman Netero, who calls on him for major combat work. He is described as favoring Killua among his grandchildren.