Milluki Zoldyck

Milluki Zoldyck (ミルキ＝ゾルディック Miruki Zorudikku) is Killua's second eldest brother and an obese figure who possesses a strong aversion to performing any kind of physical activity. In fact, prior to the Yorknew City auctions, Milluki had not left the mansion in eight years. He seems to be a sort of otaku, since his room is covered with female figurines from various anime and computer games . Milluki is talented in hacking computer systems, as Killua asked him to hack a memory card from Ging. He was also injured during Killua's escape. Milluki is primarily in charge of torturing Killua as punishment, but doesn't have the drive to carry it out very long as it is exhausting and extreme physical exertion is needed.

After being tipped off the whereabouts of Greed Island, Milluki's excitement resulted in one of the rarer moments in which he made an outside expedition in search of the game. However, he was unable to win a copy and left in frustration.