Zeno Zoldyck (ゼノ＝ゾルディック, Zeno Zorudikku) is Killua's grandfather and Silva's father. While Zeno is a witty old man, his advancing age has not dampened his quick thinking and speed in battle. Despite his senior citizen status, he is a very formidable tactician and a skilled user of Nen. These wallpapers HD quality so please be downloaded by clicking right on the image above and select save image as.