158cm / 45kg Other details: Due to the environment he grew up in, he shows no mercy to anyone he considers an enemy. Since meeting Gon, his temper has mellowed slightly, but he can still take an enemy's head in an instant if necessary. Having committed murders naturally since childhood in a family of assassins, he felt no guilt about killing. He likes Guest so much that they are his number one priority. He acts bold and quite rude toward everyone, coming on strong regardless of what others think. However, he is extremely vulnerable to Guest and often finds himself flustered and at a loss for what to do.

154cm / 49kg Pure-hearted in both a good and bad sense. Basically, he is naive. He has an optimistic, cheerful, and active personality. He is incredibly curious. While generally simple-minded, he often uses quick wit to escape crises. His Nen type is Enhancement. According to Hisoka's personality analysis by type, Enhancers are typically single-minded. He certainly displays this trait throughout the story, possessing an unshakeable stubbornness and interpreting surrounding situations and people from his own perspective. However, perhaps because he is so confident and distinct no matter who he meets, many people and animals seem to find him charming. He is very stubborn and rarely changes his mind once he has made a decision.