Hisoka (ヒソカ, Hisoka) is a character from the series Hunter × Hunter by Yoshihiro Togashi. He is also one of the main antagonists. Hisoka is portrayed as entirely self-interested and does whatever he likes as long as it pleases him in some way. He lusts for the thrill of killing powerful fighters in combat and it is strongly implied that he receives sexual gratification from doing so. In order for them to grow to their full potential (so as to improve the pleasure of killing them later), Hisoka allows the main protagonists of Hunter × Hunter to live during situations wherein he is easily able to kill them. Likewise, he grows excited to meet any new characters he deems worthy of fighting or anyone with potential to be a good fighter and entertain him in the future. Hisoka is or at the least can be sociopathic. While he does like gon and killua as well as others he has stated that for him valuable one day could mean trash the next and could kill anyone with little to no reservation. He is completely self-centered and manipulative with all of these traits being indicative of sociopathy. He does not care for what has happened in the past as he is only interested in what could be amusing to him in the future or present. While Hisoka's nature tends to be malevolent, he isn't an indiscriminate killer. While he has no problems killing anyone regardless of age or sex, he only kills people who are in his way or people he deems "worthy". As such his character is more simply amoral than flat out evil. He will even assist the protagonists if there is "fun" in doing so or if it will make them stronger for a more entertaining fight in the future. Above all else Hisoka cares only about having fun and a good challenge which may or may not (but mostly may) involve killing people.
Hisoka often exhibits androgynous aspects of his personality throughout the series, manifested in his wearing of women's shoes and using an alluring speech style typically reserved for females in Japanese. In the manga, he ends nearly every sentence with a suit symbol.
Ty Kallen! Yea well we know he is blood thirsty, just hard to pinpoint when he will make his move on whoever he finds worth killing..i think we need a side story of his everyday life to get a more grasp on who he is mentally.