Hisoka Morow

He has yellow eyes and magenta/ neon pink hair. Hisoka's appearance is similar to that of a magician or jester. He is tall and has light skin and a very muscular physique. His attire is usually adorned with various suit symbols (♦/♦ ♣/♣ ♥/♥ ♠/♠) on the front and back torso, and he changes outfits in each story arc. He wears face paint of a star (★) on his right cheek and a teardrop (💧) on his left cheek, and like his attire, in the 2011 anime, his face paint also occasionally changes colors. During the Greed Island arc, Hisoka wears the Greed Island Ring on his left middle finger. And in the 13th Hunter Chairman Election arc, Hisoka wears a pair of earrings with ornamental hearts. For unknown reasons, Hisoka has long, pointed nails, giving his hands a claw-like appearance, hinting at his sinister nature.

His spider tattoo was located on the middle of his back, with the number 4 on the spider's abdomen, but the tattoo was fake.[7]

During his time in the Black Whale, he lets his hair down and wears a grey sleeveless vest with black areas on his shoulders over a white shirt along with black pants.

Hisoka is portrayed as entirely self-serving and self-absorbed; he does whatever he likes as long as it pleases him in some way. His insatiable love for spilling the blood of powerful fighters in combat and his enjoyment of extreme pain while doing so fuels his seemingly sadomasochistic desires. 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 to live in situations wherein he is easily able to kill them. Likewise, he grows excited to meet new people he deems worthy of fighting or anyone with the potential to be a good fighter and entertain him in the future. The thrill of fighting strong Nen users in tactical battles and near-death experiences is an orgasmic experience for him. It is likely one of the reasons why he goes out of his way to find new toys to play with. If they break, he either loses interest or kills them before going out to find more potential prey.

Hisoka has displayed a morbid attraction to fight powerful fighters, or people with Nen who have the potential to become strong, which is expressed through barely repressible murderous tendencies; neither age nor gender do seem to influence his desire to fight them. He has expressed a desire to fight or kill random victims just to satiate his bloodlust. After his defeat at the hands of Chrollo, Hisoka's sociopathic nature has taken itself to worse heights by vowing to kill all the members of the Phantom Troupe even if they were defenseless and claiming he will no longer let his opponents fight in their preferred conditions. However, he did temporarily spare Machi, who has been an implied interest of Hisoka's as a potential opponent he likes to flirt with or as a romantic interest, although he stated it was so she could warn the Troupe of his intentions.

Hisoka often exhibits androgynous characteristics 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.

Despite his calm and composed personality, he can express his emotion comically in some situations. An example is when Gon becomes honest and rather innocent about his question of why Hisoka was in Greed Island. Another example is his stunned face when he learns he could not fight Chrollo after Kurapika's Judgment Chain.

Hisoka speaks little of his past because he is uninterested in it.[7] It is revealed, however, that Hisoka joined the Phantom Troupe under false pretenses at some point after the Kurta massacre, and about two years before the events in Yorknew City, after replacing the previous #4.[8] Around the same time, he "initiated" Kastro to Nen at the Heavens Arena, sensing potential in him.[9] He then took part in the 286th Hunter Exam, during which he murdered 20 examinees. He was disqualified for almost killing an examiner during his first attempt.[1] During his time in the Phantom Troupe, Hisoka may have shirked his duty of attending their meetings, as Machi made sure to let him know that attendance at the upcoming one in Yorknew City was mandatory for all members (not just those with nothing better to do) and the leader might personally come after him for skipping out,[7] and Franklin later asked her if she was sure Hisoka would be present, which she was not.[10]

It is said that he named both of his techniques after a candy brand and a chewing gum brand he liked when he was a kid,[7] implying that they may have been named "Texture Surprise" and "Bungee Gum" respectively.