Hisoka Morow
Hunter Hisoka Morow was formerly #4 in the Phantom Troupe and had the third-best physical strength in the group. He is constantly looking for formidable opponents, sparing those with a lot of promise like Gon and Killua until they are strong enough to truly take him on. Prior to appearing as a supporting character in the Yorknew City and Greed Island arcs, he was the main adversary of the Hunter Exam and Heavens Arena arcs.
According to how he is portrayed, Hisoka is purely self-serving and self-absorbed; he does whatever makes him feel good. His apparent sadomasochistic tendencies are fueled by his insatiable love of shedding the blood of strong combatants during battle and his enjoyment of experiencing excruciating pain while doing so. Hisoka's barely controllable violent tendencies have revealed a macabre drive to battle strong fighters, or those with Nen who have the potential to grow strong; his desire to fight them appears to be unaffected by age or gender.
The most eerie character in "Hunter X Hunter" may be Hisoka Morow. Even though he's a weirdo who enjoys playing with kids, he's a really fascinating guy. Fans are curious about his background because he has frequently aided Gon and his buddies in the past. They are curious about how he came to be who he is now and about his quest to learn Nen in the first place. He now qualifies as one of the anime characters who deserve their own show.
Anime: Hunter X Hunter