Hirohiko Araki’s creativity knows no bound with his distinctive character designs all across the board. Even so, during the initial making of Jojo’s Bizarre Adventure: Phantom Blood, it’s clear that Araki sought some inspiration at the start of the series.
Araki’s fascination with making characters with unnatural body types for their age was inspired by Sylvester Stallone and Arnold Schwarzenegger for being muscular back in their heyday. Fist of the north star was a popular shōnen jump series way back during the 1980s, and it is very clear Araki took inspiration from it.
Jonathan Joestar is the spitting image of Kenshiro from the buff body type, hairstyle, and downright to the very personality of the characters. Fans speculate Dio Brando was also an inspiration from Shin as a character from Fist of the north star.
- https://otakukart.com/071215/30-shocking-facts-about-jojos-bizarre-adventure/