In the series JoJo's Bizarre Adventure, which main character makes the greatest number of recurring appearances?

The main character Jotaro Kujo makes the greatest number of recurring appearances in the series JoJo's Bizarre Adventure because he not only appears as the protagonist in the third part, Stardust Crusaders, but also reappears as a major character in subsequent parts, such as Diamond is Unbreakable and Stone Ocean. Jotaro's consistent presence throughout multiple story arcs and his significant role in the overarching plot make him the character with the most recurring appearances in the series.