(!) May contain headcanon!

Spoilers!!

Joseph Joestar (ジョセフ・ジョースター Josefu Jōsutā) is the protagonist of Battle Tendency and an ally in Stardust Crusaders and Diamond is Unbreakable. He is the second JoJo in the JoJo's Bizarre Adventure series. He is also the second most recurring JoJo in the series after his grandson Jotaro Kujo and is one of its most well-known characters.

Joseph is a natural Hamon user and eventual Stand user, wielding the psychic photographic Stand Hermit Purple. Joseph faces the fantastical threats that approach him throughout his life with impressive initiative and ingenuity, battling Vampires, the Pillar Men, and malevolent Stand users.

Source: https://jjba.fandom.com/en-us/wiki/Joseph_Joestar