Find all the names for the characters then you will know them all! Some spoiler in it so be warned!

Josuke Higashikata	Jotaro Kujo
Okuyasu Nijimura	Yukako Kishida
Kouichi Hirose	Yanguu Shigekiyo
Rohan Kishibe	Mekitaka Hazekura
Toshikazu Hazamada	Yuuya Fungami
Kira Yoshikage