Clint Eastwood, who I love and respect as an actor, served as the model for Jotaro. Jotaro's trademark pose where he points his finger actually was inspired by Eastwood pointing his .44 Magnum. Even details such as Jotaro's catchphrase being "good grief" take inspiration from parts that Eastwood played, where he'd have lines like "A bank robbery? You have to be kidding me…" That's why Jotaro seems a bit "rougher" compared to other Jump protagonists. Joseph might be a little easier to get into from a Weekly Shonen Jump perspective, but Jotaro actually fits my image of a hero to a tee.
My image of a hero is that of a loner. As opposed to someone who does the right thing looking for compensation or attention from others, my idea of a hero is someone who is an unappreciated symbol of justice. There are times where taking the correct path leads to loneliness. I also think that heroes shouldn't be in the business of making friends. Jotaro goes on his journey while keeping his feelings bottled up inside because he's a "lone hero." He doesn't celebrate in an over-the-top manner when he defeats an enemy. For him, a throwaway "good grief" is plenty.
Jotaro has become big enough to function as a synonym for JoJo as a whole. I've actually based subsequent JoJos on his visual design and differentiated them from there. My original vision for Jotaro was having him journeying through the desert while wearing his school uniform, and with that, fantastical and bizarre things would happen to him during his day-to-day life. On top of that, it's not your everyday uniform. He's got a chain hooked on to his collar, two belts… I played around with his design quite a bit until I got something that conveyed just the right amount of rebellion. Speaking of teenage rebels, you know how guys used to have chains hanging from their pants, connected to their wallets? I drew Jotaro with his chain on his uniform first (laughs)! Let's add that to the record as well.
Q. What is the meaning of Star Platinum's pose?
A. It represents the starting point for Part 3--the work of Mitsuteru Yokoyama. The concept of wearing one's school uniform in the desert has its roots in Yokoyama Sensei's Babel II. If were to draw Part 3 all over again, I would have used Yokoyama Sensei's Tetsujin 28-go as inspiration for the Stands, representing a return to the basics.