Persona Fandub 1-5
JasonVA141 for Persona 1 "Boy with Earring"
For the most part, the protagonist is silent, and his personality is controlled by the player, setting up a pattern the protagonists of later games would follow. However, the decisions that lead to the game's true ending and the gaining of the ultimate Personas paint the protagonist as a natural leader; a compassionate, perceptive, yet blunt person who is motivated to seek his personal reason for life and discourages hiding from the truth. He also shows a rather rude or informal and laidback side, his other self in Alaya Cavern telling Maki to shut up so he can concentrate on his game when she expresses her shock at seeing another version of the protagonist and referring to Igor as "old man Igor" after giving the protagonist the items to fuse the party's ultimate Personas.
In the manga, Naoya also inherited this same trait, though since he is mostly quiet and going along with everyone else, the rest of the party are surprised when he shows his hot-headed side while leading them. The manga version of the protagonist also suffers from survivor's guilt due to his twin brother Kazuya's death and as a consequence he has very low regard of his own well-being. This can be seen when Naoya blocks Reiji's attacks against Hariti by jumping in front of Reiji's attack and taking the hit. He can also be extremely pragmatic in combat, as he doesn't hesitate to use lethal force against Aki, who is a child.
I believe this character would have the stereotypical Johnny Yong Bosch kind of voice. Try to think smooth and collected. Probably mid to high voice range
Get it now? I'm every inch like you. I'm you... and you're me. We're two sides of the same coin... No, not just two. There are tens of thousands of "you"s inside yourself. ...Someone seems to be aiming to take your place, but that won't happen. Your will is rooted nice and deep. You have a good grip on yourself." (evil, his "true self" is speaking to him, if you can try to do the distorted overlayed voice in like in persona 4)
"I got them pierced when I was a kid so... the whole is completely formed."
(stating normally)"one side bets are boring" (Smugly)