>>715349469Miyamoto talked about him being from Brooklyn in a Mario 64 interview
https://shmuplations.com/mario64/
>—I noticed that Mario speaks with an Italian accent in this game.>Miyamoto: There’s no particularly detailed background or anything, but yeah, it’s a given that Mario is an Italian-American from Brooklyn, New York. That voice was actually done by a professional voice actor. He did Mario’s voice five or six years ago, at a video game event. By the way, Mario talks a lot more in the American version of Mario 64. He says “Okie Dokie!” and more. Peach also speaks. We had more time before the American release, so we improved the game.