Biography: Billy P. Kametz (March 22, 1987 – June 9, 2022) was an American voice actor. He was best known for voicing Josuke Higashikata in JoJo's Bizarre Adventure: Diamond is Unbreakable, Naofumi Iwatani in The Rising of the Shield Hero, and Takuto Maruki in Persona 5 Royal. Description above from the Wikipedia article Billy Kametz, licensed under CC-BY-SA, full list of contributors on Wikipedia.