User blog comment:愛 日音/Sonic Forces: Avatar Voice Guesses/@comment-2202259-20180120072619/@comment-25826354-20180120101929

If you want to, you can do it. The reason I figured out the English voices is because I recognised some of them, like Kirk or Travis, using voices similar to other roles they've done, or because the Avatar Voice sounded very similar to their regular Sonic character, like Cindy or Karen. I'm not familiar enough with the Japanese voice actors to such a thing, since I generally listen to the game in English.