UPDATE [October 13, 2023]: Representatives for actor Mick Wingert, who as of yesterday was suspected of being the new voice of Mario in Super Mario Bros. Wonder, have given comment to IGN to clear the whole thing up.
Wingert's agent, Epoch Talent, has given a statement to the outlet revealing that the actor can neither confirm nor deny his involvement in Super Mario Bros. Wonder but "he can confirm that he is NOT voicing Mario" - so that puts that theory to rest.
As we said yesterday, the datamined list of actors reportedly on board for the new Super Mario game is yet to be confirmed by Nintendo and doesn't link every actor to their character. Considering what Epoch Talent has said above, it's possible that Wingert is part of the project but just isn't down to voice the Nintendo mascot, leaving fans to continue guessing who the new Mario is.
ORIGINAL [October 12, 2023]: Mario's new voice actor may have been uncovered due to a Super Mario Bros Wonder demo datamine.
As reported by VGC, an unverified list of voice actors supposedly attached to the latest Super Mario game has been shared online. The list doesn't link all of the actors to their suspected characters but fans have come to the conclusion that Mick Wingert is the latest actor to bring both Mario and Luigi to life - mostly because everyone else on the list is either a woman, playing a character they've played before, or are suspected to be a Talking Flower. The pair's previous performer, Charles Martinet, announced he'd be stepping down from the role after 32 years a few months ago.
If you head on over to Wingert's IMDB page, Super Mario Bros Wonder obviously isn't listed as Nintendo has said that Mario's new voice actor won't be revealed until the credits of the new game. In terms of what the rumored new actor is known for, they've provided their talents to various animated films, TV shows, and games including Tony Stark in Marvel's What If…?, Heimerdinger in Netflix's Arcane, and Stanley McMillan in Starfield.
It's best to take this with a grain of salt for now, especially since we don't have to wait long until we can find out for ourselves. It'll be interesting to see who is the new voice for Mario and Luigi, and what this means for their good friends Wario and Waluigi too (especially since WarioWare: Move It is also right around the corner) as Martinet was also behind the two characters as well.
Just can't wait to play this one? Take a look at our Super Mario Bros Wonder preview to find out what we've got to look forward to.
