We bet you didn't think the yellow M&M was voiced by an actual famous actor. To be honest, we never even thought about it! We would have thought they'd just hire an unknown voice actor for the job, since it's just TV commercials. But that's probably why M&Ms do so well - they don't compromise on quality and they treat everything as a production. Well done guys, you certainly had us fooled!
The voice of the yellow M&M is actor J.K. Simmons, who is best known for his role as J. Jonah Jameson in the Spiderman trilogy. He is also known for playing Dr. Emil Skoda on crime series, Law & Order, as well as Vernon Schillinger in prison drama, Oz. Simmons won an Academy Award, Golden Globe Award, and BAFTA Award for Best Supporting Actor in the film Whiplash.