Once you hear J.K. Simmons as the Yellow M&M, it's impossible not to hear it. Simmons puts on a slow drawling speech pattern, but the deep baritone voice is unmistakably his.

Though he's appeared in more than 50 movies and several hit TV shows, J.K. Simmons is perhaps still best known as the deadpan professor in Farmer's Insurance commercials. "It's humbling, to say ...

That’s him in the commercial above with J.K. Simmons. 3. John Goodman // Yellow. Before J.K. made the Yellow M&M his, America’s Sweetheart John Goodman had the role. 4. Jon Lovitz // Red.