Celebrity / celebrity The Celeb Voices Behind 15 Commercials He's Mr. Peanut, but his friends call him Iron Man By Evann Gastaldo, Newser Staff Posted Nov 13, 2010 12:37 PM CST Copied The Celeb Voices Behind 15 Commercials Robert Downey, Jr. debuts as the voice of Planters' Mr. Peanut this week. (clowchan) Jon Hamm of "Mad Men" became the voice of Mercedes in March, replacing Richard Thomas, AKA John-Boy from "The Waltons." (robadho) Kelsey Grammer voices the Big Bad Wolf in this Honey Nut Cheerios commercial. (MrClassicAds) Patrick Dempsey of "Grey’s Anatomy" fame has advertising deals with Versace, Avon, Mazda, and State Farm. (hyphenate11) In their new $100 million campaign Campbell's Soup replaced John Goodman with new spokesperson Tim Allen. (AdFreak22) Kevin Spacey voices this 2009 Honda Crosstour. He has a three-year contract and has also done commercials for the Pilot and the 2011 Accord. (the17thman) Kiefer Sutherland voiced this 2006 commercial about Intel chips in Apple computers. (neosable) Jeff Bridges narrated a 2002 campaign for Duracell. (nws2002) 1 of 8 Ever found yourself watching a commercial and thinking, Whose voice is that? The Daily Beast rounds up 15 commercials with very famous actors behind them. Click through a few in the gallery or click here for the complete list. (Sometimes celebs actually get in front of the camera to shill a product—click here for the most cringeworthy results.) See 1 photo Report an error