It wouldn't surprise me if most of the actors on 'Mad Men' ended up in commercials at some point. It's a show about advertising, so you sort of associate them with ads and commercials.

At least two 'Mad Men' actors, Jon Hamm and Elisabeth Moss, are featured in commercials circulating right now. Hamm is the new voice for Mercedes-Benz, taking the baton from Richard Thomas (John-Boy on 'The Waltons'), who served as the car company's voice-over talent for the past four years.

In a Media Decoder story, Stephen Cannon, vice-president for marketing at Mercedes-Benz USA in Montvale, N.J., calls the new campaign "a nice re-fresh of our voice," adding that Hamm has "a terrific, very resonant voice with a lot of gravitas to it." He also notes that Hamm will help Mercedes-Benz "reach out to a younger, more vibrant audience."