They had a bunch of the Bush's Baked Bean ads with Jay and Duke.  Cute dog being all sassy...what is not to love?

Duke, who's real name is Sam, was euthanized due to an aggressive cancer. He lived in Florida with his owner.

While not the only dog who had played the part of Duke over the years, Duke is so iconic to Bush's Beans they will continue to use him in their advertising, according to WMTW.