They debuted in "From Method to Madness", when Peter Griffin saved him from drowning in the ocean. As thanks, they invited him, his wife, and kids for dinner. This was when the Griffins realized that the Campbells were nudists, after originally thinking Dave's bathing suit fell off in the ocean. At one point, Peter accidentally grabbed his penis while searching for his hot dog. The Griffins eventually became friends with the Campbells, despite initial reactions to their choice of fashion.
He is voiced by Fred Willard.