Courtesy of their between-song patter (and the tense "backstage" silence of the show's fake intermission), we learn quite a lot about these two--in fact, probably more than you'd ever want to know. Doyle leers and rolls his eyes, overtaken by the sheer power of his singing and by his horniness for a decidedly uninterested Debbie.
Arntson, the show's creator and primary songwriter, is a physical comedian of, shall we say, some considerable merit. There were times that Tuesday night when I thought there might be something truly wrong with him, like maybe a baby alien was about to saw its way out of his midsection. Littleton, though hardly the straight man, takes a subtler approach as she gamely smiles and prances through up-tempo numbers such as "Barefoot and Pregnant" or wields her mike through the heinous anthem "For the Children"=--while her own three urchins (we are told) wait outside in the car for the show to be over.
Best of all, both Arntson and Littleton are fabulous, facile, creative singers with voices that flit from style to style as Doyle and Debbie (in their words) "perform all their top hits to the very best of their ability."