Polly Filler: Spoof broadsheet woman's columnist, whose articles are about how difficult it is being an upper-middle class young mother, because you have to spend all day telling the au pair to do things. Also uses her column to plug the collected edition of her columns, the novel based on her columns and, most recently, the film based on the novel based on her columns.
"The Useless Simon", her husband, who she presents as lazy and loutish but who is actually implied to be a better (or at least, as good a) person than she is.