At the same time, with no LuPone-prone camp to her capers, Foster stars - yet generously blends - with the rest of the assured cast. As the lovelorn Billy Foster, Donnell suggests a somewhat more compact Jon Hamm as a much less agonized Don Draper. Laura Osnes brings a crystalline grace to the role of debutante Hope Harcourt, pressured by her status-conscious mother (hooray for Jessica Walter) to marry into class - and money. Mama's quarry, the audience knows, is Lord Oakleigh, a prime specimen of an upper-class twit, all foppish, repressed postures. What the audience doesn't know is that British theater regular Adam Godley will, by the time he busts loose with Foster in 'The Gypsy in Me,' steal his crucial bit of the show and utterly delight the cheering house with his brilliant comic timing.