Pretty, blonde, full-figured actor of TV and several feature films who, after ending up on the editing room floor in her first feature, "Three Amigos" (1986), enjoyed the attention she received as the woman in a series of Diet Pepsi ads for whom Michael J. Fox almost literally goes through hell and high water. O'Grady kept busy in guest spots on a variety of TV shows including "Matlock", "Cheers" and "China Beach" (dueting on "These Boots Are Made for Walkin'" with fellow guest star Nancy Sinatra) and played Chad Lowe's leading lady in the cross-dressing teen comedy, "Nobody's Perfect" (1989).