In other pilot news, ER vet Sherry Stringfield has joined the CBS drama Company Town, playing a whistle-blower at an investment firm.... Mary Stuart Masterson has come onboard CBS' Waterfront, on which Joe Pantoliano plays a charismatic mayor.... Kelly Overton has landed a lead in ABC's Twenty Questions.... Adrian Pasdar is another one of NBC's Heroes.... Simon Baker will join Ray Liotta, Virginia Madsen and Jonny Lee Miller in CBS' Smith.