Created by Julian Fellowes ("Downton Abbey"), this new period drama, which opens in 1882, boasts a dazzling cast in chronicling a period of American history that witnessed immense economic change and a dramatic clash between the "old ways" and brand new systems of the era. Christine Baranski and Cynthia Nixon head the main cast, with a supporting ensemble that includes such theater luminaries as Nathan Lane, Audra McDonald, Michael Cerveris, Donna Murphy, Bill Irwin, Kelli O'Hara and Carrie Coons.