Paul Giamatti John Adams Actor Laura Linney Abigail Adams Actor Stephen Dillane Thomas Jefferson Actor Danny Huston Samuel Adams Actor Tom Wilkinson Benjamin Franklin Actor Sarah Polley Abigail Adams Smith Actor David Morse George Washington Actor Justin Theroux John Hancock Guest Star Guy Henry Jonathan Sewall Guest Star John Bedford Lloyd Richard Palmes Guest Star Ritchie Coster Captain Preston Guest Star Steven Hinkle Young John Quincy Adams Guest Star Madeline Taylor Young Nabby Adams Guest Star Brennan Brown Robert Treat Paine Guest Star Boris McGiver Robert Goddard Guest Star Tom Beckett Elbridge Gerry Guest Star Bill Buell Justice Lynde Guest Star Tom Hooper Director Tom Hanks Executive Producer Gary Goetzman Executive Producer Kirk Ellis Executive Producer Frank Doelger Producer David Coatsworth Producer