Recurring Guest Characters Duncan Hunter 1 guest appearances Austan Goolsbee 1 guest appearances Bill Kristol 1 guest appearances Simon Schama 1 guest appearances Keith Ellison 1 guest appearances W. Kamau Bell 1 guest appearances Carrie Sheffield 1 guest appearances Elahe Izadi 1 guest appearances David Axelrod 1 guest appearances John Ridley 1 guest appearances Genevieve Wood 1 guest appearances Sean Penn 1 guest appearances Sharyl Atkisson 1 guest appearances Gerald Posner 1 guest appearances Mercedes Schlapp 1 guest appearances Zachary Quinto 1 guest appearances Jay Famiglietti 1 guest appearances Dave Barry 1 guest appearances Clay Aiken 1 guest appearances Christopher Caldwell 1 guest appearances ⇤ « 5 6 7 8 9 10 11 12 13 14 » ⇥