Guest Stars Jon Stewart as Himself Michael Stipe as Himself Charlie Rose as Himself Bryan Cranston as Himself Vince Gilligan as Himself Mandy Patinkin as Himself Neil deGrasse Tyson as Himself Toby Keith as Himself Willie Nelson as Himself Katie Couric as Herself Henry Kissinger as Himself Bill Clinton as Himself Jeff Tweedy as Himself Terry Gross as Herself Joe Quesada as Himself Jeff Daniels as Himself Sam Waterston as Himself Andy Cohen as Himself Jon Batiste as Himself Tim Meadows as Himself Patrick Stewart as Himself Cyndi Lauper as Herself Tom Brokaw as Himself James Franco as Himself Elijah Wood as Himself J.J. Abrams as Himself Alan Alda as Himself Bob Costas as Himself George Lucas as Himself Alex Trebek as Himself Ken Burns as Himself Barry Manilow as Himself Christiane Amanpour as Herself Kareem Abdul-Jabbar as Himself Mark Cuban as Himself Doris Kearns Goodwin as Herself Mike Huckabee as Himself Randy Newman as Himself Ric Ocasek as Himself Yo-Yo Ma as Himself Shane Smith as Himself Keith Olbermann as Himself Claire McCaskill as Herself Cory Booker as Himself (Cory A. Booker) David Leonhardt as Themselves Francis Collins as Himself Nicholas Kristof as Himself Samantha Power as Herself David Hallberg as Himself David Gregory as Himself Tom Friedman as Himself (Thomas Friedman) Stone Phillips as Himself Steven Pinker as Himself Emily Bazelon as Herself Arianna Huffington as Herself Dan Savage as Himself Alexi Lalas as Himself Andrew Sullivan as Himself Bill de Blasio as Himself (Bill De Blasio) Dean Kamen as Themselves Eleanor Holmes Norton as Herself Eliot Spitzer as Himself Ray Odierno as Themselves Gloria Steinem as Herself Grover Norquist as Himself Matt Taibbi as Himself Maureen Dowd as Herself Norman Ornstein as Himself Paul Krugman as Himself Pussy Riot as Themselves