Guest Stars Jon Stewart as Himself Michael Stipe as Himself Charlie Rose as Himself Bryan Cranston as Himself Mandy Patinkin as Himself Neil deGrasse Tyson as Himself Vince Gilligan as Himself Toby Keith as Himself Willie Nelson as Himself Henry Kissinger as Himself Katie Couric as Herself Bill Clinton as Himself Jeff Tweedy as Himself Joe Quesada as Himself Terry Gross as Herself Patrick Stewart as Himself Jeff Daniels as Himself Tim Meadows as Himself Alex Trebek as Himself Sam Waterston as Himself Alan Alda as Himself James Franco as Himself Elijah Wood as Himself J.J. Abrams as Himself George Lucas as Himself Cyndi Lauper as Herself Ken Burns as Himself Andy Cohen as Himself Tom Brokaw as Himself Barry Manilow as Himself Christiane Amanpour as Herself Kareem Abdul-Jabbar as Himself Bob Costas as Himself Arianna Huffington as Herself Jon Batiste as Himself Mark Cuban as Himself Randy Newman as Himself Mike Huckabee as Himself Doris Kearns Goodwin as Herself Ric Ocasek as Himself Yo-Yo Ma as Himself Shane Smith as Himself Keith Olbermann as Himself 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 Stone Phillips as Himself Steven Pinker as Himself Tom Friedman as Himself (Thomas Friedman) Emily Bazelon as Herself Dan Savage as Himself Alexi Lalas as Himself Andrew Sullivan as Himself Bill de Blasio as Himself (Bill De Blasio) Claire McCaskill as Herself 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