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 Bill Clinton as Himself Henry Kissinger as Himself Katie Couric as Herself Jeff Tweedy as Himself Joe Quesada as Himself Terry Gross as Herself Jeff Daniels as Himself Tim Meadows as Himself Ken Burns as Himself Alex Trebek as Himself Sam Waterston as Himself Patrick Stewart 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 Andy Cohen as Himself Barry Manilow as Himself Tom Brokaw as Himself Kareem Abdul-Jabbar as Himself Christiane Amanpour as Herself Bob Costas as Himself Arianna Huffington as Herself Jon Batiste as Himself Mark Cuban as Himself Shane Smith as Himself Cory Booker as Himself (Cory A. Booker) Doris Kearns Goodwin as Herself Yo-Yo Ma as Himself Mike Huckabee as Himself Randy Newman as Himself Ric Ocasek as Himself Keith Olbermann as Himself Francis Collins as Himself David Leonhardt as Themselves 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 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