Bill Maher Host, Executive Producer, Writer Lawrence O'Donnell Guest John Legend Guest Mark McKinnon Guest Dana Loesch Guest Markos Moulitsas Guest Nicolle Wallace Guest Fareed Zakaria Guest Martha Raddatz Guest Michael Moore Guest Adrian Fenty Guest Dan Neil Guest Jimmy Carter Guest Bill O'Reilly Guest Robert Reich Guest Al Sharpton Guest Joe Klein Guest Zach Galifianakis Guest Joe Sestak Guest Levi Johnston Guest Billy Martin Executive Producer, Writer Marc Gurvitz Executive Producer Sheila Griffiths Executive Producer Brad Grey Executive Producer Scott Carter Executive Producer, Writer Adam Felber Writer Matt Gunn Writer Brian Jacobsmeyer Writer Jay Jaroch Writer Chris Kelly Writer Hal Grant Director