Heather MacDonald, Alan Macfarlane, Seth MacFarlane, James Madison, Bill Maher, John Malkovich, Make Malloy, Barry Manilow, Marilyn Manson, Shirley Manson, Mao Zedong, Rudolph Marcus, Christopher Marlowe, Dave Matthews, Michael Martin, Karl Marx, Nick Mason, Marcello Mastroianni, Henri Matisse, Dave Matthews, Armistead Maupin, Ernst Mayr, Paul Mazursky, Giuseppe Mazzini, Joseph McCabe, Joseph McCabe, John McCarthy, Malachy McCourt, Evelyn McDonnell, Ian McEwan, Todd McFarlane, Colin McGinn, Montana McGlynn, Sir. Ian McKellen, Sarah McLachlan, Alexander McQueen, Butterfly McQueen, Jonathan Meades, Herman Melville, H.L. Mencken, Antonio Mendoza, Stephen Merchant, George Meredith, Prosper Merimee, Jean Meslier, Tom Metzger, George Meyer, China Mieville, John Stuart Mill, Arthur Miller, Frank Miller, Jonathan Miller, Mike Mills, Marvin Minsky, Helen Mirren, Peter D. Mitchell, Warren Mitchell, Francois Mitterrand, John Money, Jacques Monod, Julianne Moore, Robin Morgan, Henry Morgentaler, Desmond Morris, James Morrow, John Mortimer, Markos 'Kos' Moulitsas Z, Wolfgang Amadeus Mozart, Martin Mull, Frank Mullen, Cillian Murphy, P.Z. Myers.
Vladimir Nabokov, Fridtjof Nansen, Taslima Nasrin, Ramendra Nath, Jawaharlal Nehru, Ted Nelson, Pablo Neruda, Mike Newdow, Paul Newman, Randy Newman, Thandie Newton, Mike Nichols, Jack Nicholson, Kai Nielsen, Oscar Niemeyer, Friedrich Nietzsche, Florence Nightingale, Robert Nozick, Gary Numan, Ronald Numbers, Paul Nurse.
Joyce Carol Oates, Dara O'Briain, Bob Odenkirk, Piergiorgio Odifreddi, Madalyn Murray O'Hair, Bree Olson, George Orwell, Douglas Osheroff, Patton Oswalt, Ouida, Robert Dale Owen.
Niccolo Paganini, Camille Paglia, Thomas Paine, Olof Palme, James Parton, Andy Partridge, Mark Pauline, Linus Pauling, Philip K. Paulson, Ivan Pavlov, Leonard Peikoff, Sean Penn, Paul Pfalzner, Julia Phillips, Joaquin Phoenix, Ferdinand Piech, Marge Piercy, Massimo Pigliucci, Steven Pinker, Harold Pinter, Camille Pissarro, Brad Pitt, Edgar Allan Poe, Roman Polanski, Neal Pollack, Katha Pollitt, Karl Popper, Carolyn Porco, Natalie Portman, Paula Poundstone, Vladimir Pozner, Terry Pratchett, Paul Provenza, William B. Provine, Philip Pullman.
Robin Quivers.
Daniel Radcliffe, Justin Raimondo, Ayn Rand, Lisa Randall, James Randi, Ron Reagan Jr., Lord Martin Rees, Christopher Reeve, Keanu Reeves, Carl Reiner, Lord Colin Renfrew, Rick Reynolds, Michael Trent Reznor, Griff Rhys-Jones, Robert Coleman Richardson, Mordecai Richler, Christopher Ricks, Matt Ridley, Nikolai Rimsky-Korsakov, Brian Ritchie, Diego Rivera, Brad Roberts, Chris Robinson, Gene Roddenberry, Auguste Rodin, Richard Rodgers, Joe Rogan, Carl Rogers, Neil Rogers, Henry Rollins, Ray Romano, Andy Rooney, Philip Roth, Richard Rorty, Dante Gabriel Rossetti, Arundhati Roy, William L. Rowe, Arthur Rubenstein, Jane Rule, Salman Rushdie, Douglas Rushkoff, Bertrand Russell, Karen Russell.
