Alain Badiou, Ph.D., born in Rabat, Morocco in 1937, holds the Rene Descartes Chair at the European Graduate School EGS. Alain Badiou was a student at the École Normale Supérieure in the 1950s. He taught at the University of Paris VIII (Vincennes-Saint Denis) from 1969 until 1999, when he returned to ENS as the Chair of the philosophy department. He continues to teach a popular seminar at the Collège International de Philosophie, on topics ranging from the great 'antiphilosophers' (Saint-Paul, Nietzsche, Wittgenstein, Lacan) to the major conceptual innovations of the twentieth century. Much of Badiou's life has been shaped by his dedication to the consequences of the May 1968 revolt in Paris. Long a leading member of Union des jeunesses communistes de France (marxistes-léninistes), he remains with Sylvain Lazarus and Natacha Michel at the center of L'Organisation Politique, a post-party organization concerned with direct popular intervention in a wide range of issues (including immigration, labor, and housing). He is the author of several successful novels and plays as well as more than a dozen philosophical works. Trained as a mathematician, Alain Badiou is one of the most original French philosophers today. Influenced by Plato, Georg Wilhelm Friedrich Hegel, Jacques Lacan and Gilles Deleuze, he is an outspoken critic of both the analytic as well as the postmodern schools of thoughts. His philosophy seeks to expose and make sense of the potential of radical innovation (revolution, invention, transfiguration) in every situation.

Michael Hardt is an American literary theorist and political philosopher perhaps best known for Empire, written with Antonio Negri and published in 2000. It has been praised as the "Communist Manifesto of the 21st Century." Hardt and his co-author suggest that what they view as forces of contemporary class oppression, globalization and the commodification of services (or production of affects), have the potential to spark social change of unprecedented dimensions. A sequel, Multitude: War and Democracy in the Age of Empire, published in August 2004, details the notion, first propounded in Empire, of the multitude as possible locus of a democratic movement of global proportions. The third and final part of the trilogy, Commonwealth, appeared in the Fall of 2009.

Slavoj Žižek is a Slovene sociologist, philosopher, and cultural critic. He was born in Ljubljana, Slovenia (then part of SFR Yugoslavia). He received a Doctor of Arts in Philosophy from the University of Ljubljana and studied psychoanalysis at the University of Paris VIII with Jacques-Alain Miller and François Regnault. In 1990 he was a candidate with the party Liberal Democracy of Slovenia for Presidency of the Republic of Slovenia (an auxiliary institution, abolished in 1992). Since 2005, Žižek has been a member of the Slovenian Academy of Sciences and Arts. Žižek is well known for his use of the works of 20th century French psychoanalyst Jacques Lacan in a new reading of popular culture. He writes on many topics including the Iraq War, fundamentalism, capitalism, tolerance, political correctness, globalization, subjectivity, human rights, Lenin, myth, cyberspace, postmodernism, multiculturalism, post-marxism, David Lynch, and Alfred Hitchcock. In an interview with the Spanish newspaper El País he jokingly described himself as an "orthodox Lacanian Stalinist". In an interview with Amy Goodman on Democracy Now! he described himself as a "Marxist" and a "Communist."

Deleuze is a key figure in poststructuralist French philosophy. Considering himself an empiricist and a vitalist, his body of work, which rests upon concepts such as multiplicity, constructivism, difference and desire, stands at a substantial remove from the main traditions of 20th century Continental thought. His thought locates him as an influential figure in present-day considerations of society, creativity and subjectivity. Notably, within his metaphysics he favored a Spinozian concept of a plane of immanence with everything a mode of one substance, and thus on the same level of existence. He argued, then, that there is no good and evil, but rather only relationships which are beneficial or harmful to the particular individuals. This ethics influences his approach to society and politics, especially as he was so politically active in struggles for rights and freedoms. Later in his career he wrote some of the more infamous texts of the period, in particular, Anti-Oedipus and A Thousand Plateaus. These texts are collaborative works with the radical psychoanalyst Félix Guattari, and they exhibit Deleuze’s social and political commitment. Gilles Deleuze began his career with a number of idiosyncratic yet rigorous historical studies of figures outside of the Continental tradition in vogue at the time. His first book, Empirisism and Subjectivity, is a study of Hume, interpreted by Deleuze to be a radical subjectivist. Deleuze became known for writing about other philosophers with new insights and different readings, interested as he was in liberating philosophical history from the hegemony of one perspective. He wrote on Spinoza, Nietzche, Kant, Leibniz and others, including literary authors and works, cinema, and art. Deleuze claimed that he did not write “about” art, literature, or cinema, but, rather, undertook philosophical “encounters” that led him to new concepts. As a constructivist, he was adamant that philosophers are creators, and that each reading of philosophy, or each philosophical encounter, ought to inspire new concepts. Additionally, according to Deleuze and his concepts of difference, there is no identity, and in repetition, nothing is ever the same. Rather, there is only difference: copies are something new, everything is constantly changing, and reality is a becoming, not a being. He often collaborated with philosophers and artists as Félix Guattari, Michel Foucault, Guy Hocquenghem, René Schérer, Carmelo Bene, François Châtelet, Olivier Revault d'Allonnes, Jean-François Lyotard, Georges Lapassade, Kateb Yacine and many others.