Susan Wolf is the Edna J. Koury Distinguished Professor of Philosophy at the University of North Carolina at Chapel Hill. Her work focuses chiefly on ethics and its close relations in philosophy of mind, philosophy of action, political philosophy, and aesthetics. She is author of Freedom within Reason (OUP, 1990) and Meaning in Life and Why It Matters (Princeton, 2010), as well as numerous articles ranging widely over topics in ethics.
Christopher Grau is Associate Professor of Philosophy at Clemson University. He specializes in ethics, topics in metaphysics, and philosophical work on film. He has published articles in The Journal of Aesthetics and Art Criticism, The Journal of Moral Philosophy, Midwest Studies in Philosophy, The Southern Journal of Philosophy and Philosophical Topics. He has also previously edited two books on philosophy and film: Philosophers Explore The Matrix (OUP, 2005), and Philosophers on Film: Eternal Sunshine of the Spotless Mind (Routledge, 2009).