Francesco Beretta, Privat Docent, Faculty of Theology at the University of Fribourg (Switzerland). He is author of “Le procès de Galilée et les Archives du Saint-Office” (1999); “Le Siège Apostolique et l’affaire Galilée” (1999).

Richard Blackwell, Danforth Chair Emeritus in the Humanities, St. Louis University. He is the author of Galileo, Bellarmine, and the Bible (1991).

Richard Bodek, Professor of History, College of Charleston. He is the author of Proletarian Performance in Weimar Berlin (1997) and articles on related subjects.

George Coyne S.J., Director of the Vatican Observatory. He is co-editor of The Galileo Affair: A Meeting of Faith and Science (1985), and co-author of The Louvain Lectures of Bellarmine (1984).

Annibale Fantoli, Adjunct Professor, Department of Philosophy at the University of Victoria (Canada). He is the author of For Copernicanism and for the Church (1996); “Galileo e la Chiesa Cattolica: Considerazione critiche sulla ‘chiusura’ della questione galileiana” (2000).

Owen Gingerich, Research Professor of Astronomy and History of Science, Harvard-Smithsonian Center for Astrophysics. He is the author of “The Galileo Affair” (1984), and An Annotated Census of Copernicus’ De Revolutionibus (2001).

Regine Lutz, actress, played the role of Virginia in the Berliner Ensemble production of Brecht’s The Life of Galileo (1956), directed by Brecht himself.

Ernan McMullin, Director Emeritus, Program in History and Philosophy of Science at the University of Notre Dame. He edited and contributed to Galileo, Man of Science (1964), and is author of “Galileo on Science and Scripture” (1998).

John Rouse, Professor, Department of Theatre and Dance at the University of California at San Diego. He is the author of Brecht and the West German Theatre: The Practice and Politics of Interpretation (1989); “Brecht and the Contradictory Actor” (1995).

Michael Shank, Professor, Department of History of Science, and Senior Member of the Institute for Research in the Humanities, University of Wisconsin. He is the author of “How Shall We Practice History? The Case of Mario Biagioli’s Galileo, Courtier” (1996), and editor of The Scientific Enterprise in Antiquity and the Middle Ages (2000).

Michael Sharratt, Vice-President and Professor of Philosophy, Ushaw College, Durham (England). He is the author of Galileo: Decisive Innovator (1994).

Dava Sobel, science writer. She is the author of Longitude (1995) and Galileo’s Daughter (1999).

Holger Teschke, Five College Professor for Theatre Arts, Mt. Holyoke College; director and dramaturg of the Berliner Ensemble, 1992-1999. He is a playwright and translator, and he has published two volumes of poetry.