"On Faith" panelist Daisy Khan is Executive Director of ASMA Society (American Society for Muslim Advancement). As wife of Imam Feisal Abdul Rauf, Ms. Khan mentors young Muslims on questions of assimilation, tradition and modernity, and intergenerational challenges. In the aftermath of 9/11, Ms. Khan focused on creating interfaith programs aimed at seeking commonalities among the Abrahamic faith traditions, such as a groundbreaking theater production titled Same Difference and The Cordoba Bread Fest interfaith banquet.

Rabbi Andy Bachman is the spiritual leader at Congregation Beth Elohim, Brooklyn's largest Reform synagogue. He is also the co-founder, along with his wife Rachel Altstein, of Brooklyn Jews, a unique cultural and learning programs for Jews in their 20s and 30s. He was ordained by Hebrew Union College-Jewish Institute of Religion in 1996 and has a BA in history from UW-Madison. From 1998-2004, he was Executive Director of the Edgar M. Bronfman Center for Jewish Student Life at NYU. In 2007, Rabbi Bachman was named as one of the Forward's Fifty most influential Jews in North America. He writes a blog, documenting his life as a congregational rabbi at andybachman.com

"On Faith" panelist Chester Gillis is the Amaturo Chair of Catholic Studies at Georgetown University where he has served on the faculty since 1988. He was chair of the Department of Theology from 2001 to 2005. He holds degrees in philosophy and religious studies from the Catholic University of Louvain in Belgium and earned his Ph.D. at the University of Chicago. His research interests include comparative religion and contemporary Roman Catholicism. He is the author of "A Question of Final Belief: John Hick’s Pluralistic Theory of Salvation" (1989), "Pluralism: A New Paradigm for Theology" (1993), "Roman Catholicism in America" (1999), "Catholic Faith in America" (2003) and editor of "The Political Papacy" (2006). He is co-editor of the Columbia University series Religion and Politics. He is a Fellow in the Berkley Center for Religion, Peace, and World Affairs at Georgetown, and is the Director of Georgetown’s Program on the Church and Interreligious Dialogue.

"On Faith" panelist Greg M. Epstein serves as the Humanist Chaplain of Harvard University, and sits on the executive committee of the 38-member interfaith corps of Harvard Chaplains. In 2005 Epstein received ordination as a Humanist Rabbi from the International Institute for Secular Humanistic Judaism, where he studied in Jerusalem and Michigan for five years. He holds a BA (Religion and Chinese) and an MA (Judaic Studies) from the University of Michigan, Ann Arbor, and a Masters of Theological Studies from the Harvard Divinity School. He is currently writing his first book, tentatively titled Good Without God, which will be about Humanism and will be published by William Morrow/HarperCollins in 2009. Epstein was the primary organizer of The New Humanism, an international conference in April 2007, in honor of the 30th Humanist Chaplaincy of Harvard University. His work has been featured by National Public Radio, BBC Radio, Newsweek, The Boston Globe, The Jewish Daily Forward, and more. He is currently adviser to two student groups at Harvard College, the Secular Society and the Interfaith Council, and to the Harvard Humanist Graduate Community, and is a member of the Advisory Board of the national Secular Student Alliance. Before his graduate studies and work as a chaplain, Epstein worked as singer in a rock band, Sugar Pill, which recorded two albums.