Donna Freitas is Assistant Professor of Religion at Boston University. The "On Faith" panelist's literary and academic focus is the struggle of belonging and alienation with regard to faith, particularly among young adults, and especially young women. Freitas asks the 'Big Questions' (Why are we here anyway?) and delights in discovering the many forums in which to dabble with faith, religion, spirituality, and gender. A Catholic, she also is an ardent feminist. Her books include Becoming a Goddess of Inner Poise: Spirituality for the Bridget Jones in All of Us, (2005) and Save the Date: A Spirituality of Dating, Love, Dinner & the Divine. Freitas' most recent book project is Sex and the Soul, set for publication in 2007. It is based on a national study about the influence of sexuality and romantic relationships on the spiritual identities of America 's college students. Freitas' first novel, The Possibilities of Sainthood, which is about 15-year Antonia Lucia Labella, who aspires to become the first official living saint in Catholic history, is due for publication in 2008. Freitas can be reached through her website at www.donnafreitas.com.

Martin E. Marty is Fairfax M. Cone Distinguished Service Professor Emeritus at the University of Chicago, where he taught religious history, chiefly in the Divinity School, for 35 years, and where the Martin Marty Center has been founded to promote “public religion” endeavors. For a decade prior to entering academia, the “On Faith” panelist served parishes in the west and northwest suburbs of Chicago as an ordained Lutheran pastor. Marty is the author of more than 50 books including Righteous Empire: The Protestant Experience in America (1970), for which he won the National Book Award. His additional honors include the National Humanities Medal, the Medal of the American Academy of Arts and Sciences, the University of Chicago Alumni Medal, the Distinguished Service Medal of the Association of Theological Schools, and the Order of Lincoln Medallion (Illinois’ top honor). Marty has served as president of the American Academy of Religion, the American Society of Church History, and the American Catholic Historical Association. He also has served on two U.S. Presidential Commissions and was director of the Fundamentalism Project of the American Academy of Arts and Sciences and the Public Religion Project at the University of Chicago. He is Senior Regent of St. Olaf College in Northfield, Minnesota.

R. Albert Mohler, Jr. is the ninth president of The Southern Baptist Theological Seminary—the flagship school of the Southern Baptist Convention and one of the largest seminaries in the world. The “On Faith” panelist is a theologian and ordained minister and has served as pastor and staff minister of several Southern Baptist churches. He holds a Master of Divinity degree and the Doctor of Philosophy (in systematic and historical theology) from Southern Seminary. He did additional study at the St. Meinrad School of Theology and research at Oxford University. He became seminary president after serving as editor of The Christian Index, the oldest of the state papers serving the Southern Baptist Convention. Called "an articulate voice for conservative Christianity at large" by the Chicago Tribune, Mohler's mission is to address contemporary issues from a consistent and explicit Christian worldview. He hosts a daily radio program for the Salem Radio Network and blogs on moral, cultural and theological issues. He also has contributed chapters to several books including Hell Under Fire, Whatever Happened to Truth, Here We Stand: A Call From Confessing Evangelicals and The Coming Evangelical Crisis. He served as General Editor of The Gods of the Age or the God of the Ages: Essays by Carl F. H. Henry.

"On Faith" panelist Miroslav Volf holds the Henry B. Wright Chair of Theology at Yale Divinity School and serves as Director of the Yale Center for Faith & Culture. A native of Croatia, he studied at the Evangelical-Theological Faculty in Osijek, Croatia before earning his Masters degree from Fuller Seminary in Pasadena, California . He also holds two doctoral degrees from the University of Tubingen, Germany. While teaching at Fuller, theologian Volf wrote Exclusion and Embrace , A Theological Exploration of Identity, Otherness, and Reconciliation, an exploration of how it is possible to forgive and love our enemies. The book was widely acclaimed as a readable, challenging, and relevant work on the reconciling message of Jesus in a world torn by violence and hatred. It received the 2002 Grawemeyer Award for Religion. Another of Volf's books, Free of Charge: Giving and Forgiving in a Culture Stripped of Grace was published as the Archbishop of Canterbury's Lenten study book for 2006. It explores how we give and forgive in light of God's generosity and Christ's sacrifice for us. Volf's most recent book is The End of Memory: Remembering Rightly in a Violent World (2006).