David Fergusson is a professor of divinity at the University of Edinburgh. His is director of the Scottish Journal of Theology. His research focuses on the relationship between church and society, Christian doctrine, and Christian history, with an emphasis on the history of Catholic and Reformed theology.

Dan Cohn-Sherbok is an honorary professor of history at the University of Aberystwyth and and  visiting professor at St Mary’s University College, London. He is the author and editor of over 70 books on Judaism, including On Earth as it is in Heaven: Jews, Christians, and Liberation Theology, Issues in Contemporary Judaism, and An Atlas of Jewish History.

John Nawas is an associate professor of Near Eastern studies at the Katholieke Universiteit Leuven in Leuven, Belgium. He is an expert on the history and fundamentals of Islam. He has supplied many entries to the Encyclopaedia of Islam.

Christopher Kaczor is a philosophy professor at Loyola Marymount University in Los Angeles and author of The Seven Big Myths About the Catholic Church: Distinguishing Fact From Fiction About Catholicism, in which he discusses the papacy. He can discuss Benedict’s legacy.

Phillip Thompson is executive director of Emory University’s Aquinas Center of Theology. The Aquinas Center is one of four independent Catholic intellectual centers at a non-Catholic U.S. university.

Kenneth Pennington holds the Kelly-Quinn Chair of Ecclesiastical and Legal History at the Catholic University of America and is an expert in church history and canon law. He has written extensively about the papacy.

The Rev. Mark Morozowich is dean of the School of Theology and Religious Studies at The Catholic University of America in Washington, D.C. He can discuss Benedict’s legacy, particularly his contribution to the Eastern churches, and general topics related to the Vatican. Morozowich is an authority on early Christian liturgy and eastern Churches (Orthodox and Catholic).

Monsignor Kevin Irwin is professor of liturgical studies at the Catholic University of America. He can discuss the progression of Benedict’s views on human stewardship of natural resources in his major discourses of moral teaching.

The Rev. Matthew Fox is a former Dominican priest who was silenced by the Vatican in 1988 for his theological writings. Fox is now an Episcopal priest. He is the author of a 2011 book, The Pope’s War: Why Ratzinger’s Secret Crusade Has Imperiled the Church and How It Can Be Saved.