The Rev. John Wauck is a priest of the Prelature of Opus Dei. He lives in Rome, where he teaches literature and the Christian faith at the Pontifical University of the Holy Cross. Wauck has blogged about The Da Vinci Code.

Amy Welborn was a teacher of theology in Catholic high schools and is author of many books including De-coding Da Vinci: The Facts Behind the Fiction of The Da Vinci Code (Our Sunday Visitor, 2004), a Catholic response to the novel, and De-Coding Mary Magdalene: Truth, Legend and Lies (Our Sunday Visitor, 2006).

Bart D. Ehrman wrote Truth and Fiction in The Da Vinci Code : A Historian Reveals What We Really Know about Jesus, Mary Magdalene, and Constantine and teaches religious studies at University of North Carolina, Chapel Hill. Ehrman can place Mary of Nazareth in her historical and modern-day context.

Elaine Pagels is the author of the best-selling Beyond Belief: The Secret Gospel of Thomas (Random House, 2003) and a professor of religion at Princeton University. She has written a number of well-received books on gnosticism, an early Christian movement considered heretical, and early Christianity. Additionally, she is the author of  The Origin of Satan (1996).

Karen L. King is the author of The Gospel of Mary of Magdala: Jesus and the First Woman Apostle (Polebridge Press, 2003). A scholar of gnosticism, the body of nonorthodox early Christian teachings, and a professor of ecclesiastical history, she appeared on a Nov. 3, 2003, ABC television special exploring the claims of the novel about Jesus […]

Esdras Betancourt is director of the Hispanic Ministries department of the Church of God, in Cleveland, Tenn.

Gerald R. Barnes is executive director of the U.S. Conference of Catholic Bishops’ Secretariat for Hispanic Affairs, whose mission is to assist the Catholic Church in its efforts to serve the large Hispanic population in the United States.

Jeremy Gunn is director of the American Civil Liberties Union’s new Program on Freedom of Religion and Belief. The ACLU filed an amicus brief in support of UDV.

Lee Boothby is a civil rights and employment lawyer in Washington, D.C. He was vice president of the International Academy for Freedom of Religion and Belief, which filed an amicus brief in support of UDV.