Dr. O’Donnell is the president of Christendom College, where he also teaches courses in history and theology. He was the first layman to receive both his licentiate and doctoral degrees in Ascetical and Mystical Theology from the Pontifical University of St. Thomas Aquinas (Angelicum) in Rome. He has taught at St. John’s Seminary in Camarillo, California and at Loyola Marymount University in Los Angeles, California.
He is a Knight Grand Cross of the Knights of the Holy Sepulchre, and is a popular speaker worldwide, most recently being asked to speak at the Pontifical Council on the Family’s World Meeting of Families in Philadelphia. Additionally, he is the author of Heart of the Redeemer and Swords Around the Cross: The Nine Years War.