Dr. Dan Schneider is an Adjunct Professor of Theology at Franciscan University of Steubenville and an Associate Staff Member at the St. John Henry Newman Research Centre for Theology at Maryvale Institute in Birmingham, England. A former U.S. Army attack helicopter pilot, Gulf War veteran, and amateur boxer, Schneider has nearly two decades of experience in Catholic evangelization and teaching.

As a founding member of Liber Christo, a movement with Fr. Chad Ripperger, he provides resources for priests and laity in the apostolate of deliverance and exorcism. Schneider is the author of The Liber Christo Method: A Field Manual for Spiritual Combat (TAN Books, 2023), offering practical “guerrilla warfare” tactics for spiritual battles, including five key strategies: Renunciation of Evil Influences, Repentance, Examination of Conscience, Learning Power and Authority, and Prayer. A sought-after speaker, he advocates for sacramental living and spiritual discipline to combat diabolical influences, drawing on his military and theological expertise.