Michael C. Rea is a philosophy professor at the University of Notre Dame and director of its Center for Philosophy of Religion. He co-directs “The Problem of Evil in Modern and Contemporary Thought,” a four-year research initiative at the university, and is co-editor of a book of essays titled Divine Evil?: The Moral Character of the God of Abraham (2011).

Samuel Newlands is assistant professor of philosophy at the University of Notre Dame and co-director of a four-year research initiative there titled “The Problem of Evil in Modern and Contemporary Thought.” He teaches a graduate-level seminar at Notre Dame on evil and previously taught a class at Yale University on free will, God and evil..

Terry Eagleton, a noted British scholar and cultural theorist, is currently distinguished professor of english literature at Lancaster University. His books include On Evil (2010), which examines ideas about evil through the lenses of literature, religion and psychoanalysis.

Roy F. Baumeister is a professor and Francis Eppes Eminent Scholar in Social Psychology at Florida State University in Tallahassee. He is the author of Evil: Inside Human Violence and Cruelty.

University of Alabama psychology professor Martha Crowther researches the role of spirituality across the life cycle. She is particularly interested in spirituality and health in older African-Americans.

Alexander P. Auchus is a neurologist at the University of Mississippi Medical Center with research interests in Alzheimer’s in non-Caucasians.

Harold E. Burchett wrote Last Light: Staying True through the Darkness of Alzheimer’s, a memoir of his wife’s Alzheimer’s disease. He has been a pastor and seminary professor, and lives in Virginia Beach, Va.

Lisa Gwyther is author of You Are One of Us: Successful Clergy-Church Connections to Alzheimer’s Families (Duke University Medical Center, 1994) and director of the Alzheimer’s Family Support program at Duke University Medical Center.

The Rev. David Keck is a Presbyterian minister who teaches pastoral education at Duke University. He is the author of Forgetting Whose We Are: Alzheimer’s Disease and the Love of God. He is also pastor at Northgate Presbyterian Church in Durham, N.C.