Azim Khamisa is the founder and president of the Tariq Khamisa Foundation (TKF), a foundation created in memory of his beloved 20-year-old son Tariq, who was murdered in January 1995. In an amazing act of forgiveness, Mr. Khamisa reached out to Mr. Ples Felix, the grandfather and guardian of his son's killer, and together they are working to break the cycle of youth violence. The author of the award-winning book Azim's Bardo: A Fathers Journey From Murder to Forgiveness, he is featured in two of the Campaign for Love & Forgiveness films: The Mystery of Love and The Power of Forgiveness.

Frederic Luskin, Ph.D., is a senior consultant in health promotion at Stanford University, where he teaches classes on spirituality and health and positive psychology. He serves as director of the Stanford Forgiveness Projects and was co-director of the Stanford-Northern Ireland HOPE Projects, which explored the effectiveness of his forgiveness methods on victims of political violence. He gives lectures and workshops on the importance, health benefits, and training of forgiveness across the country. He is the author of Forgive for Good: A Proven Prescription for Health and Happiness, co-author of Stress Free for Good: 10 Scientifically Proven Life Skills for Health and Happiness, and the recently released guide for forgiveness for couples, Forgive for Love: The Missing Ingredient for a Healthy and Lasting Relationship.

Stephen G. Post, Ph.D., is professor of bioethics, philosophy, and religion at Case Western Reserve University in Cleveland and a leading scholar on love and altruism. He is president of The Institute for Research on Unlimited Love, which studies the benefits of benevolent love. His most recent book is, as co-author, Why Good Things Happen to Good People: The Exciting New Research That Proves the Link Between Doing Good and Living a Longer, Healthier, Happier Life. He also wrote Unlimited Love: Altruism, Compassion and Service and co-edited Altruism and Altruistic Love: Science, Philosophy, and Religion in Dialogue.

Everett L. Worthington, Jr., Ph.D., is a professor of psychology at Virginia Commonwealth University and a licensed clinical psychologist. His work is focused on the scientific study of forgiveness, and he considers his mission “to bring forgiveness into every willing heart, home, and homeland.” Dr. Worthington has published more than 20 books and 200 articles and scholarly chapters, mostly on forgiveness, marriage, and family topics. He frequently discusses forgiveness, marriage, and family in media. He became interested in forgiveness through his practice in couples counseling and began conducting research on forgiveness in 1990. Later he developed a group intervention to help people forgive. Since 1999, he has studied how forgiveness and justice work together and can oppose each other, a topic he became interested in after the murder of his mother and his struggle to forgive both the murderer and himself. From 1998 to 2005, he directed A Campaign for Forgiveness Research, a non-profit organization that supports research into forgiving.