Bob Passantino (1951 – 2003), was a Christian author and journalist who wrote on subjects related to Christian apologetics, philosophy, and the Christian countercult movement. He and his wife Gretchen (1953 – 2014) ministered together for close to thirty years. Through their Answers in Action ministry, they equipped Christians to share and defend their faith and helped countless seekers find faith. Bob and Gretchen were frequent guests on radio discussions on secular and Christian stations around the country. They have authored several books, including Answers to the Cultist at Your Door which earned a Gold Medallion Award for Excellence in Christian Education.