Perhaps best known as the lovable teen heartthrob Mike Seaver on ‘Growing Pains,’ (1985 – 1992), Kirk also played Buck Williams in the ‘Left Behind’ movies, based on the best-selling novels of the same name. He starred in the 2008 movie ‘Fireproof’ and has been noted for his work in the best-selling documentary ‘Monumental.’
Dr. Kevin Leman is an internationally known Christian psychologist, speaker, parenting-expert, and award-winning author of the New York Times bestseller, Have A New Kid by Friday. He is a radio and television personality and has taught and entertained audiences worldwide with his wit and common sense psychology.
Author of the New York Times best-selling book The Case For Christ. Before becoming a Christian, Lee was an award-winning legal editor of The Chicago Tribune. He is the author of nearly twenty books and has been interviewed on numerous national television programs, including ABC's 20/20, Fox News, and CNN.
Dr. Jeff Myers is president of Summit Ministries, a highly respected worldview training program whose tens of thousands of graduates are making a difference in politics, law, academics, medicine, science, and business. In the last 20 years Dr. Myers has become one of America’s most respected authorities on youth leadership development. Focus on the Family founder James Dobson referred to him as “a very gifted and inspirational young leader.” 
Christian Hollywood Producer, Founder of Skip1.org, and Passionate Speaker
Dr. Cloud is a clinical psychologist, leadership consultant, best-selling author, and speaker. He has written and co-written more than twenty books, including the two-million-seller Boundaries, Necessary Endings, Integrity, The One Life Solution, The Law of Happiness, and 9 Things You Simply Must Do.
Ed Stetzer, Ph.D., is a professor and dean at Wheaton College where he also serves as Executive Director of the Wheaton College Billy Graham Center
Mark Mittelberg is a bestselling author, sought-after speaker, leading outreach strategist, and the Executive Director of the Center for Strategic Evangelism, in partnership with Houston Baptist University.  Mark’s passion for equipping people to defend their faith is uniquely approachable, humorous, and always very practical.
Josh McDowell’s cutting-edge ministry has been reaching the spiritually skeptical for almost four decades, and he has touched the lives of more than seven million young people in 84 countries. Josh has written or co-written over 138 books on topics ranging from Christian apologetics to common problems facing youth.
His video 'Why I Hate Religion, But Love Jesus' has over 24 million views on YouTube! He is also the author of Jesus > Religion and blogs at Jeffbethke.com.