Dr. Timothy Keller is founder and pastor of New York's Redeemer Presbyterian Church in Manhattan. Over the past 20 years, the church has grown to five services at three sites, with a weekly attendance of over 5,000. Named one of the Top 25 Most Influential Churches in America, Keller's ministry is notable not only for winning over New Yorkers who are skeptical to faith, but also for its missional approach, planting more than 100 churches though Redeemer City to City. He is the New York Times bestselling author of The Reason for God, The Prodigal God, and Counterfeit Gods. He blogs at Redeemer City to City.

Francis Chan is the founder of Eternity Bible College. His first book, Crazy Love, has sold over 175,000 copies in its first year. Francis and his family make their home in Southern California.

A visionary leader and champion for the power of the arts and artists in the local church, Nancy Beach is known around the world as a leader and mentor of church artists and teachers. Vice President of the Arts for the Willow Creek Association, she is a teaching pastor at Willow Creek Community Church and the author of An Hour on Sunday and Gifted to Lead.

Robertson Dean has played leading roles on and off Broadway and at dozens of regional theaters throughout the country. He has a BA from Tufts University and an MFA from Yale. His audiobook narration has garnered ten AudioFile Earphones Awards. He now lives in Los Angeles, where he works in film and television in addition to narrating.