Craig and Amy started Life.Church in a two-car garage in Edmond, Oklahoma in January 1996. Since then, Life.Church has grown to include dozens of locations all over the United States but its mission statement remains the same: to lead people to become fully devoted followers of Christ. Life.Church has become known for its innovative use of technology to spread the Gospel, launching the first fully digital church experience in 2006 and the most downloaded mobile Bible app in history, YouVersion, in 2008. Craig is a New York Times bestselling author of books on a wide variety of topics, including dating and marriage, social media, purpose, direction, church leadership, & more. https://www.alpha.org/blog/leadership-conversations-with-nicky-gumbel-podcast-craig-groeschel/

Pastors Michael and Natalie Todd are the Lead Pastors of Transformation Church based in Tulsa, OK since February 2015. They were entrusted with Transformation Church from the founding pastor, Bishop Gary McIntosh, after 15 years of operation. Michael’s personal philosophy and driving passion is representing God to the lost and found for transformation in Christ. He aspires to reach his community, city and world with the gospel presented in a relevant and progressive way. Michael and Natalie have been married since 2010 and live in Tulsa with three beautiful children. https://www.alpha.org/blog/leadership-conversations-with-nicky-gumbel-podcast-michael-todd

Timothy Keller is the founding pastor of Redeemer Presbyterian Church in Manhattan, which he started in 1989 with his wife, Kathy, and three young sons.  For 28 years he led a diverse congregation of young professionals that grew to a weekly attendance of over 5,000. He is also the Chairman & Co-Founder of Redeemer City to City (CTC), which starts new churches in New York and other global cities, and creates resources for ministry in an urban environment. In 2017 Dr. Keller transitioned to CTC full time to teach and mentor church planters and seminary students. Dr. Keller’s books, including the New York Times bestselling The Reason for God and The Prodigal God, have sold over 2 million copies and been translated into 25 languages. https://www.alpha.org/blog/leadership-conversations-with-nicky-gumbel-podcast-tim-keller/

Danielle is a spiritual leader, justice advocate, communicator and peace maker. Her aggressive compassion has served people firsthand in countries all over the world. From establishing justice departments and church plants, to launching global anti-trafficking initiatives, to creating new initiatives to mobilize people towards transformational spiritual life. Danielle trains, advocates, and inspires people to live differently through initiatives like: Amplify Peace, Brave Global, Women’s Speakers Collective, and Infinitum. Currently based in Toronto, Canada, Danielle is the proud mum of 3 boys, wife to Stephen, and as an enneagram 7, has been affectionately called the "ambassador of fun". https://www.alpha.org/blog/leadership-conversations-with-nicky-gumbel-podcast-danielle-strickland/

Sandy Millar is married to Annette and they have 4 grown up children.  He practised as a barrister for ten years before being ordained and served as a Curate at Holy Trinity Brompton in London under 2 vicars before changing places with the latter one.  He was Vicar there for 20 years and worked closely with Nicky Gumbel on Alpha before moving to three parishes in North London.  During that time he was consecrated as a Bishop in Uganda.  He remains an Honorary Assistant Bishop in the Dioceses of London and St Edmundsbury. He is retired and lives in Suffolk. https://www.alpha.org/blog/conversations-with-nicky-gumbel-podcast-sandy-millar/

Nicky Gumbel is the pioneer of Alpha and Vicar of Holy Trinity Brompton in London, one of the largest Church of England churches in the UK. He is the author of many books and is married to Pippa. https://www.alpha.org/nickygumbelpodcast