Meet our Team

Keith Welton - Lead Pastor
Keith is originally from Macon, Georgia, and received his undergrad from the University of Tennessee his masters from Reformed Theological Seminary.  He has been in ministry since 2000 and that has taken him from Knoxville to Orlando to Washington DC,  Durham and finally Alpharetta. Keith is married to Amanda, and together they have four children. In his spare time, he enjoys playing tennis, outdoor activities, and smoking large slabs of meat.
Mark Pfaller - Associate Pastor
Mark joined Radiant Church in 2023 and brings a wide range of knowledge and experience. He holds a BS in Mechanical Engineering, an MBA, and a Master of Divinity degrees. He has spent two decades in the corporate world and also served as a church planter and lead pastor. He is married to Kim. They have three adult children and four grandchildren. 
David Ancalle - Elder
David is originally from Puerto Rico and joined Radiant Church in 2016. He has a decade of professional experience in engineering and teaching. At church he serves with worship and technology and leads the youth group. He holds BS and MS degrees in civil engineering and an MA in Theology. He is married to Aijia Xu and lives in Alpharetta.
Jon Kubler - Administrator
Jon leads the administrative team and handles much of the business side of the church. He has been involved in the church for three decades and served in virtually every capactiy. He retired from the corporate world in 2008 to volunteer at the church and focus on growing God’s kingdom. 
Andrew Johnson - Worship and Technology
Andrew grew up in Forsythe County and studied music at North Georgia College. He attended the Ramp School of Ministry in Alabama and over the years has led worship in a variety of contexts and styles. He is married to Elizabeth and has four children. 
Michele Robles - Administration & Event Coordination
Michele is originally from the Bay Area of California and then moved to Hawaii where they raised their children. She has a rich background as an Executive Director and experience serving on various non-profit boards. Michele brings seasoned leadership and administrative expertise to our team.