We try to find presenters from a variety of backgrounds. They can be laymen, converts, pastors, or scholars. We typically try to pair like presenters -- i.e. Catholic layman with Protestant layman, Protestant minister or scholar with Catholic priest or scholar, etc.
Some notable past presenters have included:
Dr. William Marshner from Christendom College
Rob Corzine from the St. Paul Center for Biblical Theology
Canon Alistair Mac Donald-Radcliff, Dean of All Saints Cathedral in Cairo, Egypt (Anglican)
Chaplain Mark Benz, US Army (Retired) Association of Free Lutherans
Vaughn Treco, former Canon Theologian in the Charismatic Episcopal Church
If you know someone who might make a good presenter or if you have interest yourself in presenting, just email me at firstname.lastname@example.org. Please put the word "presenter" in the subject line. Let me know what topic you'd like to present on and what church perspective you'll represent (Baptist, Catholic, Methodist, etc.).