Sujin Pak is an assistant professor of the history of Christianity at Duke Divinity School in Durham, N.C. where she specializes in the Protestant Reformation, women and the Reformation and Jews and the Reformation.

Alec Ryrie is a professor in the department of theology and religion at Durham University in Durham, England. He is the author of Protestants: The Faith that Made the Modern World.

Diarmaid MacCulloch is a professor of the history of the church at St. Cross College at Oxford University in Oxford, England. He is the author of The Reformation: A History.