Hassan Hassan is a co-author of the New York Times bestseller, ISIS: Inside the Army of Terror. He also writes for The National. His areas of expertise include Syria and Iraq.

Karen Armstrong, a former Catholic nun, is an authority on the Abrahamic religions and author of many books on the subject. Her most recent book is Fields of Blood: Religion and the History of Violence.

Philip Freeman is a professor of Classics at Luther College in Decorah, Iowa. His research focuses on Classical Mythology, Ancient Roman Culture, Greece and Rome in film, as well as Latin.

The Rev. Nageeb Michael is a Dominican priest and a scholar at the Digital Center for Eastern Manuscripts. He digitizes historic Assyrian Christian manuscripts, according to a New York Times article, and he fled the city in which he previously worked, Qaraqosh, when the Islamic State gained control of the area. He is a source on art and religion.

Tina Beattie is a professor of Catholic studies at the University of Roehampton in London. She focuses her research on the relationship between the Catholic tradition and contemporary culture with an emphasis on gender, sexuality, and reproductive ethics. She also studies Catholic social teaching and women’s rights, and theology and the visual arts.

Andre Key is an assistant professor of history at Paine College in Augusta, Georgia. He is an expert in the historical development of Black Hebrew religion and Hebrew Israelite ethno-religious identity.

Kathleen Garces-Foley is a professor of theology and religious studies at Marymount University in Arlington, Virginia. She is co-author of The Twenty-something Soul: Understanding the Religious and Secular Lives of American Young Adults.

Arvind Mandair is an associate professor and S.C.S.B Endowed Professor of Sikh Studies at the University of Michigan. He is a Sikhism expert.

Richard H. Davis is a professor of Religion and the director of the Religion Program and the Asian Studies Program at Bard College. He is a Sikhism expert.