The Rev. Nikki Collins is coordinator of the 1,001 New Worshiping Communities initiative in the Presbyterian Church (USA.) The initiative, which began in 2012, aims to launch 1,001 new Presbyterian churches or ministries by 2022. Collins previously led one of these communities: Bare Bulb Coffee in Georgia.

Imam Khalid Latif is executive director of the Islamic Center at New York University, where he also serves as a chaplain. He is also the co-founder of Honest Chops, New York City’s first organic, halal butcher shop.

Rabbi Yisrael Motzen leads Ner Tamid, a modern Orthodox synagogue in Baltimore.

Rabbi Jacob Blumenthal leads Shaare Torah, a synagogue in Gaithersburg, Md. In July 2019, he will become chief executive of the Rabbinical Assembly, an international association for conservative rabbis.

The Most Rev. Justin Welby is the archbishop of Canterbury, head of the Church of England. He has engaged a number of social issues since being installed in this role in March 2013, including poverty, climate change and medically assisted suicide.

Davis Voas is a professor of social science at University College London, where he studies religious change.  He helps lead the European Values Survey and British Religion in Numbers project.