Katja Rakow is an assistant professor of religious studies at Utrecht University in the Netherlands. She studies Christian megachurches in the United States and Singapore and contemporary Pentecostalism more broadly.

Marie Collins is a survivor of clergy sexual abuse who now advocates for meaningful change in Catholic Church policy. She was appointed to the Pontifical Commission for the Protection of Minors in 2014, but she resigned in frustration in 2017 because of a lack of action from Vatican officials.

Ruth Bancewicz serves as church engagement director for The Faraday Institute for Science and Religion, helping faith groups in the United Kingdom improve their approach to science.

Sean O’Callaghan is an associate professor of religion at Salve Regina University in Newport, Rhode Island. He studies New Religious Movements, religiously motivated violence and transhumanism.

Robert Song is a Christian ethicist based at Durham University in the United Kingdom. He studies the moral implications of medical interventions such as gene editing.

Anders Sandberg is a research fellow with the Future of Humanity Institute at the the University of Oxford. He studies the ethics of human enhancement. 

Aubrey de Grey is the co-founder and chief science officer of the SENS Research Foundation, an organization dedicated to the study of radical life extension. He is based in Cambridge, U.K., and Mountain View, Calif.

Jane Mellett is a parish pastoral worker in the Archdiocese of Dublin. In 2018, she tweeted every line of Laudato Si’ to President Donald Trump to protest his environmental policies.

Bastiaan Rutjens is an assistant professor of psychology at the University of Amsterdam. He studies what leads to distrust in science.