Sean D. Aas is a Senior Research Scholar at the Kennedy Institute of Ethics and Assistant Professor in the Philosophy Department at Georgetown University. His primary areas of research are bioethics and social and political philosophy, with a significant focus on issues of disability: disability as social construct, disability and political egalitarianism, disability and health.

Collin O'Neil is an Associate Professor in the Philosophy Department at Lehman College, City University of New York. He teaches and writes on applied ethics, especially medical and clinical research ethics, and topics in legal philosophy.

Chiara Lepora has worked for Medecins Sans Frontieres since 2002 and is currently Head of the Manson Unit for MSF UK. She is a medical doctor who conducts research on the ethics of humanitarian assistance and coauthored, with Robert E. Goodin, the book, On Complicity and Compromise (2013).

Puzzles, Paradoxes, and Thought Experiments in Philosophy Books