Ben Bramble is a Lecturer in Philosophy at the Australian National University and a Mission Specialist at ANU's Institute for Space. He is the author of The Passing of Momentary Well-Being (Routledge, 2018), Pandemic Ethics (2020), and numerous articles including "The Defective Character Solution to the Non-Identity Problem" (2021).

James Lenman is Professor of Philosophy at the University of Sheffield. He has published many articles, mostly on metaethics and normative ethics, and a book, The Possibility of Moral Community (2024).

Roger Crisp is Professor of Moral Philosophy at Oxford University.