Grant Gillett is Professor Emeritus of Philosophy and Biomedical Ethics at the University of Otago and Professor in Law and Medicine at AUT University. He is the author of 11 books and is now working in the area of postcolonialism and indigenous, specifically Maori, perspectives on health, law and philosophy. He received an MBChB in Medicine from the University of Auckland, and an MSc in Psychology and a DPhil in Philosophy from Oxford University. He was a practicing neurosurgeon at Dunedin Hospital from 1988 to 2010.
Walter Glannon is Professor Emeritus of Philosophy at the University of Calgary. He is the author or editor of 13 books. He received a PhD in Philosophy from Yale University.