Andrew Mellas is a Senior Lecturer at St Andrew's Theological College and an Honorary Associate at the University of Sydney's Medieval and Early Modern Centre. In 2018 he completed a Doctor of Philosophy at the University of Sydney on the emotion of compunction in Byzantium. He has published on Byzantine liturgy and hymnody, as well as presenting papers on these subjects at international conferences. His current projects include exploring the liturgical intersections of hagiography and hymnography, and editing The Cambridge Companion to the Byzantine Church. He is also a member of the Australian Byzantine Choir.