Patrick O'Sullivan's research interests primarily include: Greek theatre, Archaic and Classical Greek intellectual history, aesthetics and psychological theories and the role of visual artworks in Greek literary and philosophical texts. He has published on many aspects of Archaic and Classical Greek literature and cultural history such as epic, lyric, and dramatic poetry, (incl. satyr play), rhetoric and the First Sophistic, with topics ranging from ancient aesthetics and literary criticism to athletics and atheism in antiquity, among others; he has also published on Greek and Roman art, including their reception in the Second Sophistic and beyond antiquity. His main project is a book on Euripides' Cyclops and major fragments of satyric drama, to be published by Oxbow. In 2008 he was involved as translator and actor in a full production of Euripides' Cyclops, produced in Christchurch.