Baritone James Cleverton has appeared in principal roles at the Royal Opera House Covent Garden, English National Opera, Glyndebourne Festival Opera, Scottish Opera, Welsh National Opera, Opera North, Opernhaus Zürich, Salzburg Festival, Theater St Gallen, Opéra de Rennes and the major UK opera festivals. 

Recent performances include Starek in Jenufa, Mathieu in Andrea Chenier & Johann in Werther for the Royal Opera House, Kallenbach in Satyagraha for ENO, Gusmano in Verdi's Alzira for the Buxton International Music Festival, Baron Douphol in La Traviata for Opera North, ROH and WNO, title role and Marco in Gianni Schicchi for Scottish Opera and WNO, Daedalus in the world premiere of Michael Zev Gordon's Raising Icarus for the Barber Institute and was the baritone soloist for the European premiere of Roberto Sierra's Missa Latina with the Orquesta y Coro Nacional at the Madrid National Concert Hall under the baton of Karen Kamensek.

Future plans include returns to the Royal Opera House Covent Garden, Glyndebourne Festival, his German debut at Oper Bonn and his Longborough Festival debut.