Alexander has performed extensively at home and abroad with many distinguished companies. These include The Royal Opera House, Covent Garden; English National Opera; Grange Park Opera; Carl Rosa Opera. In Europe, Alexander has worked in Holland for The Netherlands Opera and Nationale Reisopera, in France with Opera de Lorraine and in Norway with Den Norske Opera. Key roles include Rodolfo, Cassio, Lensky, Tamino and Fenton.

At The Royal Opera, Alexander played ‘An Apprentice’ in Graham Vick’s celebrated revival of Die Meistersinger von Nürnberg (Wagner) under the baton of Sir Antonio Pappano. Other roles covered at The Royal Opera include ‘Nathanaël’ in Les Contes d’Hoffmann (Offenbach), ‘Policeman/Old Man/Student’ in The Nose (Shostakovich) and ‘Servant’ in The Exterminating Angel (Ades).

Alexander appears regularly as a soloist with some of the UK’s finest ensembles and choral societies. Concert highlights include Handel’s Messiah at Westminster Abbey, Mozart’s Requiem at The Sage, Gateshead, and Die Rosenkavalier (Ein Lakai) at the Bridgewater Hall under Sir Mark Elder.

Alexander is also a keen recitalist. In 2012 he made his London debut with Schubert’s Winterreise at Kings Place, collaborating with pianist Jamie Thompson. 

A passion for sport, in particular for tennis, has led Alexander to sing at many grand sporting arenas and for many great sporting legends. From tennis to squash and even running races, he has now set up a dedicated platform that combines opera with sport - Opera4Sport (www.opera4sport.com) He has performed at The Royal Albert Hall for the ATP Champions Tour, The Liverpool Tennis Tournament, as well as The Canary Wharf Squash Classic and The Lakeland 100.