Brian Chatterton OAM was Musical Director of Co-Opera since its inception in 1990.  He was formerly Head of Performing Arts at the South Australian College of Advanced Education, Director of the Elder Conservatorium and Dean of Performing Arts at the University of Adelaide.  From 1973 to 1978 he worked with State Opera of SA as repetiteur, chorus master and musical director for many productions.  He regularly adjudicates at music eisteddfods and from 1972 – 1986 was a member of the music review panels of The Advertiser, The Adelaide Review, Australian Newspapers, the international magazine Opera and the monthly publication Opera-Opera.  Brian has studied or taught in Essex, Basle, Prague, Milan, Edmonton and London.

In 2000 he was awarded an OAM for his services to music and music education and in 2003 he was the recipient of a Centenary Medal. From 1991 – 2017 Brian has been Musical Director of over 1,000 Co-Opera performances covering every State and Territory in Australia. Additionally, from 2005 – 2012, Brian conducted over 30 performances in SE Asia, Germany, Austria and Switzerland to generous critical acclaim.

Bryan Griffiths was a full-time member of the horn section in the ASO from 2010-15. Before this he performed with the TSO, Sydney Sinfonia and Adelaide Art Orchestra. In 2015, Bryan was invited to conduct, teach and perform on horn at the Federal University of Santa Maria’s Festival Internacional de Inverno held in Southern Brazil. He is current Music Director of the Adelaide Wind Orchestra.

Stephen King performed with the Australian String Quartet from 2012-2021. Formerly, he was a member of the Australian Chamber Orchestra for nine years. He has performed with a large array of musicians in diverse venues and festivals around Australia and the world. With the ASQ, Stephen developed projects with First Nations artists and new Australian commissions and recordings.

Helen Ayres is a Doctoral graduate of the University of Melbourne and founding member of Seraphim Trio. Studied pedagogy at the Yehudi Menuhin School, teaches violin at Elder Conservatorium. Performed with the BBC Scottish Symphony and London Philharmonic Orchestra across England, Scotland, Germany, Austria and China. Helen is a past member of the MSO and has performed as guest principal with Orchestra Victoria and the TSO.

Emma Gregan plays Tutti Horn with the ASO and is an Alliance Brass artist. She holds a PhD in Musicology from the University of Adelaide and a B. Music with First Class Honours from the Queensland Conservatorium. Emma is also a composer specialising in writing for horn and brass. Her works have been performed across Australia, the USA, Europe, and Japan. She is also Artistic Director of the Adelaide Horn Jam.

Lynette Harris trained at the Elder Conservatorium, is a member of the State Opera of SA chorus performing in their productions of Parsifal, Cavalleria Rusticana, Pagliacci and La Traviata. She sang the role of Yvonne in the award-winning production of Sunday in the Park with George for the State Opera Young Artist’s program. Lyn has been involved in over 30 productions as a lead performer with many Adelaide theatre and musical companies. For Co-Opera Lyn has sung Mercedes in Carmen, Zerlina in Don Giovanni, Lois Lane in Kiss Me Kate!, Violetta in La Traviata, Musetta in La Boheme, Marcellina in The Marriage of Figaro, and Rosalinde in Die Fledermaus. She has performed with Co-Opera in Singapore, Malaysia, Germany, Switzerland and Austria.

Jeremy  Tatchell, New Zealand born bass-baritone, graduated with a Bachelor of Music in both viola and voice performance from the Canberra School of Music. For George Limb Opera in Canberra his roles included Don Alfonso (Cosi fan tutte), Figaro (Marriage of Figaro) and Mr Gedge (Albert Herring). Jeremy has gained much experience on the concert stage including performances of Stravinsky’s Les Noces and Mass, Bach’s St Mathew Passion, St John Passion and Magnificat, Faure’s Requiem, Haydn’s Creation and Handel’s Messiah. He has also performed as a violist with the Canberra Symphony Orchestra. Jeremy has performed a diverse number of roles with various companies around Australia including Falke (Die Fledermaus), Tonio (Pagliacci) and Zuniga (Carmen) for Co-Opera, which has also involved many performances in SE Asia and Continental Europe.

Lisa Cannizzaro graduated from the Elder Conservatorium with a Bachelor of Music [Honours] in Classical Voice. She also gained a Diploma of Languages [Japanese] and Graduate Diploma in Teaching. As well as gaining extensive employment experience  in specialist music education, Lisa continues to perform as a professional soprano soloist and ensemble member with State Opera SA, Adelaide Festival, Co-Opera, Norwood Symphony Orchestra, Big Sing, Art Song Canberra, Recitals Australia, Adelaide Hills Chamber Players, South Coast Choral and Arts Society and Emma Knights Productions. Major recent performances include Zerlina [Don Giovanni], Mabel [The Pirates of Penzance], soprano Soloist [Elijah], Proms Concert [Norwood Symphony Orchestra] and Iconic Inspirations [Arts Song Canberra].

David Visentin graduated from the Elder Conservatorium, Uni of Adel and  immediately performed many roles for the G&S Society. Later that year he joined Co-Opera for their inaugural interstate tours of the Magic Flute (Mozart) singing 1st Armed Man. In 2000 he moved to Sydney and added Alexis Pointdextre, The Sorcerer to his repertoire plus various roles in The Mikado, The Gondoliers, Yeoman of the Guard, Ruddigore and Iolanthe. He has performed principle roles in Don Giov anni (Mozart), L’occasione fa il Ladro and La Scala di Seta (Rossini), Owen Wingrave (Britten) and Il Tabarro (Puccini). Barber of Seville (Rossini) and Alfredo in La Traviata as well as tenor soloist in many oratorios.

Macintyre Howie Reeves is a singer and director who has performed in multiple Adelaide Festival productions, including Brett Dean’s Hamlet, Danny Elfman's Music from the Films of Tim Burton and Mozart’s Requiem directed by Romeo Castellucci. He has been a soloist in Mozart’s Requiem, Bach’s Matthäus-Passion, Handel’s Messiah and guest soloist for Adelaide Carols by Candlelight 70th anniversary. Macintyre has worked with many SA companies, including the G & S Society, Emma Knights Prodns, Co-Opera and State Opera of SA. Stage credits include: Lieutenant Barri in Sondheim’s Passion, The Major General in The Pirates of Penzance, The Father in Humperdinck’s Hansel and Gretel, The Page in Menotti’s Amahl and the Night Visitors, Mr. Lindquist in Sondheim’s A Little Night Music, Pish-Tush in The Mikado and Publio in Mozart’s La Clemenza di Tito for Co-Opera.