Singers:

Frédéric Antoun
Paul Appleby
Piotr Beczala
Joseph Calleja
Allan Clayton
John Daszak & Brindley Sherratt (joint interview)
Gerald Finley
Catherine Foster
Hibla Gerzmava
Wallis Giunta
Christine Goerke
Paul Groves
Thomas Hampson
Hui He
Christian Immler
Ermonela Jaho
Tomasz Konieczny
Dominik Köninger
Lisette Oropesa
Saimir Pirgu
Luca Pisaroni
Marlis Petersen
Lyubov Petrova
Marcelo Puente
Christoph Prégardien
Chen Reiss (2019) (2020)
Matthew Rose
Golda Schultz
Brindley Sherratt
Krisztina Szabó

Conductors:

Johannes Debus
Jordan de Souza
Justin Doyle
Michail Jurowski
Vladimir Jurowski
Cornelius Meister
Vasily Petrenko (May 2019; November 2019 – Met Opera debut)
Alexander Shelley
Ralf Sochaczewsky

Soloists:

Gautier Capuçon (2018) (2019)
Lucas Debargue
James Ehnes
Daniel Hope
Johannes Moser
Alexandra Silocea
Yuja Wang

Philharmonix (Noah Bendix-Balgley, First Concertmaster, & Stephan Koncz, Cello, Berlin Philharmonic)

Company Leaders:

David Devan (General Director & President, Opera Philadelphia)
Andreas Homoki (Intendant, Opernhaus Zurich)
Barrie Kosky (Intendant, Komische Oper Berlin)
Michael Mori (Artistic Director, Tapestry Opera)
Alexander Neef (General Director, Canadian Opera Company), 2017; 2020 Coronavirus feature

Creative:

Lera Auerbach (Composer, Conductor, Writer, Artist)
Jack Bertinshaw (First Soloist, National Ballet of Canada)
Jessica Duchen (Librettist/Writer)
Matthew Jocelyn (Director / Writer)
Julie McIsaac (Theatre Artist, Dramaturge)
Douglas McNabney (Former Artistic Director, Toronto Summer Music Festival)
Edward Seckerson (Writer-Broadcaster)
Jacopo Spirei (Director; Part 1, Part 2)
Alaina Viau (Artistic Director, Loose Tea Music Theatre)
Rachael Hewer (director) and Tamzin Aitken (producer, VOPERA

Academic:

Mark Berry and Nicholas Vazsonyi (Co-editors, The Cambridge Companion to Wagner’s Der Ring des Nibelungen, Cambridge University Press, 2020)
Una Hunt (Professor, DIT Conservatory of Music and Drama; Soloist)
Jari Kallio (Music writer; Teacher)
Anna Shternshis (Al and Malka Green Professor in Yiddish Studies and the Director of the Anne Tanenbaum Centre for Jewish Studies at the University of Toronto; Executive Producer, Yiddish Glory: The Lost Songs Of World War II, Six Degrees Records, 2018)