- van Schayk Toer, Dancer, Choreographer, Sculptor, Set Designer
- Abagieff Aida, Soloist, Soprano
- Abartzoglou Despina, GNO Chorus Member, Soprano
- Abazis Thodoris, Composer, Director
- Abdrazakov Askar, Soloist, Bass
- Aceto Raymond, Soloist, Bass
- Adam Adolphe, Composer
- Adami Giuseppe, Librettist
- Adamis Michalis, Composer
- Adams John, Composer
- Afali Irini, GNO Chorus Member, Mezzo-Soprano
- Afanasenko Viktor, Soloist, Tenor
- Agache Alexanndru, Soloist, Baritone
- Agapiadis Agapios, Dancer
- Agathonos Anna, Soloist, Mezzo-soprano
- Angelopoulos Spyros, Soloist, Βaritone
- Aggeli Aggelos, Set designer, Costume designer
- Aggelopoulou Katerina, Set Designer
- Aggelopoulou Lydia, Soloist, Mezzo-soprano
- Aggelopoulou Natassa, Musician, Chorusmaster
- Agrafiotis Dimitris, Conductor
- Agresta Maria, Soloist, Soprano
- Agrigiannaki Tinthi, Dancer
- Aidali-Sapountzi Fani, Soloist, Soprano
- Ainsworth Colin, Soloist, Tenor
- Aivaliotis Theodore, GNO Chorus Member, Bass
- Akimov Yevgeny, Soloist, Tenor
- Akrioti-Kolioubakina Irina, Dancer, Choreographer
- Alvanou Maria, Choreographer
- Alden Christopher, Director
- Alden David, Director
- Aldrich Kate, Soloist, Mezzo-soprano
- Alekos Fassianos, Painter, Set Designer, Engraver
- Alessandro Camera, Set designer
- Alexandropoulos Charalambos, Soloist, Tenor
- Alexandropoulou Angeliki, GNO Chorus Member, Soprano
- Alexia Theodorakis, Set and Costume Designer
- Alexiadis Minas I., Composer, Pianist, Musicologist
- Alexiadou Sofia, Lighting designer
- Alexopoulos Ch., Soloist, Tenor
- Alexopoulou Anna, Soloist, Soprano
- Alexopoulou-Gasparinatou Yola, Soloist, Soprano
- Alfieri Valerio, Lighting Designer
- Alford Joseph, Choreographer
- Alissafis Chryssanthos, Pianist, Conductor
- Alkaiou Maria, Actress
- Almaguer Carlos, Soloist, Baritone
- Alnar Hasan Ferid, Conductor, composer
- Alvarez Alekos, Dancer
- Álvarez Marcelo, Soloist, Tenor
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