- Rossini Gioachino, Composer
- Rotsiou Stella, Set Designer, Costume Designer
- Roufi Fofi, Dancer
- Rouggeri Carmen, Actress, Script Writer, Director
- Roupas George, Soloist, Bass
- Roussis Yiannis, GNO Chorus Member, Tenor
- Roussos Tassos, Librettist
- Roussou Z., Soloist, Soprano
- Rouvoli Sotiria, Actress
- Royer Alphonse, Librettist
- Rozan Nikolaos, Actor
- Rozas Ioannis, Soloist, Baritone
- Rucker Mark, Soloist, Baritone
- Ruffini Giovanni, Librettist
- Russo Kleanthe, Conductor
- Rutkowski Arnold, Soloist, Tenor
- Rydl Kurt, Soloist, Bass
- Rysanek Leonie, Soloist, Soprano
- Sabine Hogrefe, Soloist, Soprano
- Sabljić Mladen, Director
- Sacchi Franca, Soloist, Mezzo-soprano
- Safiropoulou Lenia, Soloist, Soprano
- Sahpekidis Pavlos, Actor
- Saint-Saëns Camille, Composer
- Sakellaridis Theophrastos, Composer
- Sakellarios Alekos, Libretto translation in Greek
- Sakellariou N.
- Sakellaropoulou Klavdia, GNO Chorus Member, Soloist
- Sakellaropoulou Popi, Dancer
- Sakkas Spyros, Soloist, Baritone, Composer
- Salabasopoulos Stavros, Soloist, Tenor
- Salatas Petros, Soloist, Baritone
- Salazar Inés, Soloist, Soprano
- Saldari Luciano, Soloist, Tenor
- Saligaros Spyros, Soloist, Baritone
- Salta Antigoni, Soloist, Soprano
- Salvadori Antonio, Soloist, Βaritone
- Samaras Spyridon-Filiskos, Composer
- Samartzis Angelos, Soloist, Tenor
- Samartzis Giorgos, GNO Chorus Member, Tenor
- Samartzis Nektarios, GNO Chorus Member, Tenor
- Sampsakis Pavlos, GNO Chorus Member, Bass
- Sandoval Hector, Soloist, Tenor
- Santi Tiziano, Set designer
- Sanz Aitziber, Costume designer
- Saragas Roberto, Dancer
- Saramandić Živan, Soloist, Bass
- Sarantidis Marios, Soloist, Bass-baritone
- Sarantopoulou Fofi, Soloist, Soprano
- Sarfatis Christos, Soloist, Bass
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