- Szczęśniak Małgorzata, Set and Costume Designer
- Taddei Giuseppe, Soloist, Baritone
- Takova Darina, Soloist, Soprano
- Talanos C., Soloist, Baritone
- Talantopoulos Periklis, Soloist, Tenor
- Talbot Philippe, Soloist, Tenor
- Tamar Iano, Soloist, Soprano
- Tamiolaki Valentina, Lighting designer
- Tanner Carl, Soloist, Tenor
- Tarala Maria, GNO Chorus Member, Mezzo-Soprano
- Tarnanas Marinos, Soloist, Baritone
- Tarnanas Marinos, Soloist, Baritone
- Tassoulis Yorgos, Soloist, Baritone
- Di Tasso Yolanda, Soloist, Mezzo-Soprano
- Tassopoulis/Tassopoulos Anna, Soloist, Soprano
- Tate Nahum, Librettist
- Tatum Nancy, Soloist, Soprano
- Tebbutt Robin, Director
- Tengeri Lina, Soloist, Mezzo-Soprano
- Tenidis Vassilis, Composer
- Terranova Gianluca, Soloist, Tenor
- Terrason René, Set Designer, Director
- Terzakis Angelos, Writer
- Terzakis Georgios, Soloist, Bass, Actor
- Terzakis Zachos, Soloist, Tenor
- Terzis Eleftherios, Soloist, Baritone
- Terzis I., Soloist, Bass
- Testi Mattia, Director
- Thalassinou Chrysoula, Dancer
- Thalassinou Marianna, Dancer
- Thanassoula Christina, Lighting designer
- Thanos Christos, Musician, Actor
- Thanos Dionysios, Soloist, Tenor
- Thanos Loukas, Choreographer
- Theba Antonio, Soloist, Tenor
- Thebom Blanche, Soloist, Mezzo-Soprano
- Theocharis Konstantinos, Soloist, Tenor
- Theodorakis Mikis, Composer
- Theodoridis Yannis, Lighting Designer
- Theodoridis S., Soloist
- Theodoridou Sonia, Soloist, Soprano
- Theodoropoulos Athanasios, Lawyer, General Director of the Greek Parliament
- Theodosiadis Giorgos, Director
- Theodossiou Dimitra, Soloist, Soprano
- Theofanous Sophianna, Librettist
- Theologidis Frixos, Director
- Therianou Evaggelia, Set Designer
- Thoma Maria, Soloist, Soprano
- Thompson Adrian, Soloist, Tenor
- Thrasyvoulidou Mara, Soloist, Soprano
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