- MacMillan Sir Kenneth
- Madau-Díaz Antonello, Director
- Maddalena James, Soloist, Baritone
- Madikian Arda, Soloist, Mezzo-Soprano
- Magliveras Evangelos, Soloist, Baritone
- Magoulas Petros, Soloist, Bass
- Magrì Ivan, Soloist, Tenor
- Mayfatova Victoria, Soloist, Mezzo-Soprano
- Makri A., Soloist, Soprano
- Makridou Christina, Dancer
- Makrynioti Miranda, Soloist, Mezzo-Soprano
- Malagnini Mario, Soloist, Tenor
- Malakate Tina
- Malavasi Anna
- Maliamani Chrissa, Soloist, Soprano
- Malliagros Aris, Soloist, Baritone
- Malliaras Nikos
- Mamias Evangelos, Actor
- Mayrhofer Manfred, Conductor
- Maniatis Ioannis, GNO Chorus Member, Tenor
- Maniatis Vaggelis, Soloist, Baritone
- Manidaki Eva, Set Designer
- Manikas Louis, Soloist, Baritone
- Manistina Elena
- Manoledaki Ioanna
- Manoliadi Markella
- Manolopoulou Eleni, Set Designer, Costume Designer
- Manou E., Dancer
- Manou Rallou, Choreographer
- Manousos Antonios, Librettist
- Mansola Marianna, Soloist, Soprano
- Mantafounis Haris (Harilaos), Choreographer
- Mantafounis Yiannis, Dancer, Choreographer
- Mantoudis Pavlos, Painer, Set Designer
- Manuguerra Matteo, Soloist, Baritone
- Maragaki Anna, Soloist, Mezzo-Soprano
- Maragoudaki Katerina, Lighting designer
- Marambio Angela, Soloist, Soprano
- Maramis Dimitris, Composer, Librettist
- Marangopoulos Dimitris, Composer
- Marangou Elena, Soloist, Mezzo-soprano
- Maranti-Polymeropoulou Olga, Choreographer
- Maraziotis Nikolas
- Marcelino Benito, Dancer, Choreographer, Ballet instructor
- Marcinko Kerri, Soloist, Soprano
- Marcu Μihaela, Soloist, Soprano
- Mardešić Šime, Soloist, Tenor
- Marelli Marco Arturo, Director
- Maresta Giovanna, Costume Designer
- Margariti Myrsini, Soloist, Soprano
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