- Makri A., Soloist, Soprano
- Makridou Christina, Dancer
- Makrynioti Miranda, Soloist, Mezzo-Soprano
- Malagnini Mario, Soloist, Tenor
- Malakate Tina, Soloist, Soprano
- Malavasi Anna, Soloist, Mezzo-Soprano
- Maleiro Luiz Fernando, Conductor
- Maliamani Chrissa, Soloist, Soprano
- Malliagros Aris, Soloist, Baritone
- Maliaras Nikos, Musicologist, University Teaching Staff
- 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, Soloist, Mezzo-Soprano
- Manolakis Yannis, GNO Chorus Member, Tenor
- Manoledaki Ioanna, Set and Costume Designer
- Manoliadi Markella, Choreographer
- Manolopoulou Eleni, Set Designer, Costume Designer
- Manou E., Dancer
- Manou Rallou, Choreographer
- Manouskos Yorgos
- 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
- Maragidis N., Soloist
- 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 Nicolas, Soloist, Tenor
- 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
- Margaritis Alkiviadis, Journaist, Educator
- Margaritis Fragiscos, Musician, Violonist
- Margas Theodore, Lighting designer
- Mariani Lorenzo, Director
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