- Campagnano Vasco, Soloist, Tenor
- Canepa Lorenza, Soloist, Soprano
- Čangalović Miroslav, Soloist, Bass
- Čangalović Miroslav, Soloist, Baritone
- Canonero Milena, Costume designer
- Cantini Lorenza, Director
- Caoduro Giorgio, Soloist, Baritone
- Capalbo Leonardo, Soloist, Tenor
- Cappuccilli Piero, Soloist, Baritone
- Capuana Franco, Conductor, Composer
- Carè Andrea, Soloist, Tenor
- Caria Marco, Soloist, Baritone
- Carignani Paolo, Conductor
- Carl Haffner, Librettist
- Curran Paul, Director
- Carré Michel, Librettist
- Carrer Pavlos (Paolo), Composer
- Carson James Robert, Director
- Carter Lucy, Lighting designer
- Carter William, Choreographer
- Caruso Tiziana, Soloist, Soprano
- Casado Germinal, Dancer, Choreographer, Actor, Director, Set Designer
- Casolla Giovanna, Soloist, Soprano
- Cassian Elena, Soloist, Mezzo-Soprano
- Castilione Enrico, Director
- Catana Sebastian, Soloist, Baritone
- Catania Salvatore, Soloist, Bass
- Cavallaro Angelo, Conductor
- Cecchele Gianfranco, Soloist, Tenor
- Černoch Pavel, Soloist, Tenor
- Simos Angelo, Soloist, Tenor
- Chalkias Antonis, Set designer, Costume designer
- Chalkousi Eleni, Actor
- Hamoudopoulos Demetrios, Musicologist, Ethnomusicologist, Music Critic
- Charalambopoulos Dimitris, Actor
- Charalambous Nikos, Director
- Charbonnet Jeanne-Michèle, Soloist, Soprano
- Charon Jean-Christophe, Conductor
- Chauvet Géraldine, Soloist, Mezzo-soprano
- Chauvet Guy, Soloist, Tenor
- Cheli Vinicio, Lighting Designer
- Chelton Nick, Light Designer
- Cherubini Luigi, Composer
- Chevalier Νicole, Soloist, Soprano
- Chiara Maria, Soloist, Soprano
- Chiotakis Stefanos, GNO Chorus Member, Tenor
- Chitty Allison, Set and costume designer
- Choir
- Christodoulakis George, Director
- Christodoulidis Michalis, Composer
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