| Teatro Real | | | |
| Carlo Rizzi | Conductor | | |
| Thomas Jolly | Director | | |
| Bruno de Lavenère | Set Designer | | |
| Sylvette Dequest | Costume Designer | | |
| Antoine Travert | Lighting Designer | | |
| Orquesta Titular del Teatro Real | | | |
| Coro Titular del Teatro Real | | | |
| Josépha Madoki | Choreography | | |
| Jose Luis Basso | Choirmaster / chorus director | | |
| Nadine Sierra | Soprano | Juliette | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| Golda Schultz | Soprano | Juliette | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Javier Camarena | Tenor | Roméo | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| Ismael Jordi | Tenor | Roméo | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Héloïse Mas | Soprano | Stéphano | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| Carmen Artaza | Mezzo-soprano | Stéphano | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Roberto Tagliavini | Bass | Frère Laurent | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| Jean Teitgen | Bass | Frère Laurent | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Laurent Naouri | Baritone | Count Capulet | |
| Maciej Kwaśnikowski | Tenor | Tybalt | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| David Alegret | Tenor | Tybalt | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Sonia Ganassi | Mezzo-soprano | Gertrude, Juliette's nurse | |
| David Lagares | Bass | Duke of Verona | |
| Tomeu Bibiloni | Baritone | Pâris | |
| Pablo Martínez | Tenor | Benvolio, nephew of Montaigu | |
| Josep-Ramon Olivé | Baritone | Grégorio | |
| Andrzej Filończyk | Baritone | Mercutio | 2026 May 27, 30, Jun 01, 04, 07, 10, 13 |
| Carles Pachón | Baritone | Mercutio | 2026 May 28, 31, Jun 03, 06, 09, 12 |
| Javier Castañeda | Baritone | Frère Jean | |