| Aavas | Aavas - | Composer, Sound Designer | 2003 - 2010 | 18 | |
| Alldridge, Duncan | Duncan Alldridge | Composer, Sound Designer | 2002 | 2 | |
| Arthurs, Andy | Andy Arthurs | Composer, Sound Designer | 2007 | 2 | |
| Andersson, Dan | Dan Andersson | Composer, Sound Designer | 2008 | 2 | |
| Andersen, Kristian Eidnes | Kristian Eidnes Andersen | Composer, Sound Designer | 2022 | 2 | |
| Artz, Karl Maria | Karl Maria Artz | Conductor | 1936 | 1 | |
| Arnoldi, Guido | Guido Arnoldi | Conductor | 1936 | 1 | |
| Antal, Mátyás | Mátyás Antal | Conductor | 1971 | 1 | |
| Atamer, Nesrin | Nesrin Atamer | Conductor | 1975 | 1 | |
| Afferni, Ugo | Ugo Afferni | Conductor | 1912 | 1 | |
| Alexander, Peter | Peter Alexander | Conductor | 2022 | 1 | |
| Alekseenok, Vitali | Vitali Alekseenok (Віталь Алексяёнак) | Conductor | 2024 | 1 | |
| Andreaoli, Giovanni | Giovanni Andreaoli | Conductor | 2024 | 1 | |
| Albrecht, Gerd | Gerd Albrecht | Conductor, Musical Director | 2007 | 2 | |
| Adshead, Patricia | Patricia Adshead | Costume Designer | 1994 | 1 | |
| Akimova, Irina | Irina Akimova | Costume Designer | 1999 | 1 | |
| Alberti, Karin | Karin Alberti | Costume Designer | 1979 - 1983 | 2 | |
| Aston, Mary-Anne | Mary-Anne Aston | Costume Designer | 1981 | 1 | |
| Alam, Shehrezade | Shehrezade Alam | Costume Designer | 1992 - 1994 | 2 | |
| Aldredge, Theoni V. | Theoni V. Aldredge | Costume Designer | 1960 - 1982 | 8 | |
| Andresen, Wenche Solgård | Wenche Solgård Andresen | Costume Designer | 1992 - 1994 | 5 | |
| Abbott, Tiffany | Tiffany Abbott | Costume Designer | 2007 - 2011 | 2 | |
| Anderson, Shannon | Shannon Anderson | Costume Designer | 2011 | 1 | |
| Anderson, Katarina | Katarina Anderson | Costume Designer | 2000 | 1 | |
| Amundsen, Inger G. | Inger G. Amundsen | Costume Designer | 2000 | 1 | |
| Antonsen, Gunn | Gunn Antonsen | Costume Designer | 2002 | 2 | |
| Anda, Ragnhild | Ragnhild Anda | Costume Designer | 2007 | 1 | |
| Aasheim, Ane | Ane Aasheim | Costume Designer | 2008 - 2016 | 6 | |
| Ahrens, Gesine | Gesine Ahrens | Costume Designer | 1973 | 1 | |
| Armani, Giorgio | Giorgio Armani | Costume Designer | 1998 - 2008 | 26 | |
| Austin, Nan | Nan Austin | Costume Designer | 1981 - 1997 | 2 | |
| Anýžová, Helena | Helena Anýžová | Costume Designer | 1972 - 1983 | 3 | |
| Axelsson, Anne-Christine | Anne-Christine Axelsson | Costume Designer | 1998 | 1 | |
| Abbas nia, Azar | Azar Abbas nia | Costume Designer | 2009 | 1 | |
| Atik, Ken | Ken Atik | Costume Designer | 2011 | 1 | |
| Azevedo, Alziro | Alziro Azevedo | Costume Designer | 1987 | 2 | |
| Anttila, Ann-Marie | Ann-Marie Anttila | Costume Designer | 1984 | 1 | |
| Antoniotti, Lelia | Lelia Antoniotti | Costume Designer | 1987 - 1990 | 2 | |
| Aldridge, Amanda | Amanda Aldridge | Costume Designer | 1991 | 1 | |
| Anderson, Evelyn, Norton | Evelyn Norton Anderson | Costume Designer | 1956 | 1 | |
| Adeilinis, Nikos | Nikos Adeilinis | Costume Designer | 1991 | 1 | |
| Abrantes, Samuel | Samuel Abrantes | Costume Designer | 1994 | 1 | |
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