| Aubry, Sylvie | Sylvie Aubry | Costume Designer | 2012 - 2014 | 11 | |
| Almoslino, Edith | Edith Almoslino | Costume Designer | 1976 | 1 | |
| Ariana, Inês | Inês Ariana | Costume Designer | 2019 | 1 | |
| Abel, Marie | Marie Abel | Costume Designer | 2013 - 2014 | 25 | |
| Albrecht , Gerd | Gerd Albrecht | Conductor, Musical Director | 2007 | 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 | |
| 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 | |
| Askø, Arvid, | Arvid Askø | Composer, Musician | 2010 | 2 | |
| Asen, Norbert | Norbert Asen | Composer, Musician | 2008 | 2 | 1 |
| Anderson, Michael | Michael Anderson | Composer, Musical Director | 2003 | 2 | |
| Antrobus, David | David Antrobus | Composer, Director | 2012 | 2 | |
| Axworthy, Christopher | Christopher Axworthy | Composer | 1998 - 1999 | 3 | |
| Aubrecht, Markus | Markus Aubrecht | Composer | 2002 | 1 | |
| Adam, Adolphe, | Adolphe Adam | Composer | 1894 - 2011 | 3 | |
| Annecchino, Arturo | Arturo Annecchino | Composer | 1997 - 2003 | 10 | |
| Adachi, Motohiko | Motohiko Adachi | Composer | 1984 | 1 | |
| Alig, Helmut | Helmut Alig | Composer | 1953 | 1 | |
| Avramov, Assen | Assen Avramov | Composer | 1997 - 2018 | 3 | |
| Axen, Bent | Bent Axen | Composer | 1985 | 1 | |
| Azar, Farzad Varzande | Farzad Varzande Azar | Composer | 2006 | 1 | |
| Arends, A., | A. Arends | Composer | 1892 | 1 | |
| Amenabar, Juan, | Juan Amenabar | Composer | 1980 - 1981 | 2 | |
| Andersen, -, | - Andersen | Composer | 1903 | 2 | |
| Albrechtson, -, | - Albrechtson | Composer | 1903 - 1909 | 3 | |
| Alterhaug, Bjørn, | Bjørn Alterhaug | Composer | 1973 | 1 | |
| Aarsand, Magne, | Magne Aarsand | Composer | 1993 | 1 | |
| Aam, Vidar, | Vidar Aam | Composer | 1994 | 1 | |
| Aasheim, Hanne T., | Hanne T. Aasheim (Hanne T. Aasheim) | Composer | 2000 - 2007 | 2 | |
| Apocalyptica, -, | - Apocalyptica | Composer | 2003 - 2004 | 2 | |
| Allen, Lily, | Lily Allen | Composer | 2011 - 2012 | 10 | |
| Auber, -, | - Auber | Composer | 1916 | 1 | |
| Agersnap, Harald, | Harald Agersnap | Composer | 1924 | 1 | |
| Alm, Anders | Anders Alm | Composer | 1990 - 1992 | 20 | |
| Accolla, Francesco | Francesco Accolla | Composer | 1981 | 1 | |
| Arcuragi, Adam | Adam Arcuragi | Composer | 2013 | 1 | |
| Appleby , Sam | Sam Appleby | Composer | 1985 | 1 | |
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