| Adler, Leopold | Leopold Adler | Adaptation, Director | 1896 - 1911 | 9 | 1 |
| Auletta, Robert | Robert Auletta | Adaptation, Director | 1972 | 2 | |
| Alexander, Michael | Michael Alexander | Adaptation, Director | 1991 | 2 | 1 |
| Atanasiu, Mikaela | Mikaela Atanasiu | Adaptation, Director | 1982 | 2 | |
| Arco, Miguel del | Miguel del Arco | Adaptation, Director | 2014 | 2 | |
| Apke, Fred | Fred Apke | Adaptation, Director | 2002 | 2 | 1 |
| Altweger, Susanne | Susanne Altweger | Adaptation, Director | 2004 | 2 | |
| Augustin, Lukas | Lukas Augustin | Adaptation, Director | 2006 | 4 | |
| Arnarsson, Thorleifur Örn | Thorleifur Örn Arnarsson | Adaptation, Director | 2010 - 2021 | 5 | |
| Arghir, Olimpia | Olimpia Arghir | Adaptation, Director | 1987 - 1991 | 3 | |
| Amitin, Mark, Hall | Mark Hall Amitin | Adaptation, Director | 2007 | 2 | |
| Asenjo, Edy | Edy Asenjo | Adaptation, Director | 2019 | 2 | |
| Amitín, David | David Amitín | Adaptation, Director | 1971 - 1997 | 4 | 1 |
| Akca, Zeynep | Zeynep Akca | Adaptation, Director | 2020 | 2 | |
| Ayhllón, Luis | Luis Ayhllón | Adaptation, Director | 2022 | 2 | |
| Antal, Silard | Silard Antal | Adaptation, Designer, Director, Musical Director | 2011 | 4 | |
| Abrantes, José Mena | José Mena Abrantes | Adaptation, Designer, Director | 2005 | 3 | |
| Alme, Rolf | Rolf Alme | Adaptation, Designer, Director | 1993 - 2018 | 5 | |
| Acosta, Martín | Martín Acosta | Adaptation, Designer, Director | 2006 - 2007 | 3 | |
| Ageev, Vladimir | Vladimir Ageev | Adaptation, Composer, Director, Musical Director | 1999 - 2001 | 5 | 1 |
| Albertí, Xavier | Xavier Albertí | Adaptation, Composer, Director | 1993 - 1996 | 5 | |
| Armstrong, Craig | Craig Armstrong | Adaptation, Composer | 2012 | 4 | |
| Aune, Marit Moum | Marit Moum Aune | Adaptation, Choreographer, Director | 1994 - 2024 | 105 | 2 |
| Araya, Andrés, Pérez | Andrés Pérez Araya | Adaptation, Choreographer | 1980 | 2 | |
| Atta, Ansari | Ansari Atta | Adaptation | 1992 | 1 | |
| Adamson, Stuart | Stuart Adamson | Adaptation | 2012 | 1 | |
| Aaslestad, Petter | Petter Aaslestad | Adaptation | 1990 | 1 | 1 |
| Adam, Roel | Roel Adam | Adaptation | 1991 - 1992 | 14 | |
| Anders, Walter | Walter Anders | Adaptation | 1980 | 1 | |
| Abrhám, Josef | Josef Abrhám | Adaptation | 2012 | 3 | |
| Antoni Lluch, Joan | Joan Antoni Lluch | Adaptation | 2003 | 5 | |
| Anderson, Samuel | Samuel Anderson | Adaptation | 2009 | 1 | |
| Arluck, Elliot | Elliot Arluck | Adaptation | 1961 | 1 | 1 |
| Aamaas, Thorbjørn | Thorbjørn Aamaas | Adaptation | 2012 | 1 | |
| Apergis, Orfeas | Orfeas Apergis | Adaptation | 2018 | 1 | |
| Anderson, Mark | Mark Anderson | Adaptation | 2019 | 1 | |
| Artigau, Marc | Marc Artigau | Adaptation | 2017 - 2020 | 2 | |
| Afşar, Tufan | Tufan Afşar | Adaptation | 2020 | 1 | |
| Aguilà, Aleix | Aleix Aguilà | Adaptation | 2015 - 2017 | 3 | |
| Arconada, Ángel | Ángel Arconada | Adaptation | 1965 | 1 | |
| Almieroa, Ramón | Ramón Almieroa | Adaptation | 1920 | 1 | |
| Asp, Hilda | Hilda Asp | Actor, Translator | 1883 - 1908 | 8 | 1 |
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