| Amsden, Robert | Robert Amsden | Assistant Director | 2013 | 1 | |
| Albu, István | István Albu | Assistant Director | 2008 | 1 | |
| Anderson, John | John Anderson | Assistant Director | 2017 | 1 | |
| Anastasof, Sanda | Sanda Anastasof | Assistant Director | 2018 | 2 | |
| Atiqah, Nurul | Nurul Atiqah | Assistant Director | 2018 | 1 | |
| Arveiler, Philippe | Philippe Arveiler | Assistant Director | 2011 | 3 | |
| Antoniou, Deborah | Deborah Antoniou | Assistant Director | 2015 | 1 | |
| Anning, Kim | Kim Anning | Assistant Director | 1984 | 1 | |
| Aldworth, Jack | Jack Aldworth | Assistant Director | 1978 | 1 | |
| Arvesen, Jon | Jon Arvesen | Assistant Director | 1975 | 1 | |
| Alberch, Laia | Laia Alberch | Assistant Director | 2022 - 2023 | 4 | |
| Arnaudon, Frank | Frank Arnaudon | Assistant Director | 2023 | 1 | |
| Aloisi , Poleo | Poleo Aloisi | Assistant Director | 2023 | 1 | |
| Alpa, Laura | Laura Alpa | Assistant Director | 2013 | 4 | |
| Alfieri, Mattia | Mattia Alfieri | Assistant Director | 2024 | 1 | |
| Alonge, Roberto | Roberto Alonge | Adaptation, Translator | 1987 - 2019 | 52 | 1 |
| Andersen, Helge | Helge Andersen | Adaptation, Producer | 1998 - 2006 | 7 | 1 |
| Adamson, Samuel | Samuel Adamson | Adaptation, Playwright, Producer, Translator | 2003 - 2019 | 15 | 1 |
| Akerholt, May-Brit | May-Brit Akerholt | Adaptation, Dramaturg, Translator | 1984 - 2022 | 27 | 1 |
| Adamczak, Szymon | Szymon Adamczak | Adaptation, Dramaturg | 2012 | 2 | |
| Augustin, Anita | Anita Augustin | Adaptation, Dramaturg | 2014 | 2 | |
| Anglade, Sandrine | Sandrine Anglade | Adaptation, Director, Translator | 2003 | 18 | 1 |
| Ahsanuzzaman, Ahmed | Ahmed Ahsanuzzaman | Adaptation, Director, Translator | 2006 - 2017 | 11 | 1 |
| Arbabi, Farnaz | Farnaz Arbabi | Adaptation, Director, Translator | 2013 | 3 | 1 |
| Alvarez-Ossorio, Carlos | Carlos Alvarez-Ossorio | Adaptation, Director, Producer | 2008 - 2012 | 5 | |
| Allen, Greg | Greg Allen | Adaptation, Director, Lighting Designer, Translator | 2005 - 2006 | 13 | 1 |
| Amundsen, Carl Morten | Carl Morten Amundsen | Adaptation, Director, Dramaturg | 1988 - 2020 | 39 | 2 |
| Altun, Hakan | Hakan Altun | Adaptation, Director, Dramaturg | 2007 | 3 | |
| Arrhed, Lars | Lars Arrhed | Adaptation, Director | 1997 - 1999 | 2 | 1 |
| Astner, Torbjörn | Torbjörn Astner | Adaptation, Director | 1999 - 2010 | 8 | 1 |
| Alvim, João de Mello | João de Mello Alvim | Adaptation, Director | 2007 | 2 | |
| 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 | |
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