| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Mitsugu Asanuma | Lighting Designer | 1978 - 1984 | 2 | |||
| Jacques Alary | Lighting Designer | 1978 | 1 | |||
| Angela Ancona | Lighting Designer | 1984 | 1 | |||
| Carlos Arce | Lighting Designer | 1992 | 1 | |||
| Önder Arık (Onder Arik) | Lighting Designer | 1982 | 1 | |||
| Elin Therese Aksnes | Lighting Designer | 2015 | 1 | |||
| Bob Anderson | Lighting Designer | 1964 | 1 | |||
| Jo Averill-Snell | Lighting Designer | 2019 | 1 | |||
| Tal Amir | Lighting Designer | 2020 | 1 | |||
| Nona Asensio | Lighting Designer | 2008 - 2011 | 8 | |||
| Denis Asimov | Lighting Designer | 2020 | 1 | |||
| Moosa Alhagh | Lighting Designer | 2006 | 1 | |||
| Jamshid Akbarzadeh | Lighting Designer | 2019 | 1 | |||
| Ignacio Apolo | Dramaturg | 2001 | 1 | |||
| Victoria Abrash | Dramaturg | 1993 | 1 | |||
| Sonja Anders | Dramaturg | 1998 - 2014 | 18 | 1 | ||
| Karim Ameur | Dramaturg | 1995 | 1 | |||
| Berit Anmar | Dramaturg | 1978 - 1991 | 22 | |||
| Peter Arnold | Dramaturg | 2002 - 2004 | 33 | |||
| Christina Alexandridis | Dramaturg | 2000 - 2002 | 3 | |||
| Martin Apelt | Dramaturg | 2001 | 1 | |||
| Anita Augustin-Huber | Dramaturg | 2003 | 2 | |||
| Rita Abody | Dramaturg | 2015 | 1 | |||
| Catherine Ailloud-Nicolas | Dramaturg | 2007 - 2022 | 11 | |||
| Susanne Abbrederis | Dramaturg | 2008 | 1 | |||
| Alexandra Althoff | Dramaturg | 2009 - 2010 | 4 | |||
| - Ashley | Dramaturg | 2009 - 2012 | 3 | |||
| Katarina Aronsson | Dramaturg | 2011 | 1 | |||
| Marion Ammicht | Dramaturg | 2016 | 1 | |||
| Michaela Angelopoulos | Dramaturg | 2012 | 1 | |||
| Gregor Acuna | Dramaturg | 2017 | 1 | |||
| Hans J. Ammann | Dramaturg | 1999 | 1 | |||
| Mukaddes Anğay | Dramaturg | 2017 | 1 | |||
| Neena Arndt | Dramaturg | 2018 | 1 | |||
| Gökhan Aktemur | Dramaturg | 2018 | 1 | |||
| Matthias Asboth | Dramaturg | 2022 | 1 | |||
| Antonis Antypas | Director, Translator | 1991 - 2004 | 3 | 1 | ||
| Kjell Amble | Director, Translator | 1966 - 1982 | 3 | 1 | ||
| Karolos Armenis | Director, Translator | 2014 - 2015 | 4 | |||
| Tetsuo Anzai | Director, Translator | 1997 - 2006 | 4 | 1 | ||
| Robert Allen | Director, Producer | 1952 - 2001 | 3 | |||
| Mehdi Amiri | Director, Producer | 2015 | 2 | |||