| Name | Functions | Event Dates | Events | Resources  | ||
|---|---|---|---|---|---|---|
| Maleesha Adjaye-Tabansi | Actor | 2013 - 2014 | 3 | |||
| Jojo Atwell | Actor | 2013 | 1 | |||
| Adam Arcuragi | Composer | 2013 | 1 | |||
| Rebecca Aldred | Actor | 2013 | 1 | |||
| Carl Ammon | Actor | 1901 | 2 | |||
| Justin Areola | Actor | 2013 | 1 | |||
| Sun Aina | Mask Maker | 2014 - 2021 | 8 | |||
| MacGregor Arney | Actor | 2014 | 1 | |||
| Gísli Alfreðsson | Actor | 1962 - 1978 | 2 | |||
| Anna Kristín Arngrímsdóttir | Actor | 1978 - 2003 | 3 | |||
| Jón K. Arnarson | Actor | 1978 | 1 | |||
| Thomas Dyani Akuru | Actor, Musician | 1989 | 3 | |||
| Bo Andersson | Actor | 1978 - 1986 | 2 | |||
| Tim Aspeling | Lighting Designer | 1985 | 1 | |||
| Charlene Anderson | Actor | 1985 | 1 | |||
| Natalie Adolphi | Actor | 1985 | 1 | |||
| Martin Aronstein | Lighting Designer | 1969 - 1986 | 4 | |||
| Jussi Ahtinen | Actor | 1985 | 1 | |||
| Norbert Aberle | Actor | 1985 - 2006 | 7 | |||
| Erich Auer | Actor | 1985 | 1 | |||
| Jacqueline Als | Actor | 1985 | 1 | |||
| Keith Agius | Actor | 1985 | 1 | |||
| Bart Acocella | Actor | 1985 | 1 | |||
| Günther Amberger | Actor | 1985 - 2006 | 6 | |||
| Bruno Alessandro | Actor | 1985 | 2 | |||
| Lélia Abramo | Actor | 1965 - 1985 | 2 | |||
| Margarethe Anders | Actor | 1897 | 1 | |||
| Suzanne Aubert | Actor | 2014 - 2016 | 12 | |||
| Carin Andersson | Actor | 1985 | 2 | |||
| Sam Appleby | Composer | 1985 | 1 | |||
| Alziro Azevedo | Costume Designer | 1987 | 2 | |||
| João Acir | Lighting Designer | 1987 | 2 | |||
| Betsy Adams | Lighting Designer | 1986 | 1 | |||
| Jacob Ahmadi-Robinson | Actor | 2014 | 1 | |||
| Alex Auer | Actor | 1986 | 1 | |||
| Dorli Amstutz | Actor | 1986 | 1 | |||
| Ann-Marie Anttila | Costume Designer | 1984 | 1 | |||
| Björn Allard | Lighting Designer | 1984 | 1 | |||
| Martin Allemann | Actor | 1987 | 1 | |||
| Jürgen Arndt | Actor | 1984 | 1 | |||
| Claudia Arndt | Actor | 1984 | 1 | |||
| Anders Ahlbom | Actor | 1987 - 1998 | 2 | |||