| Atamer, Nesrin | Nesrin Atamer | Conductor | 1975 | 1 | |
| Atamaniuk, Walter W. | Walter W. Atamaniuk | Actor | 1974 - 1983 | 8 | 1 |
| Atalla, Tara | Tara Atalla | Actor | 2017 | 1 | |
| Atalay, Hikmet | Hikmet Atalay | Actor | 1975 | 1 | |
| Atak, Hakan | Hakan Atak | Designer | 2009 | 1 | |
| Atač, Zlatko, Kauzlarić | Zlatko Kauzlarić Atač | Costume Designer, Designer | 1979 | 4 | |
| Aszalos, Géza | Géza Aszalos | Actor | 2012 - 2013 | 20 | |
| Asvik, Ingrid | Ingrid Asvik | Actor | 2006 | 1 | |
| Asunción Rivera, María | María Asunción Rivera | Actor | 1954 | 1 | |
| Astvik, Stefan | Stefan Astvik | Costume Designer | 1984 | 2 | |
| Astrup, Karoline | Karoline Astrup | Actor | 1993 | 1 | |
| Astrup, Henny | Henny Astrup | Actor | 1902 - 1908 | 10 | |
| Astrup, Emilie S. | Emilie S. Astrup | Actor | 2010 | 2 | |
| Astredo, Humbert, Allen | Humbert Allen Astredo | Actor | 1990 | 1 | 1 |
| Astor, Jupp | Jupp Astor | Actor | 1946 | 1 | |
| Aston, Mary-Anne | Mary-Anne Aston | Costume Designer | 1981 | 1 | |
| Aston, Claire | Claire Aston | Actor | 2021 | 1 | |
| Aston-Reese, David | David Aston-Reese | Actor | 1981 | 3 | 1 |
| Astner, Torbjörn | Torbjörn Astner | Adaptation, Director | 1999 - 2010 | 8 | 1 |
| Astley, Barbara | Barbara Astley | Actor | 1932 | 1 | |
| Astington, John | John Astington | Actor | 1978 | 1 | 1 |
| Astill, Sarah | Sarah Astill | Actor | 2011 | 1 | |
| Aştilean, Dan | Dan Aştilean | Actor | 1985 - 2006 | 5 | |
| Asteroth, Gisela | Gisela Asteroth | Actor | 1953 | 1 | |
| Astermark, Alexander | Alexander Astermark | Actor, Musician | 2001 | 2 | |
| Asteriadi, Ifigeneia | Ifigeneia Asteriadi | Actor | 1991 - 1995 | 2 | |
| Asten, René van | René van Asten | Actor | 1982 - 1984 | 2 | 1 |
| Asten, Lilly, von | Lilly von Asten | Actor | 1915 | 1 | |
| Astachov, Sergej | Sergej Astachov | Actor | 2001 | 1 | |
| Asta, Silvia | Silvia Asta | Actor | 2008 | 1 | |
| Assulin, Nadav | Nadav Assulin | Actor | 1999 | 1 | |
| Assogho, Cyrille | Cyrille Assogho | Actor | 2011 | 3 | |
| Asso, Pierre | Pierre Asso | Actor | 1952 | 1 | |
| Aßmer, A. | A. Aßmer | Actor | 1918 | 1 | |
| Aßmann, Robert | Robert Aßmann | Actor | 1910 - 1923 | 2 | |
| Assmann, Richard | Richard Assmann | Actor | 1911 | 1 | |
| Aßmann, Richard | Richard Aßmann | Actor | 1931 | 1 | |
| Aßmann, Reinhold | Reinhold Aßmann | Actor | 1905 | 1 | |
| Assmann, Hansjörg | Hansjörg Assmann | Actor | 1982 | 1 | |
| Assmann, Arno | Arno Assmann | Actor | 1977 | 1 | |
| Assman, Jost | Jost Assman | Costume Designer, Designer | 1979 - 1997 | 7 | |
| assistance, Choreographic | Choreographic assistance | | | | |
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