| Alsaker, John-Kristian | John-Kristian Alsaker | Costume Designer, Designer | 1978 - 2015 | 89 | 1 |
| Amos, Cheryl | Cheryl Amos | Actor | 2004 | 1 | 1 |
| Amos, James | James Amos | Actor | 2004 | 1 | 1 |
| Anders, Sonja | Sonja Anders | Dramaturg | 1998 - 2014 | 18 | 1 |
| Anderson, Dennis | Dennis Anderson | Actor | 1983 | 1 | 1 |
| Anderson, Vikki | Vikki Anderson | Designer, Director, Producer | 2000 | 3 | 1 |
| Andersson, Bibi | Bibi Andersson | Actor | 1957 - 2009 | 13 | 1 |
| Andreassen, Marit Adeleide | Marit Adeleide Andreassen | Actor | 1992 - 2004 | 4 | 1 |
| Andree, Ingrid | Ingrid Andree | Actor | 1968 - 1985 | 4 | 1 |
| Anschütz, Ludwig | Ludwig Anschütz | Actor | 1951 - 1979 | 6 | 1 |
| Anthoff, Gerd | Gerd Anthoff | Actor | 1981 - 2007 | 4 | 1 |
| Antonsen, Anegrete | Anegrete Antonsen | Actor | 1885 - 1909 | 48 | 1 |
| Armand, Gisken | Gisken Armand | Actor | 1990 - 2021 | 110 | 1 |
| Arndt, Wilhelm | Wilhelm Arndt | Actor | 1886 - 1891 | 2 | 1 |
| Arnst, Hendrik | Hendrik Arnst | Actor | 1985 - 2000 | 3 | 1 |
| Arpe, Verner | Verner Arpe | Translator | 1965 - 2003 | 89 | 1 |
| Arrhed, Lars | Lars Arrhed | Adaptation, Director | 1997 - 1999 | 2 | 1 |
| Arvidsson, Gun | Gun Arvidsson | Actor | 1956 - 1997 | 6 | 1 |
| Ashmore, Peter | Peter Ashmore | Actor, Designer, Director, Producer, Sound Designer | 1941 - 1955 | 18 | 1 |
| Atkinson, Megan | Megan Atkinson | Actor | 2004 | 1 | 1 |
| Auchet, Marc | Marc Auchet | Translator | 1995 | 1 | 1 |
| Augesen, René | René Augesen | Actor | 2004 - 2007 | 2 | 1 |
| Axelsson, Konstantin | Konstantin Axelsson | Actor, Director | 1875 - 1902 | 53 | 1 |
| Aydlett, Sarah | Sarah Aydlett | Designer | 2002 | 1 | 1 |
| Azam, Naeem | Naeem Azam | Actor | 1992 - 2010 | 3 | 1 |
| Ahmed, Samina | Samina Ahmed | Actor | 1992 - 1994 | 2 | 1 |
| Adolf Hegh, Gustav | Gustav Adolf Hegh | Actor | 1957 - 2000 | 175 | 1 |
| Appel, Trine | Trine Appel | Actor | 2002 | 28 | 1 |
| Astner, Torbjörn | Torbjörn Astner | Adaptation, Director | 1999 - 2010 | 8 | 1 |
| Adamíra, Jiří | Jiří Adamíra | Actor | 1955 - 1993 | 3 | 1 |
| Ahmed, Tahmina | Tahmina Ahmed | Costume Designer, Designer, Director | 2006 | 3 | 1 |
| Arósio, Ana Paula | Ana Paula Arósio | Actor | 2001 - 2002 | 2 | 1 |
| Arroyo-Sucre, Rolando A. | Rolando A. Arroyo-Sucre | Costume Designer, Designer, Director | 1983 | 3 | 1 |
| Abingdon, W.L. | W. L. Abingdon (W.L. Abingdon) | Actor | 1891 - 1894 | 2 | 1 |
| Anson, G. W. | G. W. Anson | Actor | 1884 - 1909 | 2 | 1 |
| Abramson, Etta | Etta Abramson | Actor | 2011 | 1 | 1 |
| Alexiou, Nikos | Nikos Alexiou | Actor, Costume Designer, Designer, Lighting Designer | 1991 - 2010 | 4 | 1 |
| Abolins, Gina | Gina Abolins | Actor | 2010 - 2011 | 2 | 1 |
| Altefrohne, Hilke | Hilke Altefrohne | Actor | 2004 - 2011 | 7 | 1 |
| Amin, Nora | Nora Amin | Actor, Adaptation, Choreographer, Designer, Director, Dramaturg | 2009 - 2013 | 68 | 1 |
| Antar, Adel | Adel Antar | Actor | 2009 - 2010 | 6 | 1 |
| Andò, Flavio | Flavio Andò | Actor | 1902 - 1930 | 9 | 1 |
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