| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Aslı Arslan | Actor, Assistant Director | 2008 | 2 | |||
| Faruk Arnautović | Actor, Assistant Director | 1979 - 1983 | 2 | |||
| Sanae Assif | Actor, Assistant Director | 2021 | 4 | |||
| Katerina Andreadi | Actor, Assistant Director, Director | 1928 - 1956 | 52 | |||
| Nicolai Abrahamsen | Actor, Composer | 2003 - 2011 | 2 | |||
| Alan Atkinson | Actor, Composer | 1964 | 2 | |||
| Nicolás Aguirre | Actor, Composer | 2011 - 2013 | 20 | |||
| Vsevolod Aksenov | Actor, Composer | 1954 | 2 | |||
| Michelle Adler | Actor, Costume Designer | 1953 | 2 | |||
| Mathilde Altenborg | Actor, Costume Designer | 2009 - 2013 | 5 | |||
| Ellen Andreassen | Actor, Costume Designer | 1979 - 2015 | 53 | 1 | ||
| Pia Alnerius | Actor, Costume Designer | 1995 | 4 | |||
| Sarah Abouzelof | Actor, Costume Designer | 2015 | 3 | |||
| Amaka Aniagolu | Actor, Costume Designer | 2002 | 2 | |||
| Riina Ahonen | Actor, Costume Designer, Designer | 1967 - 2000 | 3 | |||
| Domitilla Amaral | Actor, Costume Designer, Designer | 1957 | 3 | 1 | ||
| Jaroslav Auerswald | Actor, Costume Designer, Designer, Director | 1912 - 1928 | 14 | |||
| Nikos Alexiou | Actor, Costume Designer, Designer, Lighting Designer | 1991 - 2010 | 4 | 1 | ||
| Andrea - | Actor, Dancer | 2003 | 3 | |||
| Sara Arnia | Actor, Dancer | 1959 - 1975 | 7 | |||
| Katrin Aebischer | Actor, Dancer | 1997 - 2005 | 6 | |||
| Merete Alfsen | Actor, Dancer | 1969 | 2 | |||
| Brânduşa Aciobăniţei | Actor, Dancer | 2005 | 3 | |||
| Ingalill Anneminne | Actor, Dancer | 1959 | 4 | |||
| Joyce Atkinson | Actor, Dancer | 1954 | 2 | |||
| Arslan Altın | Actor, Dancer | 1956 | 2 | |||
| Kristian Alm | Actor, Dancer | 2017 - 2020 | 5 | 1 | ||
| Eloy Aguilar | Actor, Dancer | 2012 - 2020 | 4 | |||
| Eric Adeney | Actor, Designer | 1911 - 1943 | 5 | |||
| Aureliano Antonelli | Actor, Designer | 1987 - 1990 | 4 | |||
| Torben Albret Kristensen | Actor, Designer | 2002 - 2004 | 3 | |||
| Edward Arshamian | Actor, Designer | 2003 | 2 | |||
| Mohsina Aktar | Actor, Designer | 2009 | 4 | 1 | ||
| Burak Acıl (Burak Acil) | Actor, Designer | 2007 | 2 | |||
| Lázaro Albarrán Álvarez | Actor, Designer | 1994 | 2 | |||
| Peter Ashmore | Actor, Designer, Director, Producer, Sound Designer | 1941 - 1955 | 18 | 1 | ||
| Malik Aslam | Actor, Designer, Lighting Designer | 2006 | 9 | |||
| Karol Adwentowicz | Actor, Director | 1901 - 1957 | 94 | 1 | ||
| Svend Aggerholm | Actor, Director | 1898 - 1926 | 9 | 1 | ||
| Ernst Ahlbom | Actor, Director | 1889 - 1923 | 9 | 1 | ||
| Stanca Alecsandrescu | Actor, Director | 1923 - 1926 | 7 | |||
| Hans Alva | Actor, Director | 1908 - 1953 | 6 | |||
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