| Name | Functions | Event Dates | Events | Resources  | ||
|---|---|---|---|---|---|---|
| Dominick Argento | Composer | 1966 | 1 | |||
| Grace Ann Andreassi | Actor | 1966 | 1 | |||
| Dana Adams | Actor | 1966 | 1 | |||
| Ray Angell | Actor | 1966 | 1 | |||
| Margaret Albright | Actor | 1966 | 1 | |||
| Fred Allison | Lighting Designer | 1966 | 1 | |||
| George Axler | Actor | 1966 | 1 | |||
| Evelyn Arm-Frank | Costume Designer | 1966 | 1 | |||
| Claudia Am | Actor | 1966 | 2 | |||
| Leif Andersen | Sound Designer | 1961 - 1975 | 4 | |||
| Folke Abenius | Director | 1966 | 1 | |||
| Laila Andersson | Actor | 1966 - 1976 | 2 | |||
| Gunilla af Malmborg | Actor | 1966 | 1 | |||
| Andor Ajtay | Actor | 1966 | 1 | |||
| Liesel Alex | Actor | 1966 | 1 | |||
| Ruy Antunes | Director | 1966 | 1 | |||
| Jill Alexander | Actor | 1966 | 1 | |||
| Margita Ahlin | Actor | 1965 | 1 | |||
| Harry Ahlin | Actor | 1936 - 1965 | 6 | |||
| Vilma Ascherlová | Actor | 1960 - 1973 | 5 | |||
| James Avidon | Actor | 1965 | 1 | |||
| James Atwood | Actor | 1965 | 1 | |||
| Erwin Arlt | Director | 1965 | 1 | |||
| Frank Anzalone | Actor | 1965 | 2 | |||
| Joe Aveline | Lighting Designer | 1965 | 1 | |||
| Jaroslava Adamová | Actor | 1965 | 1 | |||
| Gyula Abay | Actor | 1944 | 1 | |||
| Klaus Abramowsky | Actor | 1965 | 1 | |||
| Karin Anselm | Actor | 1965 | 1 | |||
| Alan Alpert | Actor | 1965 - 1966 | 2 | |||
| Vicente Acedo | Actor | 1965 | 1 | |||
| Dorothy Alvini | Actor | 1965 | 1 | |||
| Zygmunt Apostol | Actor | 2001 - 2002 | 4 | |||
| Rene Adamek | Actor | 2002 | 1 | |||
| Frank Aselmann | Actor | 2002 | 1 | |||
| Wolfram Apprich | Director | 2000 - 2014 | 16 | |||
| Silvia Alves | Costume Designer | 2002 | 3 | |||
| Luís Alberto | Actor | 2002 | 4 | |||
| Adriana Aboim | Actor | 2002 | 6 | |||
| Peter Arnold | Dramaturg | 2002 - 2004 | 33 | |||
| Silvia Azzoni | Actor | 2002 - 2004 | 6 | |||
| Anton Alexandrov | Actor | 2002 - 2004 | 2 | |||