| Martyn, Greg | Greg Martyn | Actor | 1983 | 2 | 1 |
| Mirbach, Ingrid | Ingrid Mirbach | Actor | 1983 - 1984 | 2 | 1 |
| Marme, Philippe | Philippe Marme | Actor | 1972 | 2 | |
| Myin, Hervé | Hervé Myin | Actor | 1972 | 2 | |
| Meinertzhagen, Josef | Josef Meinertzhagen | Actor | 1959 - 1972 | 2 | |
| Mann, Euland | Euland Mann | Actor | 1933 - 1934 | 2 | |
| Masters, Robert | Robert Masters | Actor, Designer | 1933 - 1936 | 2 | |
| Møller, Paul | Paul Møller | Actor | 1957 - 1983 | 2 | |
| Mohn, Margaret | Margaret Mohn | Actor, Director | 1948 | 2 | |
| McGookin, Colin | Colin McGookin | Designer | 1983 | 2 | |
| Murdoch, Alan | Alan Murdoch | Composer | 1983 | 2 | |
| McAlister, Evelyn | Evelyn McAlister | Actor | 1983 | 2 | |
| Mulvenna, Declan | Declan Mulvenna | Actor | 1983 | 2 | |
| Mirski, Krastjo | Krastjo Mirski | Director, Translator | 1956 | 2 | |
| Mühler, Peter | Peter Mühler | Designer | 1958 - 1962 | 2 | |
| Madl, Ferdinand | Ferdinand Madl | Costume Designer | 1958 - 1962 | 2 | |
| Morley, Carol | Carol Morley | Actor | 1978 - 1988 | 2 | |
| Méndez, José | José Méndez | Costume Designer, Designer | 1981 | 2 | |
| Magálová, Kamila | Kamila Magálová | Actor | 1972 - 1983 | 2 | 1 |
| Matus, György | György Matus | Actor | 1983 - 1988 | 2 | |
| Minkov, Margarit | Margarit Minkov | Adaptation, Director | 1991 | 2 | |
| Mankovecký, Róbert | Róbert Mankovecký | Composer, Dramaturg | 1993 | 2 | |
| Morley, Christopher | Christopher Morley | Costume Designer, Designer | 1983 | 2 | 1 |
| Myklestad, Willy | Willy Myklestad | Lighting Designer | 1983 - 1988 | 2 | |
| Mueller, Bine | Bine Mueller | Actor | 1983 | 2 | |
| McGuigan, Marcy | Marcy McGuigan | Actor | 2000 | 2 | 1 |
| Mitra, Saoli | Saoli Mitra | Actor, Director | 2002 | 2 | 1 |
| Malcolm, Duncan | Duncan Malcolm | Actor | 2009 | 2 | 1 |
| McCormack, Catherine | Catherine McCormack | Actor | 2008 | 2 | 1 |
| Märker, Thomas | Thomas Märker | Lighting Designer | 2004 - 2008 | 2 | |
| Moss, Hannah | Hannah Moss | Adaptation, Director | 2008 | 2 | |
| Mortensen, Elisabeth | Elisabeth Mortensen | Actor | 2008 - 2010 | 2 | 1 |
| Mascall, Tim | Tim Mascall | Lighting Designer | 2009 | 2 | |
| Melles, Judith | Judith Melles | Actor | 1976 - 1994 | 2 | |
| Moore, Christopher | Christopher Moore | Actor, Sound Designer | 1983 - 1999 | 2 | 1 |
| Matthews, Dakin | Dakin Matthews | Actor | 1983 - 1986 | 2 | |
| Mess, Attila | Attila Mess | Actor | 2011 | 2 | 1 |
| Montenegro, Carlos | Carlos Montenegro | Actor | 2011 - 2012 | 2 | |
| Miranda, Miguel | Miguel Miranda | Composer | 2011 - 2018 | 2 | |
| Mardzoeki, Faiza | Faiza Mardzoeki | Adaptation, Translator | 2011 | 2 | 1 |
| Major, Melinda | Melinda Major | Actor | 2002 - 2011 | 2 | 1 |
| Manger, Burkhard | Burkhard Manger | Costume Designer, Designer | 1984 | 2 | |
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