| Münzer, Hermann | Hermann Münzer | Lighting Designer | 1992 - 2005 | 3 | |
| Mittelstaedt, Tessa | Tessa Mittelstaedt | Actor | 2003 - 2004 | 3 | 1 |
| Martin, Thomas | Thomas Martin | Actor | 2003 - 2011 | 3 | 2 |
| Mellor, Aubrey | Aubrey Mellor | Director, Translator | 1984 - 1989 | 3 | 1 |
| Markov, Plamen | Plamen Markov | Adaptation, Director | 1997 - 2010 | 3 | |
| Mönnich, Heiko | Heiko Mönnich | Designer | 2003 | 3 | |
| Mohr, Antonia | Antonia Mohr | Actor | 1998 - 2003 | 3 | 1 |
| Meenen, Uta | Uta Meenen | Costume Designer | 2003 - 2008 | 3 | |
| Møller, Sylvia | Sylvia Møller | Actor | 2015 | 3 | |
| Møller, Tonje | Tonje Møller | Actor | 2015 | 3 | |
| Manvich, Jen | Jen Manvich | Actor | 2001 | 3 | |
| Müller, Sebastian | Sebastian Müller | Actor | 2001 - 2003 | 3 | |
| Miklósy, Judit | Judit Miklósy | Actor | 1976 | 3 | |
| Mészáros, Károly | Károly Mészáros | Actor | 1989 | 3 | |
| Micoleau, Tyler | Tyler Micoleau | Lighting Designer | 2003 - 2009 | 3 | |
| Mossegård, Lena | Lena Mossegård | Actor | 1999 - 2006 | 3 | 1 |
| Mejzlík, Martin | Martin Mejzlík | Actor | 2000 - 2008 | 3 | |
| Marshall Whittaker, Jane | Jane Marshall Whittaker | Costume Designer | 2004 - 2005 | 3 | |
| Mordal, Anne-Grete | Anne-Grete Mordal | Actor | 2004 | 3 | |
| Mordal Konradsen, Emilie | Emilie Mordal Konradsen | Actor | 2004 | 3 | |
| Motsiou, Lina | Lina Motsiou | Costume Designer, Designer | 2004 - 2012 | 3 | |
| Mišurec, Karel | Karel Mišurec | Actor | 2000 | 3 | |
| Mustafić, Dino | Dino Mustafić | Director | 2013 - 2015 | 3 | |
| Mjaku, Bajrush | Bajrush Mjaku | Actor | 2013 - 2015 | 3 | |
| Mucaj, Bislim | Bislim Mucaj | Actor | 2013 - 2015 | 3 | |
| Morina, Adrian | Adrian Morina | Actor | 2013 - 2015 | 3 | |
| Mecwaldowski, Wojciech | Wojciech Mecwaldowski | Actor | 2005 - 2006 | 3 | |
| Mertens, Wim | Wim Mertens | Composer | 2005 | 3 | |
| Moreno, Missy | Missy Moreno | Actor | 2005 | 3 | |
| Macrin, Bujor | Bujor Macrin | Actor | 1995 - 2010 | 3 | |
| Meyer, Bettina | Bettina Meyer | Costume Designer, Designer | 2005 - 2012 | 3 | 1 |
| Maric, Dave | Dave Maric | Composer | 2005 - 2008 | 3 | |
| Meacher, Harry | Harry Meacher | Adaptation, Director | 2001 - 2007 | 3 | |
| Marcus, Edgar M. | Edgar M. Marcus | Actor | 1986 - 2009 | 3 | |
| Milas, Darko | Darko Milas | Actor | 1996 - 2006 | 3 | |
| Molloy, Simon | Simon Molloy | Actor | 2005 - 2006 | 3 | |
| Marshall, Tom | Tom Marshall | Actor | 2005 - 2010 | 3 | |
| Majling, Daniel | Daniel Majling | Dramaturg | 2007 - 2018 | 3 | |
| Merz, Markus | Markus Merz | Actor | 1999 - 2005 | 3 | |
| Maertens, Miriam | Miriam Maertens | Actor | 2005 | 3 | 1 |
| Moskal, Anna | Anna Moskal | Actor | 2006 - 2007 | 3 | |
| Magdziarz, Przemysław | Przemysław Magdziarz | Actor | 2006 - 2007 | 3 | |
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