| Mulqueen, Rachel | Rachel Mulqueen | Actor | 2009 | 2 | |
| Murray, Michael | Michael Murray | Adaptation, Director | 2009 | 2 | 1 |
| Musevski, Peter | Peter Musevski | Actor | 2008 - 2019 | 2 | |
| Monaghan III, Joseph P. | Joseph P. Monaghan III | Lighting Designer, Sound Designer | 2009 | 2 | |
| Müller, C. R. | C. R. Müller | Costume Designer, Designer | 2008 | 2 | 1 |
| Montemurro, JoAnn | JoAnn Montemurro | Actor, Costume Designer | 2009 | 2 | |
| Maho, Christin | Christin Maho | Actor | 2008 - 2009 | 2 | |
| Mumenthaler, Franz | Franz Mumenthaler | Actor | 2008 - 2009 | 2 | |
| Marchand, Jean-Pierre | Jean-Pierre Marchand | Actor | 2008 - 2009 | 2 | |
| Mirmiran, Nadja | Nadja Mirmiran | Actor | 2010 | 2 | |
| Mazloomi, Mir, Taher | Mir Taher Mazloomi | Actor | 2009 - 2010 | 2 | |
| Mitchell, Larry | Larry Mitchell | Actor | 2010 - 2017 | 2 | |
| Moran, Buzz | Buzz Moran | Sound Designer | 2010 - 2011 | 2 | |
| Murphy, Lainey | Lainey Murphy | Actor | 2010 | 2 | |
| Mittermeier, Markus | Markus Mittermeier | Musical Director, Musician | 2010 | 2 | |
| Matsuno, Jun | Jun Matsuno | Designer | 2010 | 2 | |
| Mitterstieler, Georg | Georg Mitterstieler | Actor | 2009 - 2017 | 2 | |
| Marriage, Oliver | Oliver Marriage | Actor | 2009 | 2 | |
| Moen, Tuva | Tuva Moen | Actor | 2015 - 2023 | 2 | |
| Meling, Ina | Ina Meling | Actor | 2009 | 2 | |
| Müller, Anja | Anja Müller | Costume Designer, Designer | 2009 - 2017 | 2 | |
| Mollo-Christensen, Sarah | Sarah Mollo-Christensen | Actor, Dancer | 2009 | 2 | |
| MacDonald, Laura Lynn | Laura Lynn MacDonald | Adaptation, Translator | 2009 | 2 | 1 |
| Malmberg, Karl | Karl Malmberg | Actor | 2010 - 2011 | 2 | 2 |
| Mägi, Arvi | Arvi Mägi | Actor | 2001 - 2010 | 2 | |
| Morris, Lewis | Lewis Morris | Actor | 2010 | 2 | |
| Marowsky, Karl | Karl Marowsky | Actor | 1909 - 1912 | 2 | |
| Mincic, Andreea | Andreea Mincic | Costume Designer, Designer | 2010 | 2 | |
| Marchand, Jacques | Jacques Marchand | Actor | 2010 | 2 | 1 |
| Melo, Jorge, Silva | Jorge Silva Melo | Director | 2010 | 2 | |
| Mendes, José Maria, Vieira | José Maria Vieira Mendes | Adaptation | 2010 | 2 | 1 |
| Mian, Julhash | Julhash Mian | Actor | 2009 | 2 | |
| Musch, Tom | Tom Musch | Designer | 2010 - 2018 | 2 | |
| Menardi, Wolfgang | Wolfgang Menardi | Costume Designer, Designer | 2016 | 2 | |
| Mannert-Brodowska, Elsa | Elsa Mannert-Brodowska | Actor | 1913 - 1921 | 2 | |
| Müller, Hans Günther | Hans Günther Müller | Actor | 1965 - 1978 | 2 | |
| Manz-Kozár, Andreas | Andreas Manz-Kozár | Actor | 2013 - 2015 | 2 | 1 |
| Müller, Tom | Tom Müller | Composer | 2011 | 2 | |
| MacDonagh, Jamie | Jamie MacDonagh | Actor | 2010 | 2 | |
| Metz, Stefan | Stefan Metz | Adaptation, Director | 2011 | 2 | 1 |
| Maciel, Carla | Carla Maciel | Actor, Costume Designer | 2011 | 2 | |
| McGrath, Joseph | Joseph McGrath | Actor, Designer | 2010 | 2 | 1 |
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