| Mader, Sabine | Sabine Mader | Costume Designer, Designer | 2000 - 2017 | 5 | |
| Martin, Nicholas | Nicholas Martin | Actor, Director | 1967 - 2001 | 5 | 1 |
| Maddigan, Angie | Angie Maddigan | Actor | 2004 - 2005 | 5 | |
| Marin, Georg | Georg Marin | Actor | 1989 | 5 | |
| Monteiro, Tobias | Tobias Monteiro | Actor | 2002 | 5 | |
| Maddox, Chris Erric | Chris Erric Maddox | Actor | 2002 | 5 | |
| Møller, Stian | Stian Møller | Actor | 2015 | 5 | |
| Moore, Margaret | Margaret Moore | Actor | 2003 | 5 | |
| Meriwether, Liz | Elizabeth Meriwether | Actor, Adaptation, Playwright | 2003 - 2024 | 5 | 1 |
| Møller, Erik | Erik Møller | Actor | 2015 | 5 | |
| Mathieu, Antoine | Antoine Mathieu | Actor | 2003 - 2004 | 5 | |
| Marcadé, Caroline | Caroline Marcadé | Choreographer | 2003 - 2004 | 5 | |
| Magyari, Etelka | Etelka Magyari | Actor | 2012 - 2013 | 5 | |
| Martínez, Pilar | Pilar Martínez | Actor | 2003 | 5 | |
| Moran, Derek | Derek Moran | Actor | 2004 | 5 | |
| Macdonald, Hilary | Hilary Macdonald | Costume Designer | 2004 | 5 | |
| Mason, Robin | Robin Mason | Musician | 2004 | 5 | |
| Mubarack, André | André Mubarack | Actor | 2004 - 2005 | 5 | |
| Mikalsen, Mona | Mona Mikalsen | Actor | 2004 | 5 | |
| Marioge, Philippe | Philippe Marioge | Designer | 2005 | 5 | 1 |
| Milfajtová, Sára | Sára Milfajtová | Actor | 2000 | 5 | |
| Mayr, Christel | Christel Mayr | Actor | 2005 - 2015 | 5 | 1 |
| Mocanu, Emilia | Emilia Mocanu | Actor | 1995 - 2010 | 5 | |
| Moldoveanu, Dan | Dan Moldoveanu | Actor | 1995 - 2010 | 5 | |
| Mainka, Marion | Marion Mainka | Actor | 2001 | 5 | |
| Mirbach, Klaus von | Klaus von Mirbach | Actor | 2001 | 5 | |
| Müller-Kuhl, Manfred | Manfred Müller-Kuhl | Actor | 2001 | 5 | 1 |
| Możdżerówna, Jadwiga | Jadwiga Możdżerówna | Actor | 1999 | 5 | |
| Muscă, Ion | Ion Muscă | Actor | 1972 | 5 | |
| Metzenrath, Gheorghe | Gheorghe Metzenrath | Actor | 1977 | 5 | |
| Moulin, Fabien | Fabien Moulin | Actor | 2007 - 2008 | 5 | |
| Mohamed, Hend | Hend Mohamed | Actor | 2006 | 5 | |
| Mohamed, Mustaf | Mustaf Mohamed | Actor | 2006 | 5 | |
| Mohamed, Ahmed | Ahmed Mohamed | Actor | 2006 | 5 | |
| Mohamed, Hashim | Hashim Mohamed | Musician | 2006 | 5 | |
| Moneem, Ayman Abdel | Ayman Abdel Moneem | Designer | 2006 | 5 | |
| Molina, Ángela | Ángela Molina | Actor | 2008 | 5 | |
| Malik, Abhishek | Abhishek Malik | Actor | 2015 | 5 | |
| Meyer, Susa | Susa Meyer | Actor | 2008 - 2017 | 5 | 1 |
| Mazbouh, Lilian Kyra | Lilian Kyra Mazbouh | Actor | 2008 | 5 | |
| McDonough, Tim | Tim McDonough | Actor, Adaptation, Director, Sound Designer | 1999 - 2009 | 5 | |
| Meier, Sybille | Sybille Meier | Dramaturg | 2008 - 2016 | 5 | |
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