| Murenc, Andrej | Andrej Murenc | Actor | 2003 - 2016 | 2 | |
| Mann, Sharon | Sharon Mann | Actor | 1989 | 2 | |
| May, Victoria | Victoria May | Dancer | 2001 | 2 | |
| Mapelli, Claudio | Claudio Mapelli | Sound Designer | 1989 | 2 | |
| Metzger, Heike | Heike Metzger | Actor | 1989 | 2 | |
| Mongelli, Giovanni | Giovanni Mongelli | Actor | 2003 - 2005 | 2 | |
| Milhaud, Darius | Darius Milhaud | Composer | 2003 - 2005 | 2 | |
| Müller, Ulrike | Ulrike Müller | Actor | 2003 - 2004 | 2 | 1 |
| Martot, Pierre | Pierre Martot | Actor | 2003 | 2 | |
| Merle, Frank | Frank Merle | Adaptation, Director | 2003 | 2 | |
| Mägi, Laine | Laine Mägi | Actor | 2003 - 2022 | 2 | 2 |
| Marx, Marius | Marius Marx | Actor | 2003 | 2 | 1 |
| Maresca, Sydney | Sydney Maresca | Costume Designer | 2000 - 2001 | 2 | |
| Markussen, Erlend, Haugen | Erlend Haugen Markussen | Musical Director, Musician | 2015 | 2 | |
| Muszte, Anna | Anna Muszte | Actor | 1971 - 1975 | 2 | |
| Mouro, Luís | Luís Mouro | Costume Designer, Designer | 2015 | 2 | |
| McEvoy, Jennifer | Jennifer McEvoy | Actor | 2003 | 2 | |
| Månsson, Claes | Claes Månsson | Actor | 1989 - 1998 | 2 | 1 |
| Mallik, Linda | Linda Mallik | Musical Director | 1989 - 1998 | 2 | |
| Morellini, Marco | Marco Morellini | Actor | 2001 | 2 | |
| Maggi, Chicco | Chicco Maggi | Actor | 2001 | 2 | |
| Morell, Andreas | Andreas Morell | Director | 2001 - 2007 | 2 | 1 |
| McHallem, Chris | Chris McHallem | Actor | 2003 - 2017 | 2 | 1 |
| Mátray, László | László Mátray | Actor | 1999 - 2015 | 2 | |
| Mauer, Anika | Anika Mauer | Actor | 2003 | 2 | |
| Mbatha-Raw, Gugu | Gugu Mbatha-Raw | Actor | 2003 | 2 | |
| Murray, Catherine | Catherine Murray | Actor | 2003 | 2 | |
| Medina, Hugo | Hugo Medina | Actor | 2003 - 2011 | 2 | |
| McGregor-Laine, Susan | Susan McGregor-Laine | Actor | 2003 - 2007 | 2 | |
| Maloney, Peter | Peter Maloney | Actor | 2003 - 2011 | 2 | 1 |
| McNulty, Nancy | Nancy McNulty | Actor | 2003 | 2 | |
| Mähler Andersson, Johanna | Johanna Mähler Andersson | Actor | 2003 | 2 | |
| Moutafi, Elisavet | Elisavet Moutafi | Actor | 2003 - 2004 | 2 | |
| Mihály, Péter | Péter Mihály | Actor | 2005 | 2 | |
| Meisitz, Fáni | Fáni Meisitz | Actor | 2005 | 2 | |
| Mühle, Stefanie | Stefanie Mühle | Actor | 2003 - 2005 | 2 | |
| Miko, Lukas | Lukas Miko | Actor | 1999 - 2003 | 2 | |
| Moritz, Josina | Josina Moritz | Actor | 2003 - 2004 | 2 | |
| Machačíková, Markéta | Markéta Machačíková | Adaptation, Dramaturg | 2010 | 2 | |
| Muchametgaleeva, Luiza | Luiza Muchametgaleeva | Actor | 2003 - 2005 | 2 | |
| Močalov, Denis | Denis Močalov | Actor | 2003 - 2005 | 2 | |
| Mauss, Claudia | Claudia Mauss | Lighting Designer | 2003 | 2 | |
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