| 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 | |
| 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 | |
| McHallem, Chris | Chris McHallem | Actor | 2003 - 2017 | 2 | |
| 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 | |
| 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 | |
| Meinhardt, Sabine | Sabine Meinhardt | Costume Designer | 2001 - 2004 | 2 | |
| Mandell, Ellen | Ellen Mandell | Composer, Sound Designer | 2004 | 2 | |
| Mikulková, Gabriela | Gabriela Mikulková | Actor | 1999 - 2008 | 2 | 4 |
| Minetti, Daniel | Daniel Minetti | Actor | 2004 | 2 | |
| Mňahončák, Martin | Martin Mňahončák | Actor | 2008 | 2 | |
| Mata, Olga | Olga Mata | Actor | 2004 | 2 | |
| Maldonado, Manuel | Manuel Maldonado | Sound Designer | 2004 | 2 | |
| Maier, Andreas | Andreas Maier | Actor | 2004 - 2005 | 2 | |
| Merrylees, Nick | Nick Merrylees | Lighting Designer | 2004 | 2 | |
| McConaghy, Sean | Sean McConaghy | Actor | 2004 - 2021 | 2 | |
| Maratrat, Léo | Léo Maratrat | Actor | 2004 | 2 | |
| Moise, Candice | Candice Moise | Designer, Lighting Designer | 2004 | 2 | |
| Minh, Tran | Tran Minh | Choreographer | 2004 - 2006 | 2 | |
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