| Molander, Harald, | Harald Molander | Actor, Director, Translator | 1885 - 1944 | 48 | 1 |
| Müller, Ludvig, | Ludvig Müller | Actor, Director | 1897 - 1913 | 19 | 1 |
| Mærli, Terje, | Terje Mærli | Adaptation, Director, Producer | 1973 - 2007 | 221 | 1 |
| Menni, Fiorenza, | Fiorenza Menni | Actor, Costume Designer, Dramaturg | 1999 - 2002 | 30 | 1 |
| Meløy, Marianne, | Marianne Meløy | Actor | 1994 - 2010 | 2 | 1 |
| Maché, Katinka | Katinka Maché | Actor | 2010 | 6 | 1 |
| Massafra, Marco | Marco Massafra | Actor | 2010 | 1 | 1 |
| Mutale, Mazimba | Mazimba Mutale | Actor | 2010 | 1 | 1 |
| Minzi, Liu, | Liu Minzi | Actor | 2010 | 1 | 1 |
| Mantzius, Kristian, | Kristian Mantzius | Actor | 1870 | 2 | 1 |
| Mitterwurzer, Friedrich, | Friedrich Mitterwurzer | Actor | 1876 - 1897 | 12 | 1 |
| Munch, Edvard, | Edvard Munch | Designer | 1906 - 1966 | 9 | 1 |
| Moslet, Bibbi, | Bibbi Moslet | Adaptation, Dramaturg | 2003 - 2013 | 137 | 1 |
| Mørk-Eidem, Alexander, | Alexander Mørk-Eidem | Actor, Adaptation, Designer, Director | 1991 - 2016 | 32 | 1 |
| Mærli, Ragnhild, | Ragnhild Mærli | Adaptation, Dramaturg | 1994 - 2008 | 19 | 1 |
| Maurstad, Mari, | Mari Maurstad | Actor | 1985 - 2019 | 103 | 1 |
| Martinsen, Øystein, | Øystein Martinsen | Actor | 2003 - 2016 | 5 | 1 |
| Mostraum, Tone, | Tone Mostraum | Actor | 2004 - 2020 | 4 | 1 |
| Mønness, Ragnhild Arnestad, | Ragnhild Arnestad Mønness | Actor | 2009 - 2017 | 6 | 1 |
| Myrberg, Per | Per Myrberg | Actor | 1984 - 2013 | 6 | 1 |
| Mignon, Eloise | Eloise Mignon | Actor | 2011 - 2016 | 7 | 1 |
| Michalopoulou, Loukia | Loukia Michalopoulou | Actor | 2010 | 2 | 1 |
| Morris, Peter | Peter Morris | Actor | 1961 - 1973 | 2 | 1 |
| Meinhardt, Thomas | Thomas Meinhardt | Actor | 1981 - 2010 | 3 | 1 |
| Malcolm, Duncan | Duncan Malcolm | Actor | 2009 | 2 | 1 |
| Mortensen, Elisabeth | Elisabeth Mortensen | Actor | 2008 - 2010 | 2 | 1 |
| Marsini, Jerry | Jerry Marsini | Actor | 2009 | 1 | 1 |
| Mosbæk, Christian | Christian Mosbæk | Actor | 2009 | 33 | 1 |
| Murphy, Aaron | Aaron Murphy | Actor | 2003 - 2012 | 2 | 1 |
| Mount, George | George Mount | Actor | 2013 | 1 | 1 |
| Maltar, Zlatko | Zlatko Maltar | Actor | 2013 - 2016 | 4 | 1 |
| Maschek, Siegfried | Siegfried Maschek | Actor | 1987 - 2016 | 4 | 1 |
| Myhr, Lasse | Lasse Myhr | Actor | 2012 | 1 | 1 |
| Maalouf, Mireille | Mireille Maalouf | Actor | 2012 - 2018 | 32 | 1 |
| Mertl, Stephan | Stephan Mertl | Actor | 1997 - 2009 | 4 | 1 |
| Müller-Beck, Klaus | Klaus Müller-Beck | Actor | 2002 - 2007 | 4 | 1 |
| Martin, Thomas | Thomas Martin | Actor | 2003 - 2011 | 3 | 1 |
| Mohylová, Andrea | Andrea Mohylová | Actor | 2008 | 1 | 1 |
| Moore, Terry Edward | Terry Edward Moore | Actor | 2005 | 1 | 1 |
| Mikitišin-Gačić, Sanja | Sanja Mikitišin-Gačić | Actor | 2005 | 1 | 1 |
| Mulligan, Kate A. | Kate A. Mulligan | Actor | 2006 - 2008 | 2 | 1 |
| Maybank, Preston | Preston Maybank | Actor | 2006 | 1 | 1 |
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