| Mencák, Břetislav | Břetislav Mencák | Translator | 1958 - 2012 | 12 | |
| Meyer, Karin | Karin Meyer | Actor | 1922 - 1940 | 12 | |
| Malmsjö, Jan | Jan Malmsjö | Actor | 1972 - 2006 | 12 | |
| Marowitz, Charles | Charles Marowitz | Adaptation, Director | 1978 - 1990 | 12 | |
| Ming, Ren | Ren Ming | Director | 2014 - 2020 | 12 | |
| Magnusdotter Solem, Marte | Marte Magnusdotter Solem | Actor | 2014 - 2020 | 12 | |
| Mouchel, Luce | Luce Mouchel | Actor | 2014 - 2016 | 12 | |
| Marggraf, Erhard | Erhard Marggraf | Actor | 1991 - 2003 | 12 | |
| Mignolli, Monica | Monica Mignolli | Actor | 1995 - 1996 | 12 | |
| Massari, Liliana | Liliana Massari | Actor | 1995 - 1996 | 12 | |
| Minis, Hadewych | Hadewych Minis | Actor | 2010 - 2012 | 12 | |
| Metaxa, Argyro | Argyro Metaxa | Composer | 1961 - 1997 | 12 | |
| Mergnat, Alain | Alain Mergnat | Actor | 2001 | 12 | |
| Mircovich, Natacha | Natacha Mircovich | Actor | 2001 | 12 | |
| Moumouris, Oliver | Oliver Moumouris | Actor | 2005 - 2006 | 12 | |
| Maar, Paul | Paul Maar | Adaptation, Translator | 2009 - 2012 | 12 | |
| M.G., Jyothish | Jyothish M.G. | Adaptation, Choreographer, Designer, Director | 2009 - 2012 | 12 | |
| Marquardt, Bernd | Bernd Marquardt | Actor | 2010 - 2011 | 12 | |
| Macri-Eftimiu, Agepsina | Agepsina Macri-Eftimiu | Actor | 1920 - 1941 | 12 | |
| McGinnis, Christian | Christian McGinnis | Actor | 2011 | 12 | |
| McCallops, Michael | Michael McCallops | Actor | 2011 | 12 | |
| Mitchell, Megan | Megan Mitchell | Actor | 2011 | 12 | |
| McGowan, Terah | Terah McGowan | Actor | 2011 | 12 | |
| Mandracchia, Manuela | Manuela Mandracchia | Actor | 2012 - 2020 | 12 | 4 |
| Manolescu, Ion | Ion Manolescu | Actor | 1914 - 1954 | 12 | |
| Munshi, Donna | Donna Munshi | Actor | 2016 - 2017 | 12 | |
| Mari, Pasquale | Pasquale Mari | Lighting Designer | 1999 - 2021 | 12 | |
| Mest, Aurélie | Aurélie Mest | Actor, Costume Designer, Director | 2016 - 2017 | 12 | |
| Mailliard, Véronique | Véronique Mailliard | Actor | 2010 - 2011 | 12 | |
| Mell, Maria | Maria Mell (Maria Mell) | Actor | 1909 - 1952 | 13 | |
| MacHugh, Tina | Tina MacHugh (Tina MacHugh) | Lighting Designer | 1990 - 2000 | 13 | |
| Masi, N. | N. Masi (N. Masi) | Actor | 1892 - 1894 | 13 | |
| Marussig, Fru | Fru Marussig (Fru Marussig) | Actor | 1892 - 1908 | 13 | |
| Marikos, Athanasios | Athanasios Marikos (Athanasios Marikos) | Actor | 1896 - 1928 | 13 | |
| Müller-Hanno, Otto | Otto Müller-Hanno (Otto Müller-Hanno) | Actor, Director | 1916 - 1938 | 13 | |
| Michnowska, Stefania | Stefania Michnowska (Stefania Michnowska) | Actor | 1906 - 1924 | 13 | |
| Mathisen, Gørli | Gørli Mathisen (Gørli Mathisen) | Actor | 1971 - 2000 | 13 | |
| Meren, Turid | Turid Meren (Turid Meren) | Actor | 1989 - 1998 | 13 | |
| McColl, Colin | Colin McColl (Colin McColl) | Actor, Director | 1969 - 2017 | 13 | |
| Mittet, Hans Marius Hoff | Hans Marius Hoff Mittet (Hans Marius Hoff Mittet) | Actor | 1999 - 2019 | 13 | |
| Münzner, Susanne | Susanne Münzner (Susanne Münzner) | Costume Designer, Designer | 2004 - 2015 | 13 | |
| Morand, Philippe | Philippe Morand | Director | 1993 | 13 | |
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