| Martínez, Jorge Andrés, López | Jorge Andrés López Martínez | Actor | 2008 - 2009 | 4 | |
| Möllerstedt, Magnus | Magnus Möllerstedt | Costume Designer, Designer | 2010 | 4 | |
| Manning, K. Lorrel | K. Lorrel Manning | Adaptation, Director | 2010 - 2017 | 4 | |
| Macheiner, Barbara | Barbara Macheiner | Actor | 2009 | 4 | |
| Montfort, Georg | Georg Montfort | Actor, Director | 1961 - 1965 | 4 | |
| Menke, Isabelle | Isabelle Menke | Actor | 2015 - 2017 | 4 | |
| Menon, Sherlyn | Sherlyn Menon | Actor | 2010 - 2017 | 4 | |
| Manheden, Stina | Stina Manheden | Actor | 2011 | 4 | |
| Mädler, Kathrin | Kathrin Mädler | Director, Dramaturg | 2011 - 2016 | 4 | |
| Mărculescu, Grigore | Grigore Mărculescu | Actor | 1920 - 1932 | 4 | |
| Momme, Jane | Jane Momme | Actor | 2011 - 2012 | 4 | |
| Mankell, Henning | Henning Mankell | Adaptation, Director | 2012 | 4 | |
| Moreno, Luis | Luis Moreno | Actor | 2011 | 4 | |
| Mann, Ellika | Ellika Mann | Actor | 1964 - 1968 | 4 | |
| Morelle, Cécile | Cécile Morelle | Actor | 2012 | 4 | |
| May, Val | Val May | Director | 1958 - 1971 | 4 | |
| Mitterer, Julius | Julius Mitterer | Actor | 1961 - 1981 | 4 | |
| Manninen, Mauno | Mauno Manninen | Designer, Director | 1951 - 1962 | 4 | |
| Münchhoff, Richard | Richard Münchhoff | Actor | 2011 - 2012 | 4 | |
| Møller, Christen | Christen Møller | Actor, Adaptation, Director | 1934 - 1964 | 4 | |
| Marzocchi, Franco | Franco Marzocchi | Dramaturg | 1959 | 4 | |
| Mauri, Glauco | Glauco Mauri | Actor | 1959 | 4 | |
| Merlin, Jesse | Jesse Merlin | Actor | 2013 | 4 | |
| Miletić, Marina | Marina Miletić | Actor | 2011 | 4 | |
| Medioni, Marie-Jeanne | Marie-Jeanne Medioni | Actor | 1958 | 4 | |
| Miehe-Renard, Louis | Louis Miehe-Renard | Actor | 1944 - 2003 | 4 | |
| Mazel, Otto | Otto Mazel | Actor | 1916 - 1918 | 4 | |
| Montgomery, Douglass | Douglass Montgomery | Actor, Adaptation | 1932 - 1952 | 4 | |
| Marre, Albert | Albert Marre | Actor, Director | 1949 - 1950 | 4 | |
| Morton, Anthony | Anthony Morton | Actor | 1962 | 4 | |
| Marsellou, Nelli | Nelli Marsellou | Actor | 1930 - 1945 | 4 | |
| Michala, Maria | Maria Michala | Actor | 2000 | 4 | |
| Malglaive, Gaëlle de | Gaëlle de Malglaive | Lighting Designer | 1997 - 1999 | 4 | |
| Mangel, Selma | Selma Mangel | Actor | 1922 - 1925 | 4 | |
| Miller, Huntington | Huntington Miller | Actor | 1940 | 4 | |
| Manolache, Ilinca | Ilinca Manolache | Actor | 2015 - 2016 | 4 | |
| Markham, David | David Markham | Actor | 1945 - 1961 | 4 | |
| Munna, Kazi Fazleh Elahi | Kazi Fazleh Elahi Munna | Actor | 2000 - 2001 | 4 | |
| Marić, Divna | Divna Marić | Actor | 2000 | 4 | |
| Mihaiu, Horaţiu | Horaţiu Mihaiu | Designer, Director | 2016 | 4 | |
| Municchi, Andrea | Andrea Municchi | Actor | 1977 | 4 | |
| McKeating, Cealach | Cealach McKeating | Assistant Director | 2017 | 4 | |
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