| McEntee, Frank, | Frank McEntee | Actor, Director | 1921 | 2 | |
| Montagnoli, Raffaele, | Raffaele Montagnoli | Actor | 1996 | 2 | |
| Marino, Gian Paolo, | Gian Paolo Marino | Actor | 1996 | 2 | |
| Matthiessen, Joam | Joan Matthiessen | Actor | 1989 | 2 | |
| Min, Zhang | Zhang Min | Director | 1935 | 2 | |
| McDonnell, P.J., | P. J. McDonnell (P.J. McDonnell) | Actor | 1923 | 2 | |
| Merz, ?, | ? Merz | Actor | 1918 - 1919 | 2 | |
| Murakami, Yuji | Yuji Murakami | Dramaturg, Sound Designer | 2006 - 2008 | 2 | |
| Munroe, John, | John Munroe | Lighting Designer | 1981 - 2004 | 2 | |
| Mayer, José | José Mayer | Actor | 1994 - 2002 | 2 | |
| Merő, Béla | Béla Merő | Director | 2005 - 2010 | 2 | |
| Müller, Lolo, | Lolo Müller | Actor | 1896 - 1897 | 2 | |
| Moses, Carina | Carina Moses | Actor | 2009 - 2011 | 2 | |
| Mikkola, Juhani | Juhani Mikkola | Lighting Designer | 1981 - 1995 | 2 | |
| Manto, Erja, | Erja Manto | Actor | 1992 - 1994 | 2 | |
| Maher, Matthew | Matthew Maher | Actor | 2011 - 2020 | 2 | 2 |
| Matthíasson, Ari | Ari Matthíasson | Actor | 1993 | 2 | |
| Müller, Eva Verena | Eva Verena Müller | Actor | 2011 - 2012 | 2 | |
| Miller, Gordon | Gordon Miller | Actor | 2011 | 2 | |
| McIntosh, Duncan | Duncan McIntosh | Translator | 2011 | 2 | |
| McCluer, Carol | Carol McCluer | Actor | 2001 - 2009 | 2 | |
| Melato, Mariangela | Mariangela Melato | Actor | 2011 | 2 | |
| Martinez, Derly | Derly Martinez | Lighting Designer, Sound Designer | 1945 | 2 | |
| Mahmood, Barez Majeed, | Barez Majeed Mahmood | Actor, Director | 2011 | 2 | |
| Main, Carolina | Carolina Main | Actor | 2010 - 2011 | 2 | |
| Merritt, Michael | Michael Merritt | Designer | 1973 - 1991 | 2 | |
| Micheel, Gerd, | Gerd Micheel | Actor | 1956 - 1958 | 2 | |
| Mellies, Wolfgang | Wolfgang Mellies | Actor | 1956 - 1958 | 2 | |
| Mellies, Eberhard | Eberhard Mellies | Director | 1956 - 1958 | 2 | |
| Mauss, Brigitte | Brigitte Mauss | Costume Designer | 1956 - 1958 | 2 | |
| Müller, Lia | Lia Müller | Actor | 2011 | 2 | |
| Makhdoomi, Roham | Roham Makhdoomi | Actor, Director | 2006 | 2 | |
| Mohebbi, Nima | Nima Mohebbi | Actor | 2011 | 2 | |
| Monsen, Sophie, | Sophie Monsen | Actor | 1861 - 1862 | 2 | |
| Möller, -, | - Möller | Actor | 1856 | 2 | |
| Midling, Julius, | Julius Midling | Actor | 1864 - 1866 | 2 | |
| Mantzius, Kristian, | Kristian Mantzius | Actor | 1870 | 2 | 1 |
| Meier, Emma, | Emma Meier | Actor | 1872 | 2 | |
| Meves, Ernst Wilhelm, | Ernst Wilhelm Meves | Actor | 1878 - 1895 | 2 | |
| Martinsson, Herman, | Herman Martinsson | Actor | 1878 | 2 | |
| Morgenweg, Ludwig, | Ludwig Morgenweg | Actor | 1878 | 2 | |
| Malmgren, Sigismund, | Sigismund Malmgren | Actor | 1882 - 1883 | 2 | |
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