| Morelli, Richard | Richard Morelli | Director | 1949 – 1959 | 3 | |
| Morrow, Helen | Helen Morrow | Actor | 1929 | 3 | |
| Moser, Wolfgang, | Wolfgang Moser | Designer | 1960 – 1961 | 3 | |
| Mueller, Johannes | Johannes Mueller | Sound Designer | 2006 – 2007 | 3 | |
| Müller, Gert | Gert Müller | Composer, Dramaturg | 1981 | 3 | |
| Müller, Manfred | Manfred Müller | Actor | 1965 | 3 | |
| Müller, Ursula | Ursula Müller | Costume Designer, Dancer, Designer | 1956 | 3 | |
| Murakami, Satomi | Satomi Murakami | Actor | 2006 – 2008 | 3 | |
| Murase, Sachiko | Sachiko Murase | Actor | 1928 – 1976 | 3 | |
| Murphy, John | John Murphy | Actor | 1971 – 2000 | 3 | |
| Murtagh-Monks, Annie | Annie Murtagh-Monks | Actor | 1982 | 3 | |
| Mutter, Johannita | Johannita Mutter | Costume Designer, Mask Maker | 2004 – 2014 | 3 | |
| Myers, Scott | Scott Myers | Sound Designer | 1996 – 1997 | 3 | |
| Manni, Tarmo, | Tarmo Manni | Actor | 1955 | 3 | |
| Magazzari, Ms., | Ms. Magazzari | Actor | 1891 | 3 | |
| Maraval, -, | - Maraval | Actor | 1921 | 3 | |
| Mitra, Tripti, | Tripti Mitra | Actor, Director | 1952 – 1958 | 3 | |
| Mörner, Dorothy, | Dorothy Mörner | Actor | 2002 – 2003 | 3 | |
| Møller, Hildur, | Hildur Møller | Actor | 1924 – 1934 | 3 | |
| Mayer, -, | - Mayer | Actor | 1891 – 1941 | 3 | |
| Milster, Folkert | Folkert Milster | Actor | 2005 – 2007 | 3 | |
| Meyboom, Margaretha, | Margaretha Meyboom | Translator | 1908 | 3 | |
| Malović, Jovana, | Jovana Malović | Actor | 2000 | 3 | |
| Mitchell, Charlotte | Charlotte Mitchell | Actor | 1981 | 3 | |
| Mizutani, Yaeko, | Yaeko Mizutani | Actor | 1921 – 1924 | 3 | |
| Marx, Emil, | Emil Marx | Actor, Director | 1898 | 3 | |
| Molaee, Reza | Reza Molaee | Actor | 2006 – 2010 | 3 | |
| Müller, Margarethe, | Margarethe Müller | Actor | 1895 – 1897 | 3 | |
| Müller, Emmy, | Emmy Müller | Actor | 1893 – 1897 | 3 | |
| Mietens, Pia, | Pia Mietens | Actor | 1932 | 3 | |
| Mitle, Max | Max Mitle | Lighting Designer | 2004 – 2013 | 3 | |
| Maiello, Teth | Teth Maiello | Actor | 2005 – 2006 | 3 | |
| Maschwitz, Carl, | Carl Maschwitz | Actor | 1932 | 3 | |
| Mer'ati, Javad | Javad Mer'ati | Costume Designer, Designer, Lighting Designer | 2006 | 3 | |
| Möller, Alda | Alda Möller | Actor | 1942 | 3 | |
| Masi, Elisa Berti, | Elisa Berti Masi | Actor | 1896 | 3 | |
| Mari, Mr., | Mr. Mari | Actor | 1896 | 3 | |
| Malthe, Lina V., | Lina V. Malthe (Lina V. Malthe) | Actor | 1870 – 1873 | 3 | |
| Malmgren, Mr., | Mr. Malmgren | Actor | 1875 – 1881 | 3 | |
| Müller, Herr, | Herr Müller | Actor | 1876 | 3 | |
| Miebach, -, | - Miebach | Actor | 1877 – 1880 | 3 | |
| Meyer, Frk., | Frk. Meyer | Actor | 1878 – 1879 | 3 | |
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