| Mowrey, Terri | Terri Mowrey | Actor | 2007 | 1 | |
| Malých, Mrs., | Mrs. Malých | Actor | 1904 | 1 | |
| Magazzari, Ms., | Ms. Magazzari | Actor | 1891 | 3 | |
| Mazzanti, Ettore, | Ettore Mazzanti | Actor | 1891 | 21 | |
| Marien, Pierre | Pierre Marien | Actor | 1984 | 1 | |
| Malmierca, Álvaro | Álvaro Malmierca | Adaptation, Translator | 1999 | 2 | |
| Mazzarelli, - | - Mazzarelli | Actor | 1999 | 1 | |
| McDonald, Frank | Frank McDonald | Actor | 1971 | 4 | |
| Michałowski, Janusz | Janusz Michałowski | Actor | 1994 | 2 | |
| Masek, Vaclav, | Vaclav Masek | Actor | 1924 | 1 | |
| Mlakar, Dusan | Dušan Mlakar | Adaptation, Director | 1979 - 2012 | 9 | |
| Matul, Niko | Niko Matul | Designer | 1979 | 1 | |
| Myrkou, Tatiana | Tatiana Myrkou | Choreographer | 2008 | 1 | |
| Moreau-Lepine, Blanche | Blanche Moreau-Lepine | Actor | 1995 | 1 | |
| Monaci, Maria Grazia | Maria Grazia Monaci | Actor | 1955 | 2 | |
| Motley, - | - Motley | Costume Designer, Designer | 1936 | 34 | |
| McCormick, F.J., | F. J. McCormick (F.J. McCormick) | Actor | 1923 - 1929 | 5 | |
| MacAnna, Fiona | Fiona MacAnna | Actor | 1982 | 1 | |
| Meyerbeer, -, | - Meyerbeer | Composer | 1892 | 1 | |
| Mascagni, -, | - Mascagni | Composer | 1892 | 1 | |
| Michiels, -, | - Michiels | Composer | 1892 | 1 | |
| Maraval, -, | - Maraval | Actor | 1921 | 3 | |
| Mendizabal, Nelly, | Nelly Mendizabal | Actor | 1954 | 2 | |
| Merten, Thorsten | Thorsten Merten | Actor | 1994 - 1998 | 10 | |
| Milan, Fred | Fred Milan | Choreographer | 1977 | 1 | |
| Martin, Thomas | Thomas Martin | Actor | 1953 | 2 | |
| Mickelsen, David Kay, | David Kay Mickelsen | Costume Designer | 2005 | 1 | |
| Mercurio, Maria Giovanna, | Maria Giovanna Mercurio | Costume Designer | 1993 - 1994 | 2 | |
| Ming-chu, Maggie Shum | Maggie Shum Ming-chu | Composer | 2001 | 1 | |
| Murray, Nan, | Nan Murray | Actor | 1916 | 1 | |
| Meyer, -, | - Meyer | Actor | 1877 | 5 | |
| Müller, -, | - Müller | Actor | 1903 - 1918 | 4 | |
| Marchant, Nicolas | Nicolas Marchant | Designer | 2002 | 1 | |
| Mogendorf, Thomas | Thomas Mogendorf | Costume Designer, Designer | 1983 - 2006 | 16 | |
| Marshall, Eleanor Pierce | Eleanor Pierce Marshall | Actor | 1931 | 1 | |
| Melly, - | - Melly | Actor | 1928 | 9 | |
| Marra, Amy Di Lara | Amy Di Lara Marra | Costume Designer | 1995 | 1 | |
| Miller, Anna C. | Anna C. Miller | Actor | 1995 | 1 | |
| Monti, Tony | Tony Monti | Actor | 1979 | 1 | |
| Makio, Yusuke, | Yusuke Makio | Actor | 2006 | 1 | |
| Mizuchi, Yuko, | Yuko Mizuchi | Actor | 2006 | 1 | |
| Minamikaze, Yoko | Yoko Minamikaze | Actor | 1986 | 1 | |
|
|
