| 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 - 1956 | 2 | |
| Motley, - | - Motley | Costume Designer, Designer | 1936 - 1962 | 35 | |
| McCormick, F.J. | 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 - 1926 | 3 | |
| Mendizabal, Nelly | Nelly Mendizabal | Actor | 1954 - 1955 | 2 | |
| Merten, Thorsten | Thorsten Merten | Actor | 1994 - 1998 | 10 | |
| Milan, Fred | Fred Milan | Choreographer | 1977 | 1 | |
| Martin, Thomas | Thomas Martin | Actor | 1953 - 1992 | 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 - 1901 | 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 - 1932 | 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 | |
| Mitra, Tripti | Tripti Mitra | Actor, Director | 1952 - 1981 | 3 | |
| Maćkowiak, Janusz | Janusz Maćkowiak | Composer | 1957 | 1 | |
| Möser, Nicola | Nicola Möser | Costume Designer | 2005 | 4 | |
| Moore, Tobi Jane | Tobi Jane Moore | Actor | 2004 | 1 | |
| Martin, Laura Ann | Laura Ann Martin | Actor | 2004 | 1 | |
| Murray, Neil | Neil Murray | Actor | 2003 | 1 | |
| Máynez, Laura Elena Ortega | Laura Elena Ortega Máynez | Actor | 1985 | 1 | |
| Mörner, Dorothy | Dorothy Mörner | Actor | 2002 - 2005 | 3 | |
| Möller, Imke | Imke Möller | Actor | 1998 | 1 | |
| Møller, Hildur | Hildur Møller | Actor | 1924 - 1933 | 3 | |
| Muñoz, Pep Anton | Pep Anton Muñoz | Actor | 2004 | 1 | |
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