| 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 | |
| Malík, Jaroslav | Jaroslav Malík | Actor | 1961 | 1 | |
| Malíková, Dana | Dana Malíková | Actor | 1961 | 1 | |
| Macháček, Frantisek | Frantisek Macháček | Actor | 1956 | 1 | |
| Müllerová, M. | M. Müllerová | Actor | 1955 | 1 | |
| Molnár, Rózsi V. | Rózsi V. Molnár | Actor | 1918 | 1 | |
| Maevskij, Ljudvigov | Ljudvigov Maevskij | Actor | 1891 | 1 | |
| Mosarov, Vladimir | Vladimir Mosarov | Director, Sound Designer | 2001 | 2 | |
| Mørck, Aage | Aage Mørck | Actor | 1915 | 1 | |
| Moaleş, Elena | Elena Moaleş | Actor | 2006 | 2 | |
| Münch, Ursula | Ursula Münch | Actor | 1990 - 1992 | 2 | |
| Mădescu, Mihai | Mihai Mădescu | Costume Designer, Designer | 1972 - 1992 | 4 | |
| Müller, W. | W. Müller | Director | 1998 | 1 | |
| Maličká, Karolina (Karla) | Karolina (Karla) Maličká | Actor | 1889 | 1 | |
| Melsert, W. v.d. Horst-van der Lugt | Wilhelmina van der Horst-van der Lugt Melsert (W. v.d. Horst-van der Lugt Melsert) | Actor | 1911 - 1926 | 2 | |
| Mayer, Dorothy Virginia | Dorothy Virginia Mayer | Actor | 1904 | 1 | |
| Merin, Eda Reiss | Eda Reiss Merin | Actor | 1971 | 2 | |
| Monti, Edith | Edith Monti | Actor | 1901 | 1 | |
| Maldonado, Alberto | Alberto Maldonado | Lighting Designer | 1985 | 1 | |
| Matthew, Nicky | Nicky Matthew | Sound Designer | 1987 | 1 | |
| Muire, Frk. | Frk. Muire | Actor | 1889 - 1890 | 4 | |
| Mansfield, Richard | Richard Mansfield | Actor, Director | 1889 - 1907 | 24 | |
| Mitchell, Dodson | Dodson Mitchell | Actor | 1906 - 1918 | 17 | |
| Martin, Jacques | Jacques Martin | Actor | 1906 - 1909 | 15 | |
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