| McDonnell, P.J. | P. J. McDonnell (P.J. McDonnell) | Actor | 1923 | 2 | |
| Mitchell, Charlotte | Charlotte Mitchell | Actor | 1981 - 1982 | 3 | |
| Meriste, Triinu | Triinu Meriste | Actor | 2007 - 2008 | 5 | |
| Mota, Daniela | Daniela Mota | Actor | 2004 | 1 | |
| McNamara, Eileen | Eileen McNamara | Actor | 1994 | 1 | |
| Merz, ? | ? Merz | Actor | 1918 - 1919 | 2 | |
| Moose, Rebekah | Rebekah Moose | Actor | 1932 | 1 | |
| Murray, Bridget | Bridget Murray | Actor | 2002 | 1 | |
| McLay, Fiona | Fiona McLay | Actor | 1984 | 1 | |
| McMahon, Richie | Richie McMahon | Actor | 2006 | 1 | |
| Motoyasu, Yutaka | Yutaka Motoyasu | Actor | 1914 | 1 | |
| Maceiras, Flor | Flor Maceiras | Actor | 1995 | 1 | |
| Maddock, Margaret | Margaret Maddock | Actor | 1993 | 1 | |
| Martin, Mary E. | Mary E. Martin | Actor | 1933 | 1 | |
| Malherbe, - | - Malherbe | Actor | 1913 | 1 | |
| Mizutani, Yaeko | Yaeko Mizutani | Actor | 1921 - 1924 | 3 | |
| Matsui, Yoko | Yoko Matsui | Actor | 1924 | 1 | |
| Michajlov, K. | K. Michajlov | Actor | 1959 | 1 | |
| Moodie, Tanya | Tanya Moodie | Actor | 1994 - 2005 | 7 | |
| McCaul, Ruth Rayyah | Ruth Rayyah McCaul | Actor | 2005 | 1 | |
| Meyer, Henry | Henry Meyer | Actor | 1988 - 2016 | 20 | 2 |
| Molaee, Reza | Reza Molaee | Actor | 2006 - 2010 | 3 | |
| Mills, Margaret | Margaret Mills | Actor | 1998 | 1 | |
| Madden, Will | Will Madden | Actor | 2003 | 1 | |
| Mason, Paul | Paul Mason | Actor | 1986 | 1 | |
| McLean, Carrie | Carrie McLean | Actor | 2000 | 1 | |
| Moen, Ingvald | Ingvald Moen | Actor | 1974 | 10 | |
| Melander, Nils | Nils Melander | Actor | 2001 | 4 | |
| Mestrez, Hubert | Hubert Mestrez | Actor | 1975 - 1977 | 10 | |
| Minkus, Hannelore | Hannelore Minkus | Actor | 1953 - 1954 | 4 | |
| Mayer, José | José Mayer | Actor | 1994 - 2002 | 2 | |
| Mendes, Cássio Gabus | Cássio Gabus Mendes | Actor | 2002 | 1 | |
| Müller, Margarethe | Margarethe Müller | Actor | 1895 - 1897 | 3 | |
| Müller, Emmy | Emmy Müller | Actor | 1893 - 1897 | 3 | |
| Müller, Lolo | Lolo Müller | Actor | 1896 - 1897 | 2 | |
| Merten, Claudius | Claudius Merten | Actor | 1889 - 1907 | 4 | |
| Müller, Trude | Trude Müller | Actor | 1895 | 1 | |
| Mietens, Pia | Pia Mietens | Actor | 1932 - 1941 | 3 | |
| Mayer, Murphy | Murphy Mayer | Actor | 2011 | 1 | |
| Moriau, Stephanie | Stephanie Moriau | Actor | 2011 | 1 | |
| Moses, Carina | Carina Moses | Actor | 2009 - 2011 | 2 | |
| Madorsky, Jenny | Jenny Madorsky | Actor | 2011 | 1 | 4 |
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