| Muire, Frk. | Frk. Muire | Actor | 1889 - 1890 | 4 | |
| Mitchell, Dodson | Dodson Mitchell | Actor | 1906 - 1918 | 17 | 1 |
| Martin, Jacques | Jacques Martin | Actor | 1906 - 1909 | 15 | |
| Michel, David | David Michel | Actor | 2002 | 1 | |
| Moynahan, Alice Regan | Alice Regan Moynahan | Actor | 2002 | 1 | |
| Murray Cole, Paula | Paula Murray Cole | Actor | 2003 | 1 | |
| Minichini, I. | I. Minichini | Actor | 1920 | 1 | |
| Minichini, S. | S. Minichini | Actor | 1920 | 1 | |
| Minichini, M. | M. Minichini | Actor | 1920 | 1 | |
| Mayer, - | - Mayer | Actor | 1891 - 1941 | 3 | |
| Morey, - | - Morey | Actor | 1894 | 1 | |
| Mezzera, Franco | Franco Mezzera | Actor | 1972 - 1974 | 6 | |
| Mann, Tiffani | Tiffani Mann | Actor | 2004 | 1 | 1 |
| Merrill, William Way | William Way Merrill | Actor | 1929 | 1 | |
| Mortensen, Mari T. | Mari T. Mortensen | Actor | 1995 | 1 | |
| Montagnoli, Raffaele | Raffaele Montagnoli | Actor | 1996 | 2 | |
| Marino, Gian Paolo | Gian Paolo Marino | Actor | 1996 | 2 | |
| Meyers, Larry John | Larry John Meyers | Actor | 1984 | 1 | |
| Maurno, Dann Anthony | Dann Anthony Maurno | Actor | 2005 | 1 | |
| Maggs, Jr, Timothy J. | Timothy J. Maggs, Jr | Actor | 2006 | 1 | |
| Marengo, Bruno | Bruno Marengo | Actor | 1997 | 4 | |
| Marengo, Maria | Maria Marengo | Actor | 1997 | 4 | |
| Maslo, Arthur | Arthur Maslo | Actor | 1997 | 4 | |
| Moses, William | William Moses | Actor | 1968 | 1 | |
| Mugulia, Crystal Bleu | Crystal Bleu Mugulia | Actor | 1999 | 1 | |
| Magiera, Alexander | Alexander Magiera | Actor | 1997 | 1 | |
| Milster, Folkert | Folkert Milster | Actor | 2005 - 2006 | 3 | |
| Meller, Margit | Margit Meller | Actor | 1981 | 1 | |
| Miserius, - | - Miserius | Actor | 1896 | 1 | |
| McFarland, Fred | Fred McFarland | Actor | 1963 | 1 | |
| Morris, Bob | Bob Morris | Actor | 1966 | 1 | |
| Montgomery, Marcia Abbe | Marcia Abbe Montgomery | Actor | 1926 | 1 | |
| Maché, Katinka | Katinka Maché | Actor | 2010 | 6 | 1 |
| Mallen, Tara | Tara Mallen | Actor | 1987 | 1 | |
| Mallon, Brian | Brian Mallon | Actor | 1989 | 1 | |
| Matthiessen, Joam | Joan Matthiessen | Actor | 1989 | 2 | 1 |
| Müller, Marg | Marg Müller | Actor | 1894 | 1 | |
| McMahon, James B. | James B. McMahon | Actor | 1956 | 1 | |
| Murzaeva, Irina | Irina Murzaeva (Ирина Мурзаева) | Actor | 1939 | 1 | |
| Malović, Jovana | Jovana Malović | Actor | 2000 - 2001 | 3 | |
| Madeja, Tadeusz | Tadeusz Madeja | Actor | 1989 | 1 | |
| Murzyńska-Głybin, Bogumiła | Bogumiła Murzyńska-Głybin | Actor | 1989 | 1 | |
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