| Michutta, Emil, | Emil Michutta | Actor | 1950 | 1 | |
| Miedel, Klaus, | Klaus Miedel | Actor | 1950 - 1955 | 2 | |
| Matter, Ernst Ludwig, | Ernst Ludwig Matter | Actor | 1950 | 1 | |
| Murauer, Emma, | Emma Murauer | Actor | 1936 - 1962 | 7 | |
| Morozowicz, Henryk, | Henryk Morozowicz | Actor, Director | 1900 - 1904 | 2 | |
| Meltzer, Charles Henry, | Charles Henry Meltzer (Charles Henry Meltzer) | Director | 1900 | 1 | |
| Massenet, Jules, | Jules Massenet | Composer | 1900 - 1917 | 4 | |
| Mann-Bouwmeester, Theo, | Theo Mann-Bouwmeester | Actor | 1900 - 1914 | 5 | |
| Munt, E., | E. Munt | Actor | 1900 - 1924 | 5 | |
| Meyerhold, Vsévolod Èmíl'evič | Vsévolod Èmíl'evič Meyerhold (Vsévolod Èmíl'evič Meyerhold) | Actor, Adaptation, Designer, Director | 1900 - 1924 | 37 | |
| Massalitinov, N., | Nikolaj O. Massalitinov (N. Massalitinov) | Actor, Director | 1900 - 1939 | 10 | |
| Miarczyński, Włodzimierz, | Włodzimierz Miarczyński | Actor | 1901 - 1912 | 5 | |
| Micińska, Wanda, | Wanda Micińska | Actor | 1901 | 1 | |
| Mandrovitsch, Adam, | Adam Mandrovitsch | Director | 1901 | 1 | |
| Maltby, Charles, | Charles Maltby | Actor | 1901 | 1 | |
| Marcus, Ethel, | Ethel Marcus | Actor | 1901 | 1 | |
| Morel, Emma, | Emma Morel | Actor | 1901 - 1916 | 2 | |
| Muratova, E., | E. Muratova | Actor | 1900 - 1901 | 2 | |
| Mihályfi, -, | - Mihályfi | Actor | 1901 | 1 | |
| Møller, Mimi, | Mimi Møller | Actor | 1901 | 6 | |
| Malmgreen, Olaf, | Olaf Malmgreen | Actor | 1901 | 6 | |
| Mølbach, Christian, | Christian Mølbach | Actor | 1901 | 1 | |
| Madsen, Anna, | Anna Madsen | Actor | 1901 - 1904 | 2 | |
| Mietle, Benny, | Benny Mietle | Actor | 1901 | 1 | |
| Markellos, Spyros, | Spyros Markellos | Translator | 1901 - 1918 | 18 | |
| Myrat, Mitsos, | Mitsos Myrat | Actor | 1901 - 1926 | 15 | |
| Morozowicz, Rufin(?), | Rufin(?) Morozowicz | Actor | 1901 | 1 | |
| Marko, (?), | (?) Marko | Actor | 1901 - 1903 | 2 | |
| Matuszewski, -, | - Matuszewski | Actor | 1901 | 1 | |
| Morzkowski, -, | - Morzkowski | Actor | 1901 | 1 | |
| Mielnicki, Józef, | Józef Mielnicki | Actor | 1902 - 1908 | 2 | |
| Miciński, Stanisław, | Stanisław Miciński | Actor | 1902 - 1912 | 3 | |
| Magnussøn, Sigurd, | Sigurd Magnussøn | Actor | 1902 - 2006 | 23 | |
| Merrild, Karl, | Karl Merrild | Actor | 1902 | 1 | |
| Mela, Th., | Th. Mela | Actor | 1902 | 1 | |
| McKinnel, Norman, | Norman McKinnel | Actor | 1902 - 1920 | 3 | |
| Meyer, Belly, | Belly Meyer | Actor | 1902 | 1 | |
| Mrozowska, Jadwiga, | Jadwiga Mrozowska | Actor | 1902 - 1906 | 2 | |
| Mijatović, Pavle, | Pavle Mijatović | Translator | 1902 - 1928 | 4 | |
| Mantschev, Zvetan, | Zvetan Mantschev | Actor | 1902 - 1909 | 5 | |
| Mandahl, Thor, | Thor Mandahl | Actor | 1902 - 1914 | 2 | |
| Meiers, Fricis, | Fricis Meiers | Actor | 1902 - 1903 | 2 | |
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