| Marion, Marianne | Marianne Marion | Actor | 1901 - 1902 | 8 | |
| Monti, Edith | Edith Monti | Actor | 1901 | 1 | |
| Maßberg, Hermann | Hermann Maßberg | Actor | 1901 | 1 | |
| Mäder, Marie | Marie Mäder | Actor | 1901 | 1 | |
| 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 | |
| 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 | |
| Mietle, Benny | Benny Mietle | Actor | 1901 | 1 | |
| Morozowicz, Rufin(?) | Rufin(?) Morozowicz | Actor | 1901 | 1 | |
| Matuszewski, - | - Matuszewski | Actor | 1901 | 1 | |
| Morzkowski, - | - Morzkowski | Actor | 1901 | 1 | |
| Merito, Ada | Ada Merito | Actor | 1901 | 1 | |
| Marian, B. | B. Marian | Translator | 1901 | 2 | 1 |
| Massalitinov, N. | Nikolaj O. Massalitinov | Actor, Director | 1900 - 1939 | 10 | |
| Marlow, Heinrich | Heinrich Marlow | Actor | 1900 - 1933 | 7 | 1 |
| Murphy, John Daly | John Daly Murphy | Actor | 1900 - 1929 | 5 | |
| Munt, E. | E. Munt | Actor | 1900 - 1924 | 5 | |
| Mejerhol'd, Vsevolod | Vsevolod Mejerhol'd (Всеволод Мейерхольд) | Actor, Adaptation, Designer, Director | 1900 - 1924 | 45 | 1 |
| Massenet, Jules | Jules Massenet | Composer | 1900 - 1917 | 4 | |
| Möller, Mr. | Mr. Möller | Actor | 1900 - 1914 | 5 | |
| Mann-Bouwmeester, Theo | Theo Mann-Bouwmeester | Actor | 1900 - 1914 | 5 | |
| Maurer, Marie, von | Marie von Maurer | Actor | 1900 - 1912 | 4 | |
| Morska-Popławska, Gabriela | Gabriela Morska-Popławska | Actor | 1900 - 1908 | 7 | |
| Mährdel, Emil | Emil Mährdel | Actor | 1900 - 1904 | 11 | |
| Martini, Willy | Willy Martini | Actor, Director | 1900 - 1904 | 4 | |
| Morozowicz, Henryk | Henryk Morozowicz | Actor, Director | 1900 - 1904 | 2 | |
| Mayer, Hans | Hans Mayer | Actor | 1900 - 1902 | 8 | |
| Muratova, E. | E. Muratova | Actor | 1900 - 1901 | 2 | |
| Mehner, Adolf | Adolf Mehner | Actor | 1900 | 1 | |
| Marton, Rosa | Rosa Marton | Actor | 1900 | 1 | |
| Meltzer, Charles Henry | Charles Henry Meltzer | Director | 1900 | 1 | |
| Mebus, Eduard | Eduard Mebus | Actor | 1900 | 1 | |
| Mauren, Otto | Otto Mauren | Actor | 1900 | 1 | |
| Müller, Bertha | Bertha Müller | Actor | 1900 | 2 | |
| Marsky, Richard | Richard Marsky | Actor | 1900 | 1 | |
| Meier, Franz | Franz Meier | Actor | 1900 | 1 | |
| Magener, Karl | Karl Magener | Actor | 1900 | 1 | |
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