| Matějovský, František | František Matějovský | Actor | 1897 - 1920 | 2 | |
| Muceniece, Otīlija | Otīlija Muceniece | Actor, Director | 1897 - 1923 | 11 | |
| Max, Ludwig | Ludwig Max | Actor | 1897 - 1903 | 3 | |
| Milo, Ms. | Ms. Milo | Actor | 1897 | 1 | |
| Marner, Egon | Egon Marner | Actor | 1897 | 1 | |
| MacDonnell, Flora | Flora MacDonnell | Actor | 1897 - 1904 | 2 | |
| Mahood, J.W. | J. W. Mahood (J.W. Mahood) | Actor | 1897 | 1 | |
| Maddock, Lily | Lily Maddock | Actor | 1897 | 1 | |
| Maddock, S.W. | S. W. Maddock (S.W. Maddock) | Actor | 1897 | 1 | |
| Marikou, Amalia | Amalia Marikou | Actor | 1897 - 1916 | 9 | |
| Maier, Anja | Anja Maier | Costume Designer | 2004 - 2006 | 4 | |
| Mehrer, Frk. | Frk. Mehrer | Actor | 1898 | 1 | |
| Mühlhofer, Hans | Hans Mühlhofer | Actor | 1898 - 1926 | 8 | |
| Mendelssohn, Arnold Ludwig | Arnold Ludwig Mendelssohn | Composer | 1898 | 1 | |
| Meyer-Eigen, August | August Meyer-Eigen | Actor | 1889 - 1902 | 5 | |
| Meyer, Grete | Grete Meyer | Actor | 1898 - 1917 | 5 | |
| Milau, - | - Milau | Actor | 1898 | 1 | |
| Marer, Johannes | Johannes Marer | Actor | 1898 | 1 | |
| Mühlbach, Frk. | Frk. Mühlbach | Actor | 1898 | 1 | |
| Meinert, Else | Else Meinert | Actor | 1898 | 1 | |
| Malsy, Mr. | Mr. Malsy | Actor | 1898 | 1 | |
| Maltana, Elsa | Elsa Maltana | Actor | 1898 - 1913 | 8 | |
| Mora, Illa | Illa Mora | Actor | 1898 | 1 | |
| Małkowski, - | - Małkowski | Actor | 1899 | 1 | |
| Miro, - | - Miro | Actor | 1899 | 1 | |
| Moes, Janina Żarska | Janina Żarska Moes | Actor | 1899 | 1 | |
| Marini, Laura | Laura Marini | Actor | 1899 | 1 | |
| Moskvin, Ivan | Ivan Moskvin | Actor | 1899 - 1924 | 9 | |
| Mastoropoulou, Agathoniki | Agathoniki Mastoropoulou | Actor | 1899 | 1 | |
| Majchrzycka, Wanda | Wanda Majchrzycka | Actor | 1899 - 1905 | 2 | |
| Mikulski, Józef | Józef Mikulski | Actor | 1899 - 1911 | 3 | |
| Madsen, Carl | Carl Madsen | Actor | 1899 - 1904 | 12 | |
| Marcilly, Marie | Marie Marcilly | Actor | 1899 | 1 | |
| Matrat, - | - Matrat | Actor | 1899 | 1 | |
| Maggi, Mr. | Mr. Maggi | Actor | 1899 | 1 | |
| Marrené-Morzkowska, Waleria | Waleria Marrené-Morzkowska | Translator | 1899 - 1958 | 14 | |
| Mayer, Hans | Hans Mayer | Actor | 1900 - 1902 | 8 | |
| Martini, Willy | Willy Martini | Actor, Director | 1900 - 1904 | 4 | |
| Mehner, Adolf | Adolf Mehner | Actor | 1900 | 1 | |
| Marton, Rosa | Rosa Marton | Actor | 1900 | 1 | |
| Milbitz, Paula | Paula Milbitz | Actor | 1901 - 1915 | 2 | |
| Maßberg, Hermann | Hermann Maßberg | Actor | 1901 | 1 | |
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