| Marx, Emil | Emil Marx | Actor, Director | 1898 | 3 | |
| Mehrer, Frk. | Frk. Mehrer | Actor | 1898 | 1 | |
| Mendelssohn, Arnold Ludwig | Arnold Ludwig Mendelssohn | Composer | 1898 | 1 | |
| 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 | |
| Mora, Illa | Illa Mora | Actor | 1898 | 1 | |
| Meskhishvili, Lado | Lado Meskhishvili | Actor, Director | 1898 | 2 | |
| Müller, Agnes | Agnes Müller | Actor | 1898 - 1907 | 7 | |
| Masi, Giuseppe | Giuseppe Masi | Actor | 1898 - 1909 | 5 | |
| Maltana, Elsa | Elsa Maltana | Actor | 1898 - 1913 | 8 | |
| Meyer, Grete | Grete Meyer | Actor | 1898 - 1917 | 5 | |
| Meyer, Frieda | Frieda Meyer | Actor | 1898 - 1922 | 7 | |
| Mühlhofer, Hans | Hans Mühlhofer | Actor | 1898 - 1926 | 8 | |
| Manning, Dr. Philipp | Philipp Manning (Dr. Philipp Manning) | Actor, Director | 1898 - 1937 | 21 | |
| 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 | |
| Mastoropoulou, Agathoniki | Agathoniki Mastoropoulou | Actor | 1899 | 1 | |
| Mayer, Mizzi | Mizzi Mayer | Actor | 1899 | 2 | 1 |
| Marcilly, Marie | Marie Marcilly | Actor | 1899 | 1 | |
| Matrat, - | - Matrat | Actor | 1899 | 1 | |
| Maggi, Mr. | Mr. Maggi | Actor | 1899 | 1 | |
| Manz, Richard | Richard Manz | Actor | 1899 | 1 | |
| Muller, Franz | Franz Muller | Actor | 1899 | 1 | |
| Muller, - | - Muller | Actor | 1899 | 1 | |
| Martin, Paul | Paul Martin | Actor | 1899 | 1 | 1 |
| McAllister, Phosa | Phosa McAllister | Actor | 1899 | 1 | |
| Mimi, kl. | kl. Mimi | Actor | 1899 | 1 | |
| Madsen, Carl | Carl Madsen | Actor | 1899 - 1904 | 12 | |
| Majchrzycka, Wanda | Wanda Majchrzycka | Actor | 1899 - 1905 | 2 | |
| Mikulski, Józef | Józef Mikulski | Actor | 1899 - 1911 | 3 | |
| Mayr, Ludwig | Ludwig Mayr | Actor | 1899 - 1923 | 2 | |
| Moskvin, Ivan | Ivan Moskvin | Actor | 1899 - 1924 | 9 | |
| Montor, Max | Max Montor | Actor, Director | 1899 - 1931 | 27 | |
| Marrené-Morzkowska, Waleria | Waleria Marrené-Morzkowska | Translator | 1899 - 1958 | 14 | |
| Mowinckel, Agnes | Agnes Mowinckel | Actor, Director | 1899 - 1959 | 135 | 1 |
| Morgenstern, Christian | Christian Morgenstern | Translator | 1899 - 2023 | 390 | 3 |
| Mehner, Adolf | Adolf Mehner | Actor | 1900 | 1 | |
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