| Meiers, Fricis, | Fricis Meiers | Actor | 1902 | 2 | |
| Mantica, Fru, | Fru Mantica | Actor | 1902 | 1 | |
| Markowski, Feliks, | Feliks Markowski | Actor | 1903 | 1 | |
| Męczyńska, Maria (?), | Maria (?) Męczyńska | Actor | 1903 | 1 | |
| Meier, -, | - Meier | Actor | 1903 | 1 | |
| Martyn, Edward, | Edward Martyn | Director | 1903 - 1904 | 2 | |
| Moore, George, | George Moore | Director | 1903 - 1904 | 2 | |
| Molander, -, | - Molander | Actor | 1903 | 1 | |
| Mazzini, Annunziata, | Annunziata Mazzini | Actor | 1903 - 1906 | 21 | |
| Mijatev, Georgi, | Georgi Mijatev | Actor | 1903 | 3 | |
| Marion, -, | - Marion | Actor | 1903 | 1 | |
| Matkowska, Wilhelmina Michlewicz, | Wilhelmina Michlewicz Matkowska | Actor | 1903 | 1 | |
| Marchetti, I., | I. Marchetti | Actor | 1903 | 1 | |
| Marchetti, F., | F. Marchetti | Actor | 1903 | 1 | |
| Mosnier, Charles, | Charles Mosnier | Actor | 1903 | 3 | |
| Matějovská, Ludmila, | Ludmila Matějovská | Actor | 1905 - 1910 | 3 | |
| Merhaut, Vladimír, | Vladimír Merhaut | Actor | 1912 - 1923 | 6 | |
| Magregor, Norval, | Norval Magregor | Actor | 1904 | 2 | |
| Morris, William, | William Morris | Actor | 1904 | 1 | |
| Majdrowiczowa, Sylwestra, | Sylwestra Majdrowiczowa | Actor | 1904 | 1 | |
| Mestayer, Harry, | Harry Mestayer | Actor, Director | 1904 - 1906 | 31 | |
| MacVicars, Mr., | Mr. MacVicars | Actor | 1904 - 1905 | 2 | |
| Martin, Hilda, | Hilda Martin | Actor | 1904 | 1 | |
| McGilvray, Laura, | Laura McGilvray | Actor | 1904 | 1 | |
| Mason, John, | John Mason | Actor | 1904 | 1 | |
| Massen, Louis, | Louis Massen | Actor | 1904 | 1 | |
| Millward, Charles, | Charles Millward | Actor | 1904 | 1 | |
| Montgomerie, Astolaine, | Astolaine Montgomerie | Actor | 1905 | 1 | |
| McKee, William, | William McKee | Actor | 1905 | 1 | |
| Meysel, Adele, | Adele Meysel | Actor | 1905 | 2 | |
| Mendel, H., | H. Mendel | Actor | 1905 | 2 | |
| Mariewska, Zofia, | Zofia Mariewska | Actor | 1905 | 1 | |
| Mariański, Marian, | Marian Mariański | Actor | 1905 - 1913 | 2 | |
| Myin, -, | - Myin | Actor | 1905 | 1 | |
| Meunier, Maurice, | Maurice Meunier | Actor | 1905 | 2 | |
| MacClellan, Ellis, | Ellis MacClellan | Actor | 1905 | 1 | |
| Meech, Owen, | Owen Meech | Actor | 1905 - 1910 | 4 | |
| Minto, Dorothy, | Dorothy Minto | Actor | 1905 | 1 | |
| Moor, Karel, | Karel Moor | Adaptation, Composer | 1905 | 2 | |
| MacGregor, Mr., | Mr. MacGregor | Actor | 1905 | 1 | |
| Murby, Millicent, | Millicent Murby | Actor | 1904 | 2 | |
| Mitchelmore, Daisy, | Daisy Mitchelmore | Actor | 1905 | 1 | |
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