| Marstrand, Günther | Günther Marstrand | Actor | 1921 | 1 | |
| Messiter, Eric | Eric Messiter | Actor | 1921 | 1 | |
| Myron, J. | J. Myron | Director | 1921 | 1 | |
| Maybury, Edgar | Edgar Maybury | Designer | 1921 | 1 | |
| McCreery, Helen | Helen McCreery | Actor | 1921 | 1 | |
| Manners, T., P. | T. P. Manners | Actor | 1921 | 1 | |
| Mača, Alma | Alma Mača | Actor | 1921 | 1 | |
| Muncis, Jānis | Jānis Muncis | Designer | 1921 | 1 | |
| Mačs, Emils | Emils Mačs | Actor | 1921 | 3 | |
| Marseets, Jānis | Jānis Marseets | Actor | 1921 | 5 | |
| Mitrevics, Augusts | Augusts Mitrevics | Actor | 1921 | 2 | |
| Mann, Max | Max Mann | Actor | 1921 | 1 | |
| Molenaar, Herbert | Herbert Molenaar | Actor | 1921 | 1 | |
| Malenowska, Maria | Maria Malenowska | Actor | 1921 | 2 | |
| Manoliu, Z. | Z. Manoliu | Actor | 1921 | 1 | |
| Miliander, Sven | Sven Miliander | Actor | 1920 - 1952 | 6 | |
| Maierhofer, Ferdinand | Ferdinand Maierhofer | Actor | 1920 - 1946 | 5 | |
| Macri-Eftimiu, Agepsina | Agepsina Macri-Eftimiu | Actor | 1920 - 1941 | 12 | |
| Mihail Dragomirescu, Laura | Laura Mihail Dragomirescu | Translator | 1920 - 1935 | 6 | |
| Mărculescu, Grigore | Grigore Mărculescu | Actor | 1920 - 1932 | 4 | |
| Moncza, Hermann | Hermann Moncza | Actor | 1920 - 1925 | 3 | |
| Molnár, József | József Molnár | Actor | 1920 - 1924 | 2 | |
| Molnár, János | János Molnár | Actor | 1920 - 1924 | 3 | |
| Mole, Vojeslav | Vojeslav Mole | Translator | 1920 - 1923 | 3 | |
| Muscan, Gr. | Gr. Muscan | Actor | 1920 - 1923 | 4 | |
| Minichini, I. | I. Minichini | Actor | 1920 | 1 | |
| Minichini, S. | S. Minichini | Actor | 1920 | 1 | |
| Minichini, M. | M. Minichini | Actor | 1920 | 1 | |
| May, Gustav | Gustav May | Actor | 1920 | 1 | |
| Maschke, Gretel | Gretel Maschke | Actor | 1920 | 1 | |
| Metge, Leni | Leni Metge | Actor | 1920 | 1 | |
| Martini, Mortimer | Mortimer Martini | Actor | 1920 | 4 | |
| Martin, Knut | Knut Martin | Actor | 1920 | 1 | |
| Mycot, - | - Mycot | Actor | 1920 | 1 | |
| Martinec, Miloš | Miloš Martinec | Actor | 1920 | 1 | |
| Mansfeld, František (Otto) | František (Otto) Mansfeld | Actor | 1920 | 1 | |
| Morris, Leland, C. | Leland C. Morris | Actor | 1920 | 1 | |
| Münch, Josef | Josef Münch | Director | 1920 | 1 | |
| Majdrowiczówna, Maria | Maria Majdrowiczówna | Actor | 1920 | 1 | |
| Maliszewski, Józef | Józef Maliszewski | Actor | 1920 | 1 | |
| Maszyński, Mariusz | Mariusz Maszyński | Actor | 1920 | 1 | |
| Mantecón, Francisco | Francisco Mantecón | Actor | 1920 | 1 | |
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