| Mirecka, E. | E. Mirecka | Actor | 1918 | 1 | |
| Mac, Nila | Nila Mac | Actor | 1918 | 1 | |
| Murata, Minoru | Minoru Murata | Actor | 1918 | 1 | |
| Merrall, Mary | Mary Merrall | Actor | 1918 - 1972 | 5 | |
| Moraïtis, Nikos | Nikos Moraïtis | Actor | 1918 | 1 | |
| Mārsietis, Jānis | Jānis Mārsietis | Actor | 1918 - 1939 | 8 | |
| Mullo, - | - Mullo | Actor | 1919 | 1 | |
| Melvyl, - | - Melvyl | Actor | 1919 | 1 | |
| Martini, Mortimer | Mortimer Martini | Actor | 1920 | 4 | |
| Molnár, József | József Molnár | Actor | 1920 - 1924 | 2 | |
| Martin, Knut | Knut Martin | Actor | 1920 | 1 | |
| Mycot, - | - Mycot | Actor | 1920 | 1 | |
| Majthényi, László | László Majthényi | Actor, Director | 1919 - 1921 | 3 | |
| Mowinckel, L. | L. Mowinckel | Musical Director | 1924 | 1 | |
| Messiter, Eric | Eric Messiter | Actor | 1921 | 1 | |
| Myron, J. | J. Myron | Director | 1921 | 1 | |
| McConnell, Frederic | Frederic McConnell | Director | 1922 - 1930 | 3 | |
| Merritt, George | George Merritt | Actor | 1922 - 1925 | 4 | |
| Marvick, Laurentia | Laurentia Marvick | Actor | 1922 | 1 | |
| Mickelson, Lawrence T. | Lawrence T. Mickelson | Actor | 1922 | 1 | |
| Mathre, Gerhard | Gerhard Mathre | Actor | 1922 | 1 | |
| May, Elsbeth | Elsbeth May | Actor | 1922 - 1990 | 3 | |
| Martelli, Arnaldo | Arnaldo Martelli | Actor | 1922 | 3 | |
| Murata, Kikuko | Kikuko Murata | Actor | 1922 | 1 | |
| Murata, Miyako | Miyako Murata | Actor | 1922 | 1 | |
| Mumdzhiev, K. | K. Mumdzhiev | Actor | 1922 | 1 | |
| Masi, Rossana | Rossana Masi | Actor | 1922 | 1 | |
| Martynov, V. | V. Martynov | Designer | 1923 | 1 | |
| Milev, Geo | Geo Milev | Translator | 1923 - 1924 | 4 | |
| McMahon, Glenn | Glenn McMahon | Actor | 1923 | 1 | |
| Metaxa, Antigoni | Antigoni Metaxa | Actor | 1923 | 1 | |
| Morino, Jone | Jone Morino | Actor | 1923 - 1949 | 6 | |
| Morino, Maria | Maria Morino | Actor | 1923 - 1924 | 2 | |
| Meussen, Gerard | Gerard Meussen | Actor | 1923 | 1 | |
| Mihalesco, M. | M. Mihalesco | Actor, Director | 1924 | 2 | |
| Mizoguchi, Saburo | Saburo Mizoguchi | Designer | 1924 - 1928 | 2 | |
| Moore, Frank | Frank Moore | Actor | 1913 - 1928 | 4 | |
| Madsen-Wiesneck, J. | J. Madsen-Wiesneck | Designer | 1924 - 1934 | 2 | |
| Mathorne, C. | C. Mathorne | Designer | 1924 | 1 | |
| Michelsen, Randi | Randi Michelsen | Actor | 1924 - 1960 | 4 | |
| Mjøen, Sonja | Sonja Mjøen | Actor | 1924 | 1 | |
| Moseley, Kathleen | Kathleen Moseley | Actor | 1924 - 1926 | 2 | |
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