| Mroczkowski, (?), | (?) Mroczkowski | Actor | 1918 | 1 | |
| Mirecka, E., | E. Mirecka | Actor | 1918 | 1 | |
| Mac, Nila, | Nila Mac | Actor | 1918 | 1 | |
| Murata, Minoru, | Minoru Murata | Actor | 1918 | 1 | |
| Moraïtis, Nikos, | Nikos Moraïtis | Actor | 1918 | 1 | |
| Mullo, -, | - Mullo | Actor | 1919 | 1 | |
| Melvyl, -, | - Melvyl | Actor | 1919 | 1 | |
| Martin, Knut, | Knut Martin | Actor | 1920 | 1 | |
| Mycot, -, | - Mycot | Actor | 1920 | 1 | |
| Mowinckel, L., | L. Mowinckel | Musical Director | 1924 | 1 | |
| Messiter, Eric, | Eric Messiter | Actor | 1921 | 1 | |
| Myron, J., | J. Myron | Director | 1921 | 1 | |
| Marvick, Laurentia, | Laurentia Marvick | Actor | 1922 | 1 | |
| Mickelson, Lawrence T., | Lawrence T. Mickelson (Lawrence T. Mickelson) | Actor | 1922 | 1 | |
| Mathre, Gerhard, | Gerhard Mathre | Actor | 1922 | 1 | |
| 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 – 1923 | 1 | |
| Martynov, V., | V. Martynov | Designer | 1923 | 1 | |
| McMahon, Glenn, | Glenn McMahon | Actor | 1923 | 1 | |
| Metaxa, Antigoni, | Antigoni Metaxa | Actor | 1923 | 1 | |
| Meussen, Gerard, | Gerard Meussen | Actor | 1923 | 1 | |
| Mathorne, C., | C. Mathorne | Designer | 1924 | 1 | |
| Mjøen, Sonja, | Sonja Mjøen | Actor | 1924 | 1 | |
| Makó, Aida, | Aida Makó | Actor | 1924 | 1 | |
| Magnúsdóttir, Lara, | Lara Magnúsdóttir | Actor | 1924 | 1 | |
| Mitchell, Mrs. | Mrs. Mitchell | Actor | 1926 | 1 | |
| Matthews, Ross | Ross Matthews | Actor | 1926 | 1 | |
| Morris, Ann | Ann Morris | Actor | 1926 | 1 | |
| Mula, Tom | Tom Mula | Actor | 1972 | 1 | |
| Miller, Jonathan | Jonathan Miller | Director | 1974 | 1 | |
| Miller, Antha | Antha Miller | Actor | 1927 | 1 | |
| Maloberti, Tiziana | Tiziana Maloberti | Actor | 1927 – 1928 | 1 | |
| Martini, Rodolfo | Rodolfo Martini | Actor | 1927 – 1928 | 1 | |
| Maneva, Petja | Petja Maneva | Actor | 1974 | 1 | |
| metscheva, Liljana | Liljana Metscheva | Director | 1974 | 1 | |
| Matĕjíček, Jiří | Jiří Matĕjíček | Dramaturg | 1973 | 1 | |
| Mangår, Erling | Erling Mangår | Actor | 1928 | 1 | |
| Mason, Roger | Roger Mason | Actor | 1976 | 1 | |
| Müller-Kopp, Bert | Bert Müller-Kopp | Actor | 1973 | 1 | |
| Mönch, Peter | Peter Mönch | Actor | 1973 | 1 | |
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