| Merlino, María | María Merlino | Actor, Adaptation | 2016 | 2 | |
| Martínez, Lilia | Lilia Martínez | Actor | 1954 - 1956 | 2 | |
| Mateos, Héctor | Héctor Mateos | Actor | 1954 - 1956 | 2 | |
| Matute, Ivaro | Álvaro Matute (Ivaro Matute) | Actor | 1954 - 1956 | 2 | |
| Muñoz, José | José Muñoz | Actor | 1954 - 1956 | 2 | |
| Massey, Anna | Anna Massey | Actor | 1970 - 1973 | 2 | 1 |
| Malek-Nasr, Yasmen | Yasmen Malek-Nasr | Actor | 1993 | 1 | |
| Mills, Grace | Grace Mills | Actor | 1936 - 1938 | 12 | |
| Meyers, Lorna Lynn | Lorna Lynn Meyers | Actor | 1937 - 1938 | 7 | |
| Major, Tamás | Tamás Major | Actor | 1931 - 1941 | 7 | |
| Morozova, - | - Morozova | Actor | 1914 | 1 | |
| Matthiessen, Artus-Maria | Artus-Maria Matthiessen | Actor | 1990 | 1 | |
| Mammadova, Ganira | Ganira Mammadova | Actor | 2004 | 1 | |
| Mannervall, Marie-Louise | Marie-Louise Mannervall | Actor | 1970 | 1 | |
| Moritzen, Henning | Henning Moritzen | Actor | 1957 - 2000 | 5 | 1 |
| Malahide, Patrick | Patrick Malahide | Actor | 1992 - 1994 | 4 | 1 |
| Morska-Popławska, Gabriela | Gabriela Morska-Popławska | Actor | 1900 - 1908 | 7 | |
| Machín, Luis | Luis Machín | Actor | 2001 | 1 | |
| Michelsen, Lars | Lars Michelsen | Actor | 1876 - 1889 | 43 | 1 |
| Michelsen, Anna | Anna Michelsen | Actor | 1880 - 1882 | 3 | |
| Martin, Anna | Anna Martin | Actor | 2003 | 1 | |
| Mihályfi, Béla | Béla Mihályfi | Actor | 1928 - 1932 | 3 | |
| Matioc, Adrian | Adrian Matioc | Actor | 2004 - 2018 | 11 | |
| Mishima, Keita | Keita Mishima | Actor | 1993 | 1 | |
| Malmé, Mona | Mona Malmé | Actor | 1954 | 1 | |
| Meyerhoff, Juliane | Juliane Meyerhoff | Actor | 1976 - 2009 | 2 | 1 |
| Möller, Florian | Florian Möller | Actor | 2003 | 1 | |
| Marenbach, Leny | Leny Marenbach | Actor | 1934 | 1 | |
| Meyer, Marie | Marie Meyer | Actor | 1878 - 1904 | 15 | 1 |
| Mährdel, Emil | Emil Mährdel | Actor | 1900 - 1904 | 11 | |
| Markus, Tarja | Tarja Markus | Actor | 1967 - 1977 | 2 | |
| Morawiecz, Barbara | Barbara Morawiecz | Actor | 1995 | 1 | 1 |
| Molina, Daniela | Daniela Molina | Actor | 1995 | 1 | |
| Manning, Helen | Helen Manning | Actor | 1955 - 1997 | 5 | |
| Maagaard, Jytte | Jytte Maagaard | Actor | 1981 | 1 | |
| Maalismaa, Markku | Markku Maalismaa | Actor | 1985 - 2005 | 4 | 1 |
| Maas, Dieter | Dieter Maas | Actor | 1978 - 1998 | 2 | |
| Maassen, Heinz | Heinz Maassen | Actor | 1975 | 1 | |
| Macaleer, Carey | Carey Macaleer | Actor | 2006 | 2 | 1 |
| Machníková, Vlasta | Vlasta Machníková | Actor | 1976 | 1 | |
| Maclean, Annie | Annie Maclean | Actor | 1884 | 1 | 1 |
| Maclean, John | John Maclean | Actor | 1884 | 1 | 1 |
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