| Mixa, Josef | Josef Mixa | Actor, Director | 1964 - 1990 | 7 | |
| Marshall, Peggy | Peggy Marshall | Actor | 1975 - 1979 | 3 | |
| McKee, Lorraine | Lorraine McKee | Costume Designer | 1972 | 6 | |
| Mendl, Michael | Michael Mendl | Actor | 1972 - 1973 | 2 | |
| Macready, Susan | Susan Macready | Actor | 1972 | 6 | |
| Martin, Trevor | Trevor Martin | Actor | 1975 | 1 | |
| Metzner, Hildegard | Hildegard Metzner | Actor | 1973 | 1 | |
| Mücke, Annelies | Annelies Mücke | Actor | 1961 - 1973 | 3 | |
| Mittreiter, Kurt | Kurt Mittreiter | Costume Designer, Designer | 1967 - 1973 | 4 | |
| Menachem, Zak Menachem | Zak Menachem Menachem | Musical Director | 1979 | 1 | |
| Matache, Ica | Ica Matache | Actor | 1957 - 1975 | 2 | |
| Maekawa, Testuo | Testuo Maekawa | Actor | 1976 | 1 | |
| Mackenzie, Michael | Michael Mackenzie | Actor | 1975 - 1981 | 2 | |
| Matter, Franz | Franz Matter | Actor | 1972 - 1973 | 2 | |
| Moreth, Detlev | Detlev Moreth | Actor | 1973 - 1985 | 5 | |
| Maw, Janet | Janet Maw | Actor | 1979 | 2 | |
| Mayes, Richard | Richard Mayes | Actor | 1979 | 2 | |
| Mackenzie, Julia | Julia Mackenzie | Actor | 1979 | 1 | |
| May, Deborah | Deborah May | Actor, Author | 1976 - 1977 | 4 | |
| Madin, Holger | Holger Madin | Actor | 1979 | 1 | |
| Moore, Daphne | Daphne Moore | Actor | 1979 | 1 | |
| Marks, Malte | Malte Marks | Costume Designer, Designer | 1960 - 2002 | 7 | |
| Müller-Reitzner, Kurt | Kurt Müller-Reitzner | Actor | 1971 - 1983 | 5 | |
| Malone, Sharon | Sharon Malone | Costume Designer | 1972 | 1 | |
| Maier, Ellen | Ellen Maier | Actor | 1972 | 1 | |
| Muller, Franz | Franz Muller | Actor | 1899 | 1 | |
| Muller, - | - Muller | Actor | 1899 | 1 | |
| Martinsons, Anatols | Anatols Martinsons | Actor | 1975 | 1 | |
| Muceniece, Ilga | Ilga Muceniece | Actor | 1964 - 1975 | 2 | |
| Mertinz, Johanna | Johanna Mertinz | Actor | 1975 | 1 | |
| Madden, Sharon | Sharon Madden | Actor | 1973 | 1 | |
| Miller, Carol | Carol Miller | Actor | 1976 - 1977 | 2 | |
| Muhr, Michael | Michael Muhr | Adaptation, Translator | 1975 - 2009 | 7 | |
| Mebus, Eduard | Eduard Mebus | Actor | 1900 | 1 | |
| Maurer, Marie, von | Marie von Maurer | Actor | 1900 - 1912 | 4 | |
| Mies, Lisa | Lisa Mies | Actor | 2014 | 1 | |
| Müller-Elmau, Alexander | Alexander Müller-Elmau | Designer | 2014 | 1 | |
| Matousch, Stefan | Stefan Matousch | Actor | 2006 - 2015 | 3 | |
| Müller, Luitpold | Luitpold Müller | Actor | 1981 | 1 | |
| Mohr, Bernd | Bernd Mohr | Actor | 1979 | 1 | |
| Machoninová, Lenka | Lenka Machoninová | Actor | 1973 | 1 | |
| Mesch, Marie | Marie Mesch | Actor | 1889 | 1 | |
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