| Martínez, Lilia | Lilia Martínez (Lilia Martínez) | Actor | 1954 - 1956 | 2 | |
| Mateos, Héctor | Héctor Mateos (Héctor Mateos) | Actor | 1954 - 1956 | 2 | |
| Matute, Ivaro | Álvaro Matute (Ivaro Matute) | Actor | 1954 - 1956 | 2 | |
| Muñoz, José | José Muñoz (José Muñoz) | Actor | 1954 - 1956 | 2 | |
| Massey, Anna | Anna Massey (Anna Massey) | Actor | 1970 - 1973 | 2 | |
| Malek-Nasr, Yasmen | Yasmen Malek-Nasr (Yasmen Malek-Nasr) | Actor | 1993 | 1 | |
| Mehrjul, Dariush | Dariush Mehrjul (Dariush Mehrjul) | Director | 1993 | 1 | |
| Mori, Mitsuya | Mitsuya Mori (Mitsuya Mori) | Adaptation, Director, Translator | 1967 - 2016 | 124 | |
| McGuinness, Frank | Frank McGuinness (Frank McGuinness) | Adaptation, Producer, Translator | 1987 - 2020 | 140 | |
| Mills, Grace | Grace Mills (Grace Mills) | Actor | 1936 - 1938 | 12 | |
| Meyers, Lorna Lynn | Lorna Lynn Meyers (Lorna Lynn Meyers) | Actor | 1937 - 1938 | 7 | |
| Major, Tamás | Tamás Major (Tamás Major) | Actor | 1931 - 1941 | 7 | |
| Munkeby, Jørgen | Jørgen Munkeby (Jørgen Munkeby) | Composer | 2006 - 2011 | 5 | |
| Mejerchol'd, Vsevolod Ė. | Vsevolod Ė. Mejerchol'd (Vsevolod Ė. Mejerchol'd) | Director | 1906 - 1907 | 2 | |
| Morozova, - | - Morozova (- Morozova) | Actor | 1914 | 1 | |
| Moser, William | William Moser (William Moser) | Costume Designer, Designer | 1996 - 2005 | 2 | |
| Matthiessen, Artus-Maria | Artus-Maria Matthiessen (Artus-Maria Matthiessen) | Actor | 1990 | 1 | |
| Mammadov, Sabuhi | Sabuhi Mammadov (Sabuhi Mammadov) | Sound Designer | 2006 | 1 | |
| Mirgasimova, Ayan | Ayan Mirgasimova (Ayan Mirgasimova) | Choreographer | 2006 | 1 | |
| Mammadova, Ganira | Ganira Mammadova (Ganira Mammadova) | Actor | 2004 | 1 | |
| Mannervall, Marie-Louise | Marie-Louise Mannervall (Marie-Louise Mannervall) | Actor | 1970 | 1 | |
| Moritzen, Henning | Henning Moritzen (Henning Moritzen) | Actor | 1957 - 2000 | 5 | |
| Malahide, Patrick | Patrick Malahide (Patrick Malahide) | Actor | 1992 - 1994 | 4 | |
| Morska-Popławska, Gabriela | Gabriela Morska-Popławska (Gabriela Morska-Popławska) | Actor | 1900 - 1908 | 7 | |
| Molina, Nicolás Posse | Nicolás Posse Molina (Nicolás Posse Molina) | Composer | 2001 | 1 | |
| Machín, Luis | Luis Machín (Luis Machín) | Actor | 2001 | 1 | |
| Michelsen, Lars | Lars Michelsen (Lars Michelsen) | Actor | 1876 - 1889 | 43 | |
| Michelsen, Anna | Anna Michelsen (Anna Michelsen) | Actor | 1880 - 1882 | 3 | |
| Martin, Anna | Anna Martin (Anna Martin) | Actor | 2003 | 1 | |
| Mihályfi, Béla | Béla Mihályfi (Béla Mihályfi) | Actor | 1928 - 1932 | 3 | |
| Matioc, Adrian | Adrian Matioc (Adrian Matioc) | Actor | 2004 - 2018 | 11 | |
| Mishima, Keita | Keita Mishima (Keita Mishima) | Actor | 1993 | 1 | |
| Ming, Gu | Gu Ming (Gu Ming) | Designer | 1998 - 2006 | 4 | |
| Malmé, Mona | Mona Malmé (Mona Malmé) | Actor | 1954 | 1 | |
| Meyerhoff, Juliane | Juliane Meyerhoff (Juliane Meyerhoff) | Actor | 1976 - 2009 | 2 | |
| Möller, Florian | Florian Möller (Florian Möller) | Actor | 2003 | 1 | |
| Marenbach, Leny | Leny Marenbach (Leny Marenbach) | Actor | 1934 | 1 | |
| Meyer, Marie | Marie Meyer (Marie Meyer) | Actor | 1878 - 1904 | 15 | |
| Mährdel, Emil | Emil Mährdel (Emil Mährdel) | Actor | 1900 - 1904 | 11 | |
| Markus, Tarja | Tarja Markus (Tarja Markus) | Actor | 1967 - 1977 | 2 | |
| Morawiecz, Barbara | Barbara Morawiecz (Barbara Morawiecz) | Actor | 1995 | 1 | |
| Molina, Daniela | Daniela Molina (Daniela Molina) | Actor | 1995 | 1 | |
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