| Morelle, Cécile | Cécile Morelle | Actor | 2012 | 4 | |
| Myers, Anne | Anne Myers | Composer | 1964 | 1 | |
| Mugur, Vlad | Vlad Mugur | Director | 1964 - 1965 | 2 | |
| Matcaboji, Mircea | Mircea Matcaboji | Designer | 1963 - 1974 | 5 | |
| Mottoi, George | George Mottoi | Actor | 1964 - 1965 | 2 | |
| Marell, - | - Marell | Actor | 1909 | 1 | |
| Motzfeldt, Alfhild | Alfhild Motzfeldt | Translator | 1963 | 1 | |
| Mariani, Mario | Mario Mariani | Actor | 1954 - 1963 | 2 | |
| May, Val | Val May | Director | 1958 - 1971 | 4 | |
| Maguire, Leo | Leo Maguire | Actor | 1963 | 1 | |
| Munteanu, Getica (Otilia ?) | Getica (Otilia ?) Munteanu | Actor | 1963 | 1 | |
| Markham, Joseph, R. | Joseph R. Markham | Costume Designer | 1963 | 1 | |
| Malinowski, John | John Malinowski | Lighting Designer | 2012 | 1 | |
| Mallen, Christian | Christian Mallen | Actor | 2016 | 1 | |
| Montelius, Olle | Olle Montelius | Costume Designer, Designer | 1949 - 1963 | 5 | |
| Murphy, Diane | Diane Murphy | Designer | 1963 | 1 | |
| Milatz, Ulrich, E. | Ulrich E. Milatz | Designer | 1963 | 1 | |
| Musäus, Hans | Hans Musäus | Actor | 1963 | 1 | |
| Meissner, Werner | Werner Meissner | Actor | 1963 | 1 | |
| McKenzie, Janice | Janice McKenzie | Actor | 2012 | 1 | |
| Morse, LB | LB Morse | Lighting Designer | 2012 | 1 | |
| Moore, Shanae’a | Shanae’a Moore | Actor | 2016 - 2020 | 2 | |
| Masterson, Carl | Carl Masterson | Actor | 2016 - 2020 | 3 | |
| McMorrough, Jeff | Jeff McMorrough | Actor | 2016 - 2020 | 2 | |
| Martell, Patricia | Patricia Martell | Actor | 1963 | 1 | |
| Mitterer, Julius | Julius Mitterer | Actor | 1961 - 1981 | 4 | |
| Messa, Jacqueline | Jacqueline Messa | Assistant Director | 1963 | 1 | |
| Mac Moy, Alain | Alain Mac Moy | Actor | 1963 | 1 | |
| Moore, Gary | Gary Moore | Actor | 1963 | 1 | |
| Mawer, Barry | Barry Mawer | Actor | 2012 | 1 | |
| McFarlane, Florence | Florence McFarlane | Actor | 2012 | 1 | |
| Mayne, Ben | Ben Mayne | Actor | 2016 | 1 | |
| Maher, Matt | Matt Maher | Actor | 2016 | 1 | |
| McCormick, Carolyn | Carolyn McCormick | Actor | 1999 - 2016 | 2 | |
| Miles, Ruthie, Ann | Ruthie Ann Miles | Actor | 2016 | 1 | |
| Minifie, Colby | Colby Minifie | Actor | 2016 | 1 | |
| Myer, Marilyn | Marilyn Myer | Actor | 1963 | 1 | |
| Marotta, Robert | Robert Marotta | Actor | 1963 | 1 | |
| Melhardt, Edgar | Edgar Melhardt | Actor | 1962 - 1963 | 2 | |
| Merton, Atle | Atle Merton | Actor | 1962 - 1963 | 2 | |
| Munso, Felix | Felix Munso | Actor | 1963 - 1964 | 3 | |
| Mlalazi, Christopher | Christopher Mlalazi | Adaptation | 2015 - 2016 | 2 | |
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