| Marquaille, - | - Marquaille | Actor | 1935 | 2 | |
| Martinez, Félix | Félix Martinez | Actor | 2014 - 2015 | 2 | |
| Marchini, Bruno | Bruno Marchini | Costume Designer | 2014 - 2015 | 2 | |
| Millot, Elisa | Elisa Millot | Assistant Director | 2014 - 2015 | 2 | |
| Monier-Esquis, Isabelle | Isabelle Monier-Esquis | Actor | 2015 | 2 | |
| Meigné, Benoît | Benoît Meigné (Meigne, Benoît) | Director | 2015 | 2 | |
| Munier, Anthony | Anthony Munier | Actor | 2015 | 2 | |
| Munier, Karine | Karine Munier | Costume Designer | 2015 | 2 | |
| Moscarelli, Aniko | Aniko Moscarelli | Actor | 2021 | 2 | |
| McCrohan, Conor | Conor McCrohan | Assistant Director, Composer | 2016 | 2 | |
| Mittal, Shilpa | Shilpa Mittal | Actor, Producer | 2008 | 2 | |
| McCarthy, Jefferson | Jefferson McCarthy | Composer, Sound Designer | 2021 | 2 | |
| Mátay, Livia | Livia Mátay | Designer | 1986 - 1988 | 2 | |
| Morris, Aubrey | Aubrey Morris | Actor | 1972 | 2 | |
| Munro, Nan | Nan Munro | Actor | 1956 - 1957 | 2 | |
| Medford, Don | Don Medford | Director | 1954 - 1959 | 2 | |
| McCallum, Neil | Neil McCallum | Actor | 1955 - 1958 | 2 | |
| Moll, George B. | George B. Moll | Actor | 1941 | 2 | |
| Mildehav, Linn | Linn Mildehav | Actor | 2022 | 2 | |
| Marceau, Marianne | Marianne Marceau | Actor | 2022 | 2 | |
| McCoy, Kevin | Kevin McCoy | Actor | 2022 | 2 | |
| Marholia, Roman | Roman Marholia | Director, Dramaturg | | 2 | |
| Marinelli, Alessandro | Alessandro Marinelli | Director, Dramaturg | 2022 | 2 | |
| Martinez, Carla | Carla Martinez | Designer | 2022 | 2 | |
| Mata, José | José Mata | Actor | 2022 | 2 | |
| Michaelian, Eric | Eric Michaelian | Actor | 2022 | 2 | |
| Morrison, Julie | Julie Morrison | Actor | 2022 | 2 | |
| Mena, Carlota de | Carlota de Mena | Actor | 1893 - 1900 | 2 | |
| Marquerie, Alfredo | Alfredo Marquerie | Adaptation | 1963 | 2 | |
| Muñoz, Amelia | Amelia Muñoz | Actor | 1963 | 2 | |
| Manev, Martin | Martin Manev (Мартин Манев) | Actor, Set Designer | 2012 - 2020 | 2 | |
| Montenegro, Ángela | Ángela Montenegro | Actor | 1974 - 1978 | 2 | |
| Mota, Jimena la | Jimena la Mota | Actor | 2015 | 2 | |
| Mayo, Anna | Anna Mayo | Actor | 2015 | 2 | |
| Márquez, Iria | Iria Márquez | Adaptation, Director | 2016 | 2 | |
| Muro, Pilar S. | Pilar S. Muro | Costume Designer | 1968 - 1969 | 2 | |
| Moragas, Miquel | Miquel Moragas | Set Designer | 1903 - 1906 | 2 | |
| Michelsen, Anna | Anna Michelsen (Anna Michelsen) | Actor | 1880 - 1882 | 3 | |
| Mihályfi, Béla | Béla Mihályfi (Béla Mihályfi) | Actor | 1928 - 1932 | 3 | |
| Manz, Andreas | Andreas Manz (Andreas Manz) | Actor, Director | 2007 - 2009 | 3 | |
| Malcolm, Roy | Roy Malcolm (Roy Malcolm) | Actor | 1926 - 1930 | 3 | |
| Margulies, Pär | Pär Margulies (Pär Margulies) | Actor | 1985 - 1990 | 3 | |
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