| Morgen, Gisela | Gisela Morgen | Actor | 1951 - 1964 | 2 | |
| Morgenstern, Holger | Holger Morgenstern | Actor | 1995 | 2 | |
| Mori, Masao | Masao Mori | Actor | 1940 - 1946 | 2 | |
| Möring, Brigitte | Brigitte Möring | Actor | 1978 - 1981 | 2 | |
| Mortensen, Lia | Lia Mortensen | Actor | 2001 | 2 | |
| Mortensen, Marianne | Marianne Mortensen | Actor | 1990 - 2002 | 2 | 1 |
| Mühlhan, Margarethe | Margarethe Mühlhan | Actor | 1946 - 1954 | 2 | |
| Muller, Mathieu | Mathieu Muller | Actor | 2000 - 2003 | 2 | |
| Müller, Carl | Carl Müller | Actor | 1961 - 1970 | 2 | |
| Müller, Jens | Jens Müller | Actor | 1993 | 2 | |
| Müller, Karl-Frank | Karl-Frank Müller | Actor | 1992 - 1999 | 2 | |
| Müller, Liselotte | Liselotte Müller | Actor | 1972 - 1980 | 2 | |
| Müller, Mounia | Mounia Müller | Actor | 1993 | 2 | |
| Mumford, Stephanie | Stephanie Mumford | Actor, Costume Designer | 2002 | 2 | 1 |
| Murphy, Sean | Sean Murphy | Actor | 1971 - 2011 | 2 | |
| Murray, Rupert | Rupert Murray | Lighting Designer | 1984 - 1993 | 2 | |
| Musial, Magdalena | Magdalena Musial | Costume Designer, Designer | 2000 | 2 | |
| Mutalipassi, Loredana | Loredana Mutalipassi | Lighting Designer, Sound Designer | 2006 | 2 | |
| Madsen, Frederik | Frederik Madsen | Actor | 1876 - 1880 | 2 | |
| Montarello, Jose | Jose Montarello | Actor | 1986 | 2 | |
| Myers, Troy | Troy Myers | Actor | 2006 | 2 | 1 |
| Moore, Eva Mae | Eva Mae Moore | Actor | 1928 | 2 | |
| Mari, Febo | Febo Mari | Actor, Director | 1919 | 2 | |
| Mihályfi, Mihályfi | Mihályfi Mihályfi | Actor | 1889 - 1890 | 2 | |
| Morgen, Therese | Therese Morgen | Actor | 1916 - 1921 | 2 | |
| Michels, Hans Herbert | Hans Herbert Michels | Actor | 1934 - 1958 | 2 | |
| Mabusenko, V. | V. Mabusenko | Designer | 1999 - 2000 | 2 | |
| Musina, O. | O. Musina | Actor | 1999 - 2000 | 2 | |
| Markworth, Trevor | Trevor Markworth | Actor | 2000 - 2002 | 2 | |
| Malmierca, Álvaro | Álvaro Malmierca | Adaptation, Translator | 1999 | 2 | |
| Michałowski, Janusz | Janusz Michałowski | Actor | 1994 | 2 | |
| Mendizabal, Nelly | Nelly Mendizabal | Actor | 1954 - 1955 | 2 | |
| Martin, Thomas | Thomas Martin | Actor | 1953 - 1992 | 2 | |
| Mercurio, Maria Giovanna | Maria Giovanna Mercurio | Costume Designer | 1993 - 1994 | 2 | |
| Meløy, Marianne | Marianne Meløy | Actor | 1994 - 2010 | 2 | 2 |
| Mosarov, Vladimir | Vladimir Mosarov | Director, Sound Designer | 2001 | 2 | |
| Moaleş, Elena | Elena Moaleş | Actor | 2006 | 2 | |
| Münch, Ursula | Ursula Münch | Actor | 1990 - 1992 | 2 | |
| Melsert, W. v.d. Horst-van der Lugt | Wilhelmina van der Horst-van der Lugt Melsert (W. v.d. Horst-van der Lugt Melsert) | Actor | 1911 - 1926 | 2 | |
| Merin, Eda Reiss | Eda Reiss Merin | Actor | 1971 | 2 | 1 |
| Macedonio, Francesco | Francesco Macedonio | Director | 1974 | 2 | |
| McEntee, Frank | Frank McEntee | Actor, Director | 1921 | 2 | |
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