| Mian, Daniel | Daniel Mian | Actor | 2004 - 2012 | 2 | |
| Michael, Pierre, | Pierre Michael | Actor | 1976 - 1980 | 2 | |
| Michaelis, Ruscha, | Ruscha Michaelis | Actor | 1897 - 1898 | 2 | |
| Migliardi, Mario, | Mario Migliardi | Composer | 1974 | 2 | |
| Mihai, Mihaela | Mihaela Mihai | Actor | 2006 | 2 | |
| Miiros, Annika | Annika Miiros | Actor | 1980 - 1986 | 2 | |
| Militaru, Sorin | Sorin Militaru | Director | 2006 | 2 | |
| Mirnik, Cveta | Cveta Mirnik | Costume Designer | 1979 - 1986 | 2 | |
| Modrzejewska, Helena, | Helena Modrzejewska | Actor | 1882 - 1885 | 2 | 1 |
| Moe, Stig-Werner, | Stig-Werner Moe | Actor | 1992 - 1996 | 2 | |
| Mohamed, Makbul | Makbul Mohamed | Actor | 2005 - 2006 | 2 | |
| Mohr, Betty | Betty Mohr | Actor | 1934 - 1935 | 2 | |
| Molander, Gustaf | Gustaf Molander | Actor | 1921 - 1925 | 2 | |
| Moldovan, Dorothea | Dorothea Moldovan | Actor | 2006 | 2 | |
| Monaci, Aldo | Aldo Monaci | Actor | 1955 - 1956 | 2 | |
| Monaci, Berto | Berto Monaci | Actor | 1955 - 1956 | 2 | |
| Montagna, Carlo, | Carlo Montagna | Actor | 1974 | 2 | |
| Moore, John | John Moore | Actor | 1957 - 1962 | 2 | |
| Moreno, Mireya | Mireya Moreno | Actor | 2006 - 2011 | 2 | |
| 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 | |
| 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 | |
| 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 | |
| Moore, Eva Mae | Eva Mae Moore | Actor | 1928 | 2 | |
| Mari, Febo | Febo Mari | Actor, Director | 1919 | 2 | |
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