| Manz, Andreas | Andreas Manz (Andreas Manz) | Actor, Director | 2007 - 2009 | 3 | |
| Malmström, Ernst | Ernst Malmström (Ernst Malmström) | Actor, Director | 1879 - 1912 | 40 | |
| Makwarth, Miskow | Miskow Makwarth (Miskow Makwarth) | Actor, Director | 1941 - 1944 | 4 | |
| Mann, Emily | Emily Mann (Emily Mann) | Actor, Director | 1979 - 1996 | 4 | |
| Mantzius, Karl | Karl Mantzius (Karl Mantzius) | Actor, Director | 1885 - 1914 | 26 | 4 |
| Maranzana, Mario | Mario Maranzana (Mario Maranzana) | Actor, Director | 1974 - 1998 | 8 | |
| Maruyama, Sadao | Sadao Maruyama (Sadao Maruyama) | Actor, Director | 1925 - 1936 | 4 | |
| McMahon, Charles | Charles McMahon (Charles McMahon) | Actor, Director | 1999 - 2005 | 2 | |
| Meyn, Robert | Robert Meyn (Robert Meyn) | Actor, Director | 1935 - 1952 | 5 | |
| Mielche, Edouard | Edouard Mielche (Edouard Mielche) | Actor, Director | 1935 - 2003 | 12 | |
| Mierlauks, Aleksis | Aleksis Mierlauks (Aleksis Mierlauks) | Actor, Director | 1905 - 1921 | 7 | |
| Mislin, Marcus | Marcus Mislin (Marcus Mislin) | Actor, Director | 1987 - 2013 | 7 | 1 |
| Montor, Max | Max Montor (Max Montor) | Actor, Director | 1899 - 1931 | 27 | |
| Mowinckel, Agnes | Agnes Mowinckel (Agnes Mowinckel) | Actor, Director | 1899 - 1959 | 135 | |
| Müller, Ludvig | Ludvig Müller (Ludvig Müller) | Actor, Director | 1897 - 1913 | 19 | 1 |
| Myrann Sørbøe, Ilene | Ilene Myrann Sørbøe (Ilene Myrann Sørbøe) | Actor, Director | 1999 - 2015 | 7 | |
| Mari, Febo | Febo Mari (Febo Mari) | Actor, Director | 1919 | 2 | |
| Mitra, Tripti | Tripti Mitra (Tripti Mitra) | Actor, Director | 1952 - 1981 | 3 | |
| Mansfield, Richard | Richard Mansfield (Richard Mansfield) | Actor, Director | 1889 - 1907 | 24 | |
| McEntee, Frank | Frank McEntee (Frank McEntee) | Actor, Director | 1921 | 2 | |
| Moor, Louis B. J. | Louis B. J. Moor (Louis B. J. Moor) | Actor, Director | 1880 - 1891 | 4 | |
| Marr, Hans | Hans Marr (Hans Marr) | Actor, Director | 1904 - 1938 | 101 | |
| Marx, Emil | Emil Marx (Emil Marx) | Actor, Director | 1898 | 3 | |
| Malcolm, Grant | Grant Malcolm (Grant Malcolm) | Actor, Director | 2000 - 2022 | 2 | |
| Marshall, Caleb | Caleb Marshall (Caleb Marshall) | Actor, Director | 2011 | 4 | |
| Mahmood, Barez Majeed | Barez Majeed Mahmood (Barez Majeed Mahmood) | Actor, Director | 2011 | 2 | |
| Manning, Dr. Philipp | Philipp Manning (Dr. Philipp Manning) | Actor, Director | 1898 - 1937 | 21 | |
| Makhdoomi, Roham | Roham Makhdoomi (Roham Makhdoomi) | Actor, Director | 2006 | 2 | |
| Mielewski, Andrzej | Andrzej Mielewski (Andrzej Mielewski) | Actor, Director | 1894 - 1914 | 17 | |
| Mehnert, Lothar | Lothar Mehnert (Lothar Mehnert) | Actor, Director | 1895 - 1920 | 10 | |
| Muceniece, Otīlija | Otīlija Muceniece (Otīlija Muceniece) | Actor, Director | 1897 - 1923 | 11 | |
| Martini, Willy | Willy Martini (Willy Martini) | Actor, Director | 1900 - 1904 | 4 | |
| Meinhard, Carl | Carl Meinhard (Carl Meinhard) | Actor, Director | 1901 - 1919 | 14 | |
| Mauth, Karl | Karl Mauth (Karl Mauth) | Actor, Director | 1903 - 1917 | 6 | |
| Moebius, Eugen | Eugen Moebius (Eugen Moebius) | Actor, Director | 1904 - 1911 | 5 | |
| Mamelok, Emil | Emil Mamelok (Emil Mamelok) | Actor, Director | 1909 - 1945 | 17 | |
| Momber, August | August Momber (August Momber) | Actor, Director | 1910 - 1947 | 4 | |
| Müller, Hans Carl | Hans Carl Müller (Hans Carl Müller) | Actor, Director | 1913 - 1935 | 3 | |
| Müller-Hanno, Otto | Otto Müller-Hanno (Otto Müller-Hanno) | Actor, Director | 1916 - 1938 | 13 | |
| Melchinger, Alfons | Alfons Melchinger (Alfons Melchinger) | Actor, Director | 1921 - 1927 | 3 | |
| Müthel, Lothar | Lothar Müthel (Lothar Müthel) | Actor, Director | 1923 - 1956 | 10 | |
| Martini, Ferdinand | Ferdinand Martini (Ferdinand Martini) | Actor, Director | 1901 - 1927 | 4 | |
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