| Marlitz, Robert | Robert Marlitz | Actor | 1907 - 1917 | 4 | |
| Moderow, Wilhelmine | Wilhelmine Moderow | Actor | 1917 - 1922 | 4 | |
| Meyer, Otto | Otto Meyer | Actor | 1889 - 1918 | 4 | |
| Märker, Margarethe | Margarethe Märker | Actor | 1912 - 1924 | 4 | |
| Martini, Ferdinand | Ferdinand Martini | Actor, Director | 1901 - 1927 | 4 | |
| Martens, Ernst | Ernst Martens | Actor | 1917 - 1938 | 4 | 1 |
| Mahnke, Adolf | Adolf Mahnke | Designer | 1934 - 1972 | 4 | |
| Milde, Isolde | Isolde Milde | Actor | 1937 - 1946 | 4 | |
| Meyer, James | James Meyer | Actor | 1939 - 1946 | 4 | |
| Meinecke, Max | Max Meinecke | Costume Designer, Designer, Director | 1947 - 1956 | 4 | |
| Massenet, Jules | Jules Massenet | Composer | 1900 - 1917 | 4 | |
| Mijatović, Pavle | Pavle Mijatović | Translator | 1902 - 1928 | 4 | |
| Meech, Owen | Owen Meech | Actor | 1905 - 1910 | 4 | |
| Moustakas, Konstantinos | Konstantinos Moustakas | Actor | 1906 - 1909 | 4 | |
| MacDonald, George | George MacDonald | Actor | 1906 - 1907 | 4 | |
| Mastalski, Zenon | Zenon Mastalski | Actor | 1907 - 1912 | 4 | |
| Montgomery, Florence | Florence Montgomery | Actor | 1907 - 1908 | 4 | 1 |
| Mihelsons, Aleksandrs | Aleksandrs Mihelsons | Actor | 1908 - 1912 | 4 | |
| Meirik, Hans Petter | Hans Petter Meirik | Actor | 1976 - 1993 | 4 | |
| McDiarmid, Ian | Ian McDiarmid | Actor | 1980 - 2011 | 4 | 1 |
| Myhren, Eilev Groven | Eilev Groven Myhren | Actor, Lighting Designer | 1988 - 1995 | 4 | |
| Madshus, Marie | Marie Madshus | Actor | 1999 - 2000 | 4 | |
| Mostraum, Tone | Tone Mostraum | Actor | 2004 - 2020 | 4 | 2 |
| Morales, Muhinjo | Muhinjo Morales | Actor | 2006 | 4 | |
| Madshus, Synne | Synne Madshus | Actor | 2006 - 2007 | 4 | |
| Modell, Ane | Ane Modell | Actor | 2006 | 4 | |
| Mirshahi, Maral | Maral Mirshahi | Actor | 2006 | 4 | |
| Moen, Marita Kristine | Marita Kristine Moen | Actor | 2007 - 2012 | 4 | |
| Meland, Andreas | Andreas Meland | Composer | 2008 - 2010 | 4 | |
| McCall, Brendan | Brendan McCall | Actor, Director, Producer | 2009 - 2020 | 4 | 1 |
| Myhren, Øyonn Groven | Øyonn Groven Myhren | Actor, Choreographer, Dancer, Musician | 1988 - 2010 | 4 | |
| Mathisen, Gjermund | Gjermund Mathisen | Actor | 2010 | 4 | |
| Moshagen, Sigve | Sigve Moshagen | Actor | 2012 - 2013 | 4 | |
| Moshagen, Sondre | Sondre Moshagen | Actor | 2012 - 2013 | 4 | |
| Myhr, Eirik | Eirik Myhr | Composer | 2012 - 2018 | 4 | |
| Makris, Vasilis | Vasilis Makris | Actor | 1911 - 1912 | 4 | |
| Malberg, Henrik | Henrik Malberg | Actor | 1917 - 1948 | 4 | |
| Martini, Mortimer | Mortimer Martini | Actor | 1920 | 4 | |
| Merritt, George | George Merritt | Actor | 1922 - 1925 | 4 | |
| Milev, Geo | Geo Milev | Translator | 1923 - 1924 | 4 | |
| Moore, Frank | Frank Moore | Actor | 1913 - 1928 | 4 | |
| Michelsen, Randi | Randi Michelsen | Actor | 1924 - 1960 | 4 | |
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