| McGrew, Melina | Melina McGrew | Actor | 2000 | 1 | |
| McHallem, Christopher | Christopher McHallem | Actor | 1992 | 3 | |
| McInerney, Bernie | Bernie McInerney | Actor | 1975 | 1 | |
| McKereghan, Kevin | Kevin McKereghan | Actor | 1971 | 1 | |
| McKereghan, William | William McKereghan | Actor | 1971 | 1 | |
| McKillop, Ann | Ann McKillop | Actor | 2004 | 1 | |
| McKintosh, Peter, | Peter McKintosh | Designer | 2003 - 2007 | 4 | |
| McLaren, Graham | Graham McLaren | Designer, Director | 2004 - 2013 | 18 | |
| McLeish, Kenneth | Kenneth McLeish | Adaptation, Translator | 1990 - 2015 | 35 | |
| McMahon, Charles | Charles McMahon | Actor, Director | 1999 - 2005 | 2 | |
| McMillan, Carrie | Carrie McMillan | Actor | 1971 | 1 | |
| McMullan, Sherida | Sherida McMullan | Actor | 2001 | 1 | |
| McNae, Jenny | Jenny McNae | Actor | 1991 | 1 | |
| McNally, Mary | Mary McNally | Actor | 2000 | 1 | |
| McNamara, Cienda | Cienda McNamara | Director | 2008 | 1 | |
| McPhedrin, Joan | Joan McPhedrin | | | | |
| McRae, Bruce, | Bruce McRae | Actor | 1905 - 1908 | 7 | |
| McRae, Hilton | Hilton McRae | Actor | 1993 - 2003 | 3 | |
| McSorley, Gerard | Gerard McSorley | Actor | 1993 | 1 | |
| McSweeney, Kevin | Kevin McSweeney | Director | 2001 | 2 | |
| McWilliams, Jack | Jack McWilliams | Actor | 1928 | 2 | |
| Meader, Derek | Derek Meader | Actor | 1975 - 1995 | 9 | |
| Medalis, Joseph | Joseph Medalis | Actor | 1974 | 1 | |
| Medina, Estela, | Estela Medina | Actor | 1954 - 1979 | 3 | |
| Medina, Kristopher | Kristopher Medina | Actor | 2003 - 2011 | 35 | |
| Meduna, Jaromír | Jaromír Meduna | Actor | 1999 | 1 | |
| Meeker, Dan, | Dan Meeker | Designer, Lighting Designer | 2003 | 2 | |
| Mehring, Horst | Horst Mehring | Actor | 1971 - 1975 | 3 | |
| Mehrjui, Dariush | Dariush Mehrjui | Producer | 1993 | 1 | |
| Meinhold, Reinhard | Reinhard Meinhold | Costume Designer | 1972 | 1 | |
| Mei-sim, Chan | Chan Mei-sim | Choreographer | 2001 | 1 | |
| Meister, Karel | Karel Meister | Actor | 1961 - 1966 | 2 | |
| Meixner, Karl, | Karl Meixner | Actor | 1928 - 1975 | 4 | |
| Mejlænder-Hellesen, Marie, | Marie Mejlænder-Hellesen | Actor | 1891 - 1921 | 16 | |
| Melander, Björn, | Björn Melander | Adaptation, Director | 1999 - 2008 | 6 | |
| Melbourne, Dale | Dale Melbourne | Actor | 1944 - 1945 | 4 | |
| Melchert, Arne, | Arne Melchert | Actor | 1924 - 1944 | 2 | |
| Melichar, Rudolf, | Rudolf Melichar | Actor | 1957 - 2010 | 6 | |
| Mell, Maria, | Maria Mell | Actor | 1909 - 1952 | 13 | |
| Mellberg, Johanna, | Johanna Mellberg | Actor | 1999 | 1 | |
| Mellberg, Rasmus | Rasmus Mellberg | Actor | 1980 | 1 | |
| Melldahl, Åsa | Åsa Melldahl | Director | 2000 - 2007 | 3 | |
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