| Mota, Daniela | Daniela Mota (Daniela Mota) | Actor | 2004 | 1 | |
| McNamara, Eileen | Eileen McNamara (Eileen McNamara) | Actor | 1994 | 1 | |
| MacDevitt, Brian | Brian MacDevitt (Brian MacDevitt) | Lighting Designer | 1993 | 1 | |
| Merz, ? | ? Merz (? Merz) | Actor | 1918 - 1919 | 2 | |
| Mumford, Peter | Peter Mumford (Peter Mumford) | Designer, Lighting Designer | 1996 - 2016 | 18 | |
| Moose, Rebekah | Rebekah Moose (Rebekah Moose) | Actor | 1932 | 1 | |
| Murray, Bridget | Bridget Murray (Bridget Murray) | Actor | 2002 | 1 | |
| Morris, Dean | Dean Morris (Dean Morris) | Lighting Designer | 1991 | 1 | |
| McLay, Fiona | Fiona McLay (Fiona McLay) | Actor | 1984 | 1 | |
| Montevecchi, Ferdinando | Ferdinando Montevecchi (Ferdinando Montevecchi) | Lighting Designer | 2005 | 1 | |
| McMahon, Richie | Richie McMahon (Richie McMahon) | Actor | 2006 | 1 | |
| Matsuda, Takashi | Takashi Matsuda (Takashi Matsuda) | Designer | 1958 | 1 | |
| Motoyasu, Yutaka | Yutaka Motoyasu (Yutaka Motoyasu) | Actor | 1914 | 1 | |
| Maceiras, Flor | Flor Maceiras (Flor Maceiras) | Actor | 1995 | 1 | |
| Maddock, Margaret | Margaret Maddock (Margaret Maddock) | Actor | 1993 | 1 | |
| Martin, Mary E. | Mary E. Martin (Mary E. Martin) | Actor | 1933 | 1 | |
| Massaro, Mitch | Mitch Massaro (Mitch Massaro) | Lighting Designer | 2004 | 1 | |
| Malherbe, - | - Malherbe (- Malherbe) | Actor | 1913 | 1 | |
| Mizutani, Yaeko | Yaeko Mizutani (Yaeko Mizutani) | Actor | 1921 - 1924 | 3 | |
| Matsui, Yoko | Yoko Matsui (Yoko Matsui) | Actor | 1924 | 1 | |
| Murakami, Yuji | Yuji Murakami (Yuji Murakami) | Dramaturg, Sound Designer | 2006 - 2008 | 2 | |
| Michajlov, K. | K. Michajlov (K. Michajlov) | Actor | 1959 | 1 | |
| Moodie, Tanya | Tanya Moodie (Tanya Moodie) | Actor | 1994 - 2005 | 7 | |
| McCaul, Ruth Rayyah | Ruth Rayyah McCaul (Ruth Rayyah McCaul) | Actor | 2005 | 1 | |
| Munroe, John | John Munroe (John Munroe) | Lighting Designer | 1981 - 2004 | 2 | |
| Miraisha, - | - Miraisha (- Miraisha) | Designer | 1990 | 1 | |
| Moos, Karl Heinz | Karl Heinz Moos (Karl Heinz Moos) | Dramaturg | 1975 | 1 | |
| Mullin, Bronwen | Bronwen Mullin (Bronwen Mullin) | Composer | 2011 | 1 | |
| Marx, Emil | Emil Marx (Emil Marx) | Actor, Director | 1898 | 3 | |
| Molaee, Reza | Reza Molaee (Reza Molaee) | Actor | 2006 - 2010 | 3 | |
| Mills, Margaret | Margaret Mills (Margaret Mills) | Actor | 1998 | 1 | |
| Madden, Will | Will Madden (Will Madden) | Actor | 2003 | 1 | |
| Malcolm, Grant | Grant Malcolm (Grant Malcolm) | Actor, Director | 2000 - 2022 | 2 | |
| Morgan, Jackie | Jackie Morgan (Jackie Morgan) | Lighting Designer | 1984 | 1 | |
| Mitchell, Gregg | Gregg Mitchell (Gregg Mitchell) | Designer | 1984 | 1 | |
| Mason, Paul | Paul Mason (Paul Mason) | Actor | 1986 | 1 | |
| Milner, Johnny | Johnny Milner (Johnny Milner) | Composer | 2007 | 1 | |
| McLean, Carrie | Carrie McLean (Carrie McLean) | Actor | 2000 | 1 | |
| Moen, Ingvald | Ingvald Moen (Ingvald Moen) | Actor | 1974 | 10 | |
| Modes, Theo | Theo Modes (Theo Modes) | Actor, Designer, Director | 1915 - 1924 | 11 | |
| Montenegro, Ira | Ira Montenegro (Ira Montenegro) | Lighting Designer | 1988 - 1989 | 4 | |
| Melander, Nils | Nils Melander (Nils Melander) | Actor | 2001 | 4 | |
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