| Morgans, Lloyd | Lloyd Morgans | Actor | 2012 | 1 | |
| McEvoy, Ewan | Ewan McEvoy | Actor | 2012 | 1 | |
| McEvoy, Lara | Lara McEvoy | Actor | 2012 | 1 | |
| Morris, Judy | Judy Morris | Actor | 1984 | 1 | |
| Mettin, Stephan | Stephan Mettin | Costume Designer, Director | 1992 - 2000 | 3 | |
| McDonald, Antony | Antony McDonald | Designer | 1984 | 1 | |
| Melchior, Günter | Günter Melchior | Actor | 1991 | 1 | |
| Morosi, Ugo Maria | Ugo Maria Morosi | Actor | 1984 - 1985 | 2 | |
| Mannering, Adam | Adam Mannering | Actor | 2012 | 1 | |
| Morgan, Huw | Huw Morgan | Actor | 2012 | 1 | |
| Mitchinson, Liam | Liam Mitchinson | Director | 2012 | 1 | |
| Munro, Desiree | Desiree Munro | Actor | 2012 | 1 | |
| Mazáčová, Zuzana | Zuzana Mazáčová | Costume Designer, Designer | 2012 - 2016 | 2 | |
| Mathauserová, Hana | Hana Mathauserová | Actor | 2012 | 1 | |
| Madi, Bassel | Bassel Madi | Actor | 2013 | 1 | |
| Matschulat, Annelise | Annelise Matschulat | Actor | 1984 | 3 | |
| Meisner, Carl | Carl Meisner | Actor | 2013 | 1 | |
| Mariani, Natalia | Natalia Mariani | Actor | 2013 | 3 | |
| Marcell, Bodil | Bodil Marcell | Mask Maker | 1984 | 1 | |
| Matranga, David | David Matranga | Actor | 2013 | 1 | |
| Molano, Melissa | Melissa Molano | Actor | 2013 | 1 | |
| Mogg, Nann | Nann Mogg | Actor | 1984 | 2 | |
| Mitchko, Janet | Janet Mitchko | Actor | 1984 | 1 | |
| Meyer, Ernst | Ernst Meyer | Actor | 1957 - 1966 | 2 | |
| McEachern, Ann | Ann McEachern | Actor | 1984 | 1 | |
| Markovich, Terrence | Terrence Markovich | Actor | 1984 | 5 | |
| McMurtrey, Joan | Joan McMurtrey | Actor | 1984 | 2 | |
| Morfogen, George | George Morfogen | Actor | 1984 | 1 | |
| Mehring, Oscar | Oscar Mehring | Actor | 1904 - 1907 | 4 | |
| Mashaw, Mark | Mark Mashaw | Actor | 1984 | 1 | |
| Mitchell, David | David Mitchell | Actor | 1961 - 1984 | 2 | |
| Mirkovic, Maja | Maja Mirkovic | Costume Designer | 2012 - 2015 | 2 | |
| Mitchell, Tim | Tim Mitchell | Lighting Designer | 2010 - 2013 | 3 | |
| Manson, Amy | Amy Manson | Actor | 2013 | 1 | |
| McMonagle, Kevin | Kevin McMonagle | Actor | 2009 - 2013 | 2 | |
| McEvoy, Lucianne | Lucianne McEvoy | Actor | 2013 | 1 | |
| McCardie, Brian | Brian McCardie | Actor | 2013 - 2015 | 5 | |
| McCullough, Zak | Zak McCullough | Actor | 2013 | 1 | |
| Maula, McKenzie | McKenzie Maula | Actor | 2013 | 1 | |
| Matte, Olivia | Olivia Matte | Actor | 2013 | 1 | |
| Murray, Nancy | Nancy Murray | Director | 2013 | 1 | |
| Meister, William, B. | William B. Meister | Actor | 2013 | 1 | |
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