| Morvan, Tifenn | Tifenn Morvan | Costume Designer | 2010 - 2012 | 3 | |
| Miller, Missy | Missy Miller | Actor | 2010 | 1 | |
| Metz, Sarah | Sarah Metz | Actor | 2010 | 1 | |
| McGrath, Anne | Anne McGrath | Actor | 2010 | 1 | |
| Marable Jr., Eric, E. | Eric E. Marable Jr. | Actor | 2010 | 1 | |
| Martinková, Veronika | Veronika Martinková | Actor | 2011 | 1 | |
| Mess, Attila | Attila Mess | Actor | 2011 | 2 | |
| Manzano, Carolina | Carolina Manzano | Actor, Adaptation, Dramaturg, Producer | 2011 - 2012 | 8 | |
| Montenegro, Carlos | Carlos Montenegro | Actor | 2011 - 2012 | 2 | |
| Miranda, Miguel | Miguel Miranda | Composer | 2011 - 2018 | 2 | |
| Montano, Sharon | Sharon Montano | Costume Designer | 2011 | 1 | |
| Murphy, Sue | Sue Murphy | Actor | 2011 | 1 | |
| Melchert, Uwe | Uwe Melchert | Actor | 2011 | 1 | |
| Mardzoeki, Faiza | Faiza Mardzoeki | Adaptation, Translator | 2011 | 2 | |
| Major, Melinda | Melinda Major | Actor | 2002 - 2011 | 2 | |
| Munley, Shannon | Shannon Munley | Actor | 2012 | 1 | |
| McCasland, Steven, Carl | Steven Carl McCasland | Director | 2012 | 1 | |
| Michaels, David | David Michaels | Actor | 2012 | 1 | |
| McCormack, Sanchia | Sanchia McCormack | Actor | 2012 | 1 | |
| Manger, Burkhard | Burkhard Manger | Costume Designer, Designer | 1984 | 2 | |
| Matheis, Ilse | Ilse Matheis | Actor | 1984 | 1 | |
| Maagaard, Jan | Jan Maagaard | Adaptation, Director, Translator | 1992 - 2002 | 7 | |
| Mazák, Jan | Jan Mazák | Actor | 1984 | 1 | |
| Meierová, Blanka | Blanka Meierová | Actor | 1984 | 1 | |
| McDonnell, Emily, Cass | Emily Cass McDonnell | Actor | 2013 | 1 | |
| Munk, Holger | Holger Munk | Actor | 1964 - 1978 | 2 | |
| Markle, Christopher | Christopher Markle | Director | 1984 | 1 | |
| MacIntosh, Joan | Joan MacIntosh | Actor | 1984 | 1 | |
| McCann, Christopher | Christopher McCann | Actor | 1984 - 2001 | 5 | |
| Maas, Hidde | Hidde Maas | Actor | 1984 - 1989 | 37 | |
| Mayer, Christian | Christian Mayer | Dramaturg | 2007 - 2012 | 2 | |
| Morgan, Caryl | Caryl Morgan | Actor | 2012 | 2 | |
| Ma, Benjamin | Benjamin Ma | Actor | 2001 | 1 | |
| Moore, Vivienne | Vivienne Moore | Actor | 2012 | 2 | |
| Metzger, Sam | Sam Metzger | Actor | 2012 | 1 | |
| Matthisen, Roger | Roger Matthisen | Actor | 2001 | 2 | |
| McKitrick, Charlie | Charlie McKitrick | Actor | 2012 | 1 | |
| Mestre, Carmen | Carmen Mestre | Actor | 2012 | 1 | |
| Merry, Alice | Alice Merry | Actor | 2012 | 1 | |
| Magennis, Dermot | Dermot Magennis | Actor | 2012 - 2013 | 2 | |
| Mobley, James | James Mobley | Designer | 2012 | 1 | |
| Maddison, Diana | Diana Maddison | Actor | 2012 | 1 | |
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