| McInnerny, Tim | Tim McInnerny | Actor | 2003 - 2010 | 6 | 1 |
| Mason, Chad | Chad Mason | Actor, Musical Director | 2001 | 6 | |
| Metzikof, Giannis | Giannis Metzikof | Costume Designer, Designer | 2003 - 2008 | 6 | |
| Masliah, Laurence | Laurence Masliah | Actor | 2003 | 6 | |
| Münch, Marion | Marion Münch | Costume Designer | 2003 - 2013 | 6 | |
| Metzen, Marlon | Marlon Metzen | Adaptation, Composer, Director | 2004 - 2006 | 6 | 1 |
| McDevitt, Lorna | Lorna McDevitt | Actor | 2005 | 6 | |
| McCallum, Eileen | Eileen McCallum | Actor | 2005 | 6 | |
| Moltzen, Peter | Peter Moltzen | Actor | 2005 - 2007 | 6 | 1 |
| Meyn, Tilman | Tilman Meyn | Actor | 2005 - 2007 | 6 | |
| Marston, Cathy | Cathy Marston | Adaptation, Choreographer | 2005 - 2008 | 6 | 1 |
| Monthie, Jessica | Jessica Monthie | Actor | 2001 | 6 | |
| Morgenstern, Maia | Maia Morgenstern | Actor | 1985 | 6 | |
| Molina, Olivia | Olivia Molina | Actor | 2007 | 6 | |
| Miguel, Chema, de | Chema de Miguel | Actor | 2007 | 6 | |
| Maciá, Carlos | Carlos Maciá | Actor | 2006 - 2007 | 6 | |
| Maciá, Ximo | Ximo Maciá | Lighting Designer | 2006 - 2007 | 6 | |
| Michalakopoulos, Giorgos | Giorgos Michalakopoulos | Actor, Director | 1984 - 2008 | 6 | |
| Michailov, Mihaela | Mihaela Michailov | Dramaturg | 2015 - 2016 | 6 | 1 |
| Morariu, Andrei | Andrei Morariu | Designer | 2015 - 2016 | 6 | |
| Meira, Ana | Ana Meira | Actor | 2006 - 2007 | 6 | |
| Marrafa, Maria | Maria Marrafa | Actor | 2006 - 2007 | 6 | |
| Marand, Nader, Borhani | Nader Borhani Marand | Adaptation, Director, Dramaturg | 2008 - 2009 | 6 | 1 |
| Maucher, Marion | Marion Maucher | Actor | 2008 - 2011 | 6 | 1 |
| Mytaras, Dimitris | Dimitris Mytaras | Costume Designer, Designer | 1965 - 1966 | 6 | |
| Müller, Hans Jürgen | Hans Jürgen Müller | Actor | 1991 - 1993 | 6 | |
| Mächtlinger, Otto | Otto Mächtlinger | Actor | 1971 - 1973 | 6 | |
| McClish, Amanda | Amanda McClish | Actor | 2009 | 6 | |
| Mercer, Bryan | Bryan Mercer | Actor | 2009 | 6 | |
| Maultzsch, Stefan | Stefan Maultzsch | Actor | 2010 | 6 | |
| Mack, Billy | Billy Mack | Actor | 2009 - 2021 | 6 | |
| Moliner, Benjamin | Benjamin Moliner | Actor | 2009 - 2011 | 6 | |
| Morell, Andre | Andre Morell | Actor | 1950 - 1964 | 6 | |
| Marull, Laia | Laia Marull | Actor | 1996 - 2013 | 6 | |
| Möst, Raphaela | Raphaela Möst | Actor | 2012 - 2017 | 6 | 1 |
| Marinescu, Ion | Ion Marinescu | Actor | 1965 - 1984 | 6 | |
| Mathieu, Claude | Claude Mathieu | Actor | 2012 | 6 | |
| Myrat, Dimitris | Dimitris Myrat | Actor | 1939 - 1990 | 6 | |
| Matte, Emmanuel | Emmanuel Matte | Actor | 2013 | 6 | |
| Maelzer, Mia | Mia Maelzer | Actor | 2016 - 2017 | 6 | |
| MacKay, Fulton | Fulton MacKay | Actor | 1959 - 1968 | 6 | |
| Mösl, Christian | Christian Mösl | Actor | 2013 | 6 | |
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