| Mattner, Christine | Christine Mattner | Actor | 1965 - 1967 | 2 | |
| Magee, Peter | Peter Magee | Actor | 1967 | 2 | |
| Miller, Nancy | Nancy Miller | Actor | 1967 | 2 | |
| Meister, Ernst | Ernst Meister | Actor | 1962 - 1967 | 2 | |
| Mäkelä, Juha | Juha Mäkelä | Actor | 1967 - 2007 | 2 | |
| Moser, Waltraud | Waltraud Moser | Costume Designer | 1967 | 2 | |
| Marsh, James | James Marsh | Actor, Dancer | 1966 | 2 | |
| Manhardt, Eva | Eva Manhardt | Actor | 1966 | 2 | |
| Maldek, Karl | Karl Maldek | Actor | 1965 - 1966 | 2 | |
| Manhardt, Peter | Peter Manhardt | Costume Designer, Designer | 1966 | 2 | |
| Martsch, Günter, Erich | Günter Erich Martsch | Actor | 1964 - 1966 | 2 | |
| Mihula, Richard | Richard Mihula | Adaptation, Director | 1965 | 2 | |
| Mayerová, Carmen | Carmen Mayerová | Actor | 1965 | 2 | |
| Meyers, Emerson | Emerson Meyers | Composer, Conductor | 1965 | 2 | |
| Murdock, Mike | Mike Murdock | Actor | 1965 | 2 | |
| Maramenos, Giorgos | Giorgos Maramenos | Actor | 1965 - 1979 | 2 | |
| Malik, Helmut | Helmut Malik | Actor | 1965 | 2 | |
| Müller, Klaus | Klaus Müller | Actor | 1965 | 2 | |
| Mitsakis, Vasilis | Vasilis Mitsakis | Actor | 1964 - 1965 | 2 | |
| Maitre, Martin, le | Martin le Maitre | Actor | 2015 - 2016 | 2 | |
| Minnaar, Dawid | Dawid Minnaar | Actor | 2015 - 2016 | 2 | |
| Möller, Dirk | Dirk Möller | Actor | 2002 | 2 | |
| Mills-Cockell, John | John Mills-Cockell | Composer, Sound Designer | 2002 | 2 | |
| Moore, Mark | Mark Moore | Actor | 2002 - 2013 | 2 | |
| Morishita, Takashi | Takashi Morishita | Actor | 2001 - 2002 | 2 | |
| Miketić, Miloš | Miloš Miketić | Actor | 2002 | 2 | |
| Milin, Srba | Srba Milin | Actor | 2002 | 2 | |
| Merker, Raimund | Raimund Merker | Actor | 1989 | 2 | |
| Meyerhoff, Joachim | Joachim Meyerhoff | Actor | 2002 - 2017 | 2 | |
| Moucka, Peter | Peter Moucka | Actor | 2002 - 2003 | 2 | |
| Manousopoulou, Katerina | Katerina Manousopoulou | Actor | 2002 | 2 | |
| Maerten, Hugo | Hugo Maerten | Actor | 2002 | 2 | |
| Moreau, Isabelle | Isabelle Moreau | Actor | 1997 | 2 | |
| Markovits, Bori | Bori Markovits | Actor | 2012 | 2 | |
| Murauer, Herbert | Herbert Murauer | Costume Designer, Designer | 2003 | 2 | |
| Murenc, Andrej | Andrej Murenc | Actor | 2003 - 2016 | 2 | |
| Mann, Sharon | Sharon Mann | Actor | 1989 | 2 | |
| May, Victoria | Victoria May | Dancer | 2001 | 2 | |
| Mapelli, Claudio | Claudio Mapelli | Sound Designer | 1989 | 2 | |
| Metzger, Heike | Heike Metzger | Actor | 1989 | 2 | |
| Mongelli, Giovanni | Giovanni Mongelli | Actor | 2003 - 2005 | 2 | |
| Milhaud , Darius | Darius Milhaud | Composer | 2003 - 2005 | 2 | |
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