| Muinzer, Louis | Louis Muinzer | Director, Translator | 1983 - 1990 | 6 | |
| Matthies, Eberhard | Eberhard Matthies | Costume Designer, Designer | 1974 - 2000 | 6 | |
| Maneva, Zvetana | Zvetana Maneva | Actor | 1974 | 6 | |
| Mancioppi, Alberto | Alberto Mancioppi | Actor | 1974 | 6 | |
| Müller, Wolfgang | Wolfgang Müller | Actor | 1962 | 6 | |
| McKellen, Ian | Ian McKellen | Actor | 1972 - 1998 | 6 | |
| Matesis, Pavlos | Pavlos Matesis | Translator | 1976 - 1989 | 6 | |
| McKee, Lorraine | Lorraine McKee | Costume Designer | 1972 | 6 | |
| Macready, Susan | Susan Macready | Actor | 1972 | 6 | |
| Minet, Karin | Karin Minet | Actor | 1981 | 6 | |
| Meyer-Fürst, Gustl | Gustl Meyer-Fürst | Actor | 1981 - 2008 | 6 | |
| Mikiver, Mikk | Mikk Mikiver | Actor, Director | 1962 - 2000 | 6 | |
| Moore, Douglas | Douglas Moore | Actor | 1981 - 1982 | 6 | |
| McCloskey, Steven | Steven McCloskey | Actor | 1983 | 6 | |
| Malý, L. | L. Malý | Actor | 1972 - 1994 | 6 | |
| Mousouris, Spyros | Spyros Mousouris | Actor | 1939 - 1990 | 6 | |
| Münzner, Melanie | Melanie Münzner | Actor | 1952 | 6 | |
| Moustaka, Athanasia | Athanasia Moustaka | Actor | 1935 - 1965 | 6 | |
| Manker, Paulus | Paulus Manker | Actor | 1983 - 2003 | 6 | |
| Muzaien, Ibrahim | Ibrahim Muzaien | Designer | 2008 | 6 | |
| Morkus, Rabeah | Rabeah Morkus | Choreographer | 2008 | 6 | |
| Massou, Khalid | Khalid Massou | Actor | 2008 | 6 | |
| Maxim, Cosmin | Cosmin Maxim | Actor | 2014 - 2017 | 6 | |
| Mercier, Annie | Annie Mercier | Actor | 2009 - 2010 | 6 | |
| Martinelli, Jean-Louis | Jean-Louis Martinelli | Director, Translator | 2010 - 2012 | 6 | |
| Meidal, Hannes | Hannes Meidal | Actor | 2012 - 2015 | 6 | 6 |
| MacNeil, Ian | Ian MacNeil | Designer | 1986 - 2016 | 6 | |
| Moretti, Tobias | Tobias Moretti | Actor | 1985 | 6 | |
| Maertens, Peter | Peter Maertens | Actor, Director | 1966 | 6 | |
| Monttola, Adriane | Adriane Monttola | Actor | 1987 | 6 | |
| Meredith, David, Lloyd | David Lloyd Meredith | Actor | 1991 | 6 | |
| Morgan, Matthew | Matthew Morgan | Actor | 1991 | 6 | |
| Möckel , Andreas | Andreas Möckel | Actor | 1990 - 2006 | 6 | |
| Manker, Katharina | Katharina Manker | Actor | 1988 | 6 | |
| Mejuto, Andrés | Andrés Mejuto | Actor | 1968 - 1982 | 6 | |
| Mortimer , Vicki | Vicki Mortimer | Designer | 1993 - 2011 | 6 | |
| Maalouf, Mireille | Mireille Maalouf | Actor | 2012 - 2014 | 6 | 6 |
| Monteiro, Roméo | Roméo Monteiro | Actor, Musician | 2012 - 2014 | 6 | |
| Majewski, Maria | Maria Majewski | Actor | 1977 | 6 | |
| Maglietta, Maria | Maria Maglietta | Actor, Costume Designer, Designer | 1994 - 1996 | 6 | |
| Mrkvička, Ladislav | Ladislav Mrkvička | Actor | 1994 - 2010 | 6 | |
| McPherson, Coco | Coco McPherson | Actor | 1989 - 1995 | 6 | |
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