| Murawska, Maria | Maria Murawska | Actor | 1960 | 1 | |
| Mancewicz, Włodzimierz | Włodzimierz Mancewicz | Actor | 1960 | 1 | |
| Morstin, Ludwik, Hieronim | Ludwik Hieronim Morstin | Adaptation | 1964 | 1 | |
| Marten, Emma | Emma Marten | Actor | 1912 | 1 | |
| Müller-Doriat, Stefan | Stefan Müller-Doriat | Actor | 2014 | 1 | |
| Muscă, Ion | Ion Muscă | Actor | 1972 | 5 | |
| Mizu, Mime | Mime Mizu | Director | 1924 | 1 | |
| Mureşan, Lucia | Lucia Mureşan | Actor | 1957 - 1979 | 2 | |
| Mărculescu, Adela | Adela Mărculescu | Actor | 1957 | 1 | |
| Marosin, Mircea | Mircea Marosin | Costume Designer, Designer | 1963 | 2 | |
| Moisescu, Mihnea | Mihnea Moisescu | Actor | 1963 | 1 | |
| Marinescu, Iulian | Iulian Marinescu | Actor | 1963 | 1 | |
| Marian, Eugenia | Eugenia Marian | Actor | 1963 | 1 | |
| Moga, Dorin | Dorin Moga | Actor | 1963 | 1 | |
| McGuire, Pat | Pat McGuire | Actor | 2001 | 2 | |
| Monthie, Jessica | Jessica Monthie | Actor | 2001 | 6 | |
| Marioteanu, Brânduşa | Brânduşa Marioteanu | Actor | 1977 | 3 | |
| Metzenrath, Gheorghe | Gheorghe Metzenrath | Actor | 1977 | 5 | |
| Morgenstern, Maia | Maia Morgenstern | Actor | 1985 | 6 | |
| Mustaţă, Cătălina | Cătălina Mustaţă | Actor | 1994 | 1 | |
| Marneus, Shirley | Shirley Marneus | Director | 2001 | 1 | |
| Möller-Mudifaj, Roger | Roger Möller-Mudifaj | Actor, Designer | 2001 | 2 | |
| Mills, Lesley | Lesley Mills | Actor | 2001 | 1 | |
| Muller, Janice | Janice Muller | Actor | 2001 | 1 | |
| Márton, Erzsébet | Erzsébet Márton | Actor | 1972 | 1 | |
| Molnár, Gizella | Gizella Molnár | Actor | 1965 - 1972 | 2 | |
| Muscalu, Stelica | Stelica Muscalu | Composer, Musical Director | 2006 - 2009 | 2 | |
| Mureșan, Crina | Crina Mureșan | Actor | 2009 | 1 | |
| Marinescu, Mihai | Mihai Marinescu | Actor | 2009 | 3 | |
| Mateescu, Luiza | Luiza Mateescu | Actor, Director | 2004 - 2009 | 3 | |
| Metten, Marcel | Marcel Metten | Actor | 2005 - 2009 | 4 | |
| Musgrave, Lynn | Lynn Musgrave | Sound Designer | 2006 | 1 | |
| Melli, Fulvio | Fulvio Melli | Lighting Designer | 2006 | 1 | |
| Manke, Art | Art Manke | Choreographer | 2006 - 2008 | 2 | |
| Monaghan, Megan | Megan Monaghan | Dramaturg | 2006 | 1 | |
| Menon-Johansson, Prav | Prav Menon-Johansson | Designer | 2006 | 1 | |
| Mengel, Jonathan | Jonathan Mengel | Actor | 2006 | 2 | |
| Mölder, Andreas | Andreas Mölder | Actor | 2006 | 2 | |
| Mangold, Philipp | Philipp Mangold | Adaptation, Director | 2006 | 4 | |
| Maurer, Stefanie | Stefanie Maurer | Actor | 1989 | 1 | |
| Morrell, Geoff | Geoff Morrell | Actor | 1989 | 1 | |
| Mullen, Conor | Conor Mullen | Actor | 1989 - 1990 | 2 | |
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