| Medlin, Charles | Charles Medlin | Actor | 1942 | 2 | |
| Morar, Vlad | Vlad Morar | Actor | 2016 | 2 | |
| Moya, Nathalie | Nathalie Moya | Actor | 1942 | 2 | |
| Martinelli, Anna | Anna Martinelli | Actor | 1903 - 1920 | 2 | |
| Mackay, Weyman | Weyman Mackay | Actor | 1944 | 2 | |
| Milling, Einar | Einar Milling | Actor | 1944 | 2 | |
| Marosszéki, Tamás | Tamás Marosszéki | Actor | 2014 | 2 | |
| Móréh, Zsolt | Zsolt Móréh | Lighting Designer | 2013 | 2 | |
| Moryciński, Hugon | Hugon Moryciński | Director | 1946 | 2 | |
| Morgan, Rosanne | Rosanne Morgan | Actor | 1946 | 2 | |
| Moore, Mary | Mary Moore | Actor | 1946 | 2 | |
| Martinez, Daniela | Daniela Martinez | Actor | 2017 | 2 | |
| Moore, Mary, Alice | Mary Alice Moore | Actor | 1946 | 2 | |
| Moore, Stanley | Stanley Moore | Costume Designer, Designer | 1947 | 2 | |
| Murphy, John | John Murphy | Actor | 1947 | 2 | |
| Mannering, Peter | Peter Mannering | Actor | 1947 | 2 | |
| March, Olave | Olave March | Actor, Director | 1947 | 2 | |
| MacMillan, Beryl | Beryl MacMillan | Actor | 1947 | 2 | |
| Mullins, Laurena | Laurena Mullins | Actor | 2000 | 2 | |
| Malenowska, Maria | Maria Malenowska | Actor | 1921 | 2 | |
| McNair, Emily | Emily McNair | Actor | 1948 | 2 | |
| Molska, Zofia | Zofia Molska | Actor | 1923 | 2 | |
| McCarthy, James | James McCarthy | Actor | 1948 | 2 | |
| Mathews, Gervaise | Gervaise Mathews | Actor | 1948 - 1949 | 2 | |
| Magalhães, Aloísio | Aloísio Magalhães | Costume Designer, Designer | 1949 | 2 | |
| Mulder, Steffen | Steffen Mulder | Actor, Dancer | 2017 - 2019 | 2 | |
| Mortensen, Linnea, Sunde | Linnea Sunde Mortensen | Actor, Dancer | 2017 - 2018 | 2 | |
| Murić, Momčilo | Momčilo Murić | Actor | 2000 | 2 | |
| Mladenović, Kokan | Kokan Mladenović | Adaptation, Director | 2000 | 2 | |
| Moskovljević, Miloš | Miloš Moskovljević | Translator | 2000 - 2013 | 2 | |
| Malochevskaja, Irina | Irina Malochevskaja | Dramaturg | 2014 - 2018 | 2 | |
| Merlo, Giuliano | Giuliano Merlo | Director | 1973 - 1974 | 2 | |
| Mariani, Guido | Guido Mariani | Lighting Designer | 1973 - 1974 | 2 | |
| Molnar, Teodor | Teodor Molnar | Sound Designer | 2013 - 2015 | 2 | |
| McQuade, Kris | Kris McQuade | Actor | 1971 | 2 | |
| Merkert, Angelika | Angelika Merkert | Actor | 1971 - 1977 | 2 | |
| Moruzan, Constantin | Constantin Moruzan | Adaptation, Director | 1956 | 2 | |
| Mihăilescu, Ion | Ion Mihăilescu | Director | 1956 - 1980 | 2 | |
| Munteanu, Cristian | Cristian Munteanu | Adaptation, Director | 1979 | 2 | |
| Mertens, Klaus | Klaus Mertens | Actor | 1973 | 2 | |
| Müller, K.- D. | K.- D. Müller | Actor | 1973 | 2 | |
| Morris, Christopher | Christopher Morris | Actor | 2016 | 2 | |
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