| McKenna, Sinéad | Sinéad McKenna | Lighting Designer | 2017 - 2023 | 2 | |
| Morocutti, Emmy | Emmy Morocutti | Actor | 1910 - 1913 | 2 | |
| Mo, Yan | Yan Mo | Actor | 2013 | 2 | |
| Martini, Sig.ra | Sig.ra Martini | Actor | 1940 | 2 | |
| Maltese, C. | C. Maltese | Actor | 1940 | 2 | |
| Moscardi, N. | N. Moscardi | Actor | 1940 | 2 | |
| MacMath, Danielle | Danielle MacMath | Actor | 2018 - 2023 | 2 | |
| Modzelewski, Krystian | Krystian Modzelewski | Actor | 2017 - 2021 | 2 | |
| Mureșan, Ioana-Andreea | Ioana-Andreea Mureșan | Translator | 2018 | 2 | |
| Márton, Erika | Erika Márton | Costume Designer | 2018 | 2 | |
| Mercury, Alexander | Alexander Mercury | Actor | 2018 | 2 | |
| Milham, Victoria | Victoria Milham | Actor | 2018 | 2 | |
| Moser, Gerhard | Gerhard Moser | Actor | 2018 | 2 | |
| Mallet, Odile | Odile Mallet | Actor, Director | 2018 | 2 | |
| Michel, Alain | Alain Michel | Actor, Director | 2018 | 2 | |
| Meisner, Frk. | Frk. Meisner | Actor | 1875 | 2 | |
| Malaktos, Panos | Panos Malaktos | Actor, Director | 2018 | 2 | |
| Mahon, Brennen | Brennen Mahon | Actor | 2018 | 2 | |
| Müller-Reitzner, Adolf | Adolf Müller-Reitzner | Actor | 1934 - 1935 | 2 | |
| Morris, Trevor | Trevor Morris | Actor | 1969 | 2 | |
| Mastin, Dawn | Dawn Mastin | Actor | 1969 | 2 | |
| Metcalfe, Carol | Carol Metcalfe | Costume Designer, Designer | 1972 | 2 | |
| Majewski, James | James Majewski | Actor | 2018 | 2 | |
| Murdoch, Rosalind | Rosalind Murdoch | Designer | 2015 - 2018 | 2 | |
| Michelsen, Morten | Morten Michelsen | Musician | 2017 - 2018 | 2 | |
| Mihăilescu-Brăila, D. | D. Mihăilescu-Brăila | Actor | 1924 | 2 | |
| Muscan, Liviu | Liviu Muscan | Actor | 1929 | 2 | |
| Murray, Erin | Erin Murray | Adaptation, Director | 2018 | 2 | |
| Munby, Jonathan | Jonathan Munby | Director | 2018 | 2 | |
| Motoori, Satoshi, Saikyo | Satoshi Saikyo Motoori | Actor | 2018 | 2 | |
| Metsugi, Rikki | Rikki Metsugi | Actor | 2018 | 2 | |
| Matujec, Vanja | Vanja Matujec | Actor | 2018 | 2 | |
| Moise, Denisse | Denisse Moise | Designer | 2018 | 2 | |
| McArton, Megan | Megan McArton | Actor, Director | 2019 | 2 | |
| McVicker, Chris | Chris McVicker | Designer, Lighting Designer | 2019 | 2 | |
| Musio, Paolo | Paolo Musio | Actor | 2019 | 2 | |
| Minati, Alessandro | Alessandro Minati | Actor | 2019 | 2 | |
| McMonagle, Graham | Graham McMonagle | Costume Designer, Designer | 2019 | 2 | |
| MacFadyen, Lorne | Lorne MacFadyen | Actor | 2019 | 2 | |
| McNamara, Adam | Adam McNamara | Actor | 2019 | 2 | |
| Marić, Milan | Milan Marić | Actor | 2015 | 2 | |
| Merritt, Emilio | Emilio Merritt | Actor, Director | 2019 | 2 | |
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