| Madolev, Todor | Todor Madolev | Actor | 1983 | 1 | |
| Markov, Mitko | Mitko Markov | Actor | 1983 | 1 | |
| McGill, Roger | Roger McGill | Director | 1983 | 1 | |
| Minifie, Paul | Paul Minifie | Actor | 1983 | 1 | |
| Molerov, Vladislav | Vladislav Molerov | Actor | 1983 | 1 | |
| Milanov, Dimitar | Dimitar Milanov | Actor | 1983 | 1 | |
| Michaïlidis, Giorgos | Giorgos Michaïlidis | Composer, Director | 1984 - 1985 | 4 | |
| Marra, Eirini | Eirini Marra | Adaptation | 1984 - 1985 | 2 | |
| Mitas, Grigoris | Grigoris Mitas | Actor | 1984 | 1 | |
| Medina, María, Luisa | María Luisa Medina | Actor | 1984 | 1 | |
| Magaña, Carlos | Carlos Magaña | Actor | 1984 | 1 | |
| Meléndez, Eligio | Eligio Meléndez | Actor | 1984 | 1 | |
| Meldrum, Rob | Rob Meldrum | Actor | 1984 | 1 | |
| McGregor, Robbie | Robbie McGregor | Actor | 1984 | 1 | |
| Mikoleit, Klaus | Klaus Mikoleit | Actor | 1984 | 2 | |
| Mesarić, Želimir | Želimir Mesarić | Director | 1984 - 1996 | 2 | |
| Ma, Wenliang | Wenliang Ma | Actor | 2017 | 3 | |
| Miao, Ge | Ge Miao | | | | |
| Mould, Chelsea Julia | Chelsea Julia Mould | Actor | 2016 | 1 | |
| Magherini, Riccardo | Riccardo Magherini | Actor | 1986 | 2 | |
| Manera, Dario | Dario Manera | Actor | 1986 - 1987 | 3 | |
| Marconi, Claudio | Claudio Marconi | Actor | 1986 | 2 | |
| Mendogni, Luca | Luca Mendogni | Actor | 1986 | 2 | |
| Mennella, Donatella | Donatella Mennella | Actor | 1986 | 2 | |
| Morandi, Silvana | Silvana Morandi | Actor | 1986 | 2 | |
| Machado, Stephanie | Stephanie Machado | Actor | 2017 | 1 | |
| Maroney, James, Jisoo | James Jisoo Maroney | Actor | 2017 | 1 | |
| Melchthal, Juliane | Juliane Melchthal | Actor | 1986 | 3 | |
| Mortensen, Jillaine | Jillaine Mortensen | Actor | 1986 | 1 | |
| Micheletti, Luca | Luca Micheletti | Actor, Director, Dramaturg | 2017 - 2019 | 19 | |
| Marchand, Miguel, Patron | Miguel Patron Marchand | Conductor | 1986 | 1 | |
| Muñóz, Claudio, E. | Claudio E. Muñóz | Dancer | 1986 | 1 | |
| Müller, Betty | Betty Müller | Actor | 1895 | 15 | |
| Motlagh, Nazanin, Taheri | Nazanin Taheri Motlagh | Actor | 2013 | 1 | |
| Maiwald, Julian | Julian Maiwald | Designer, Lighting Designer | 2013 - 2017 | 55 | |
| Metzger, Christopher | Christopher Metzger | Costume Designer | 2017 | 1 | |
| Mulford, George | George Mulford | Designer | 2017 | 1 | |
| Mangano, LeeAnne | LeeAnne Mangano | Actor | 2017 | 1 | |
| Mazur, Leah | Leah Mazur | Costume Designer | 2015 | 1 | |
| Mize, Lewis, D. | Lewis D. Mize | Actor | 2017 | 1 | |
| Mannette, Mark, T. | Mark T. Mannette | Actor | 2017 | 1 | |
| Moss, Marilyn | Marilyn Moss | Actor | 2017 | 1 | |
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