| Mangiú, Giovanna | Giovanna Mangiú | Actor | 2019 | 1 | |
| Margowski, Andrzej | Andrzej Margowski | Designer, Director | 2019 | 2 | |
| Martino, Ariella | Ariella Martino | Actor | 2019 | 1 | |
| Moroni, Massimiliano | Massimiliano Moroni | Actor | 2019 | 1 | |
| Messina, Susanna | Susanna Messina | Designer | 2019 | 1 | |
| Marín, Laura | Laura Marín | Actor | 2019 - 2020 | 2 | |
| Morinaga, Yasuhiro | Yasuhiro Morinaga | Composer, Musician | 2019 - 2020 | 3 | |
| Micci, Pietro | Pietro Micci | Actor | 2019 - 2020 | 37 | |
| Moe, Håkon | Håkon Moe | Actor | 2019 - 2021 | 5 | |
| Martucci, Tiziana | Tiziana Martucci | Actor | 2019 - 2023 | 10 | |
| Mattei, Igor | Igor Mattei | Actor | 2020 | 2 | |
| Martin, Nick | Nick Martin | Actor | 2020 | 1 | |
| Marshall, Hailey | Hailey Marshall | Actor | 2020 | 1 | |
| McDowell, W. Stuart | W. Stuart McDowell | Director | 2020 | 1 | |
| Merlo, Joan | Joan Merlo | Actor | 2020 | 1 | |
| Macklin, Aziza | Aziza Macklin | Actor | 2020 | 1 | |
| Mueller, Will | Will Mueller | Actor | 2020 | 1 | |
| Magar, Taibi | Taibi Magar | Director | 2020 | 1 | |
| Mählby, Pelle | Pelle Mählby | Composer | 2020 | 1 | |
| Moe, Aslak | Aslak Moe | Dramaturg | 2020 | 5 | |
| Macnee, Colin | Colin Macnee | Actor, Adaptation, Director | 2020 | 3 | |
| McHale, Elizabeth | Elizabeth McHale | Actor | 2020 | 1 | |
| Manganari, Maria | Maria Manganari | Director | 2020 | 1 | |
| Moschos, Giannis | Giannis Moschos | Director | 2020 | 1 | |
| Michailidou, Ntina | Ntina Michailidou | Actor | 2020 | 1 | |
| Moradi Haghighi, Ahmad | Ahmad Moradi Haghighi | Actor | 2020 | 1 | |
| Momenabadi, Maryam | Maryam Momenabadi | Actor | 2020 | 1 | |
| Moafagh, Driush | Driush Moafagh | Actor | 2020 | 1 | |
| Mitchell, Leon | Leon Mitchell | Director | 2020 | 1 | |
| Molinari, Luca | Luca Molinari | Actor | 2020 | 1 | |
| Mittet, Veronica | Veronica Mittet | Actor | 2020 | 1 | |
| Mayer, David | David Mayer | Actor | 2020 | 1 | |
| Mikel, Syargei Leanidavich | Syargei Leanidavich Mikel (Сяргей Мікель) | Choreographer | 2020 | 1 | |
| Mill, Martin | Martin Mill | Actor | 2020 | 1 | |
| Mangina, Stephen | Stephen Mangina | Actor | 2020 | 2 | |
| Mangina, Marek | Marek Mangina | Actor | 2020 | 1 | |
| Moreira, Ana | Ana Moreira | Actor | 2020 | 2 | |
| Mathes, Weronika | Weronika Mathes | Stage Manager | 2020 | 2 | |
| Marø, Henriette | Henriette Marø | Actor | 2020 - 2024 | 3 | |
| Modrušan, Toni | Toni Modrušan | Lighting Designer | 2021 | 1 | |
| Mrkša, Karlo | Karlo Mrkša | Composer | 2021 | 1 | |
| Mrđen, Lovro | Lovro Mrđen | Video Designer | 2021 | 1 | |
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