| Macedonio, Francesco | Francesco Macedonio | Director | 1974 | 2 | |
| Mintzer, William | William Mintzer | Lighting Designer | 1971 | 1 | |
| McEntee, Frank | Frank McEntee | Actor, Director | 1921 | 2 | |
| Merrill, William Way | William Way Merrill | Actor | 1929 | 1 | |
| Mortensen, Mari T. | Mari T. Mortensen | Actor | 1995 | 1 | |
| Montagnoli, Raffaele | Raffaele Montagnoli | Actor | 1996 | 2 | |
| Marino, Gian Paolo | Gian Paolo Marino | Actor | 1996 | 2 | |
| Meyers, Larry John | Larry John Meyers | Actor | 1984 | 1 | |
| Maurno, Dann Anthony | Dann Anthony Maurno | Actor | 2005 | 1 | |
| Maggs, Jr, Timothy J. | Timothy J. Maggs, Jr | Actor | 2006 | 1 | |
| Marrer, Meghan | Meghan Marrer | Lighting Designer | 2006 | 1 | |
| Marengo, Bruno | Bruno Marengo | Actor | 1997 | 4 | |
| Marengo, Maria | Maria Marengo | Actor | 1997 | 4 | |
| Maslo, Arthur | Arthur Maslo | Actor | 1997 | 4 | |
| Moses, William | William Moses | Actor | 1968 | 1 | |
| Mugulia, Crystal Bleu | Crystal Bleu Mugulia | Actor | 1999 | 1 | |
| Magiera, Alexander | Alexander Magiera | Actor | 1997 | 1 | |
| Milster, Folkert | Folkert Milster | Actor | 2005 - 2006 | 3 | |
| Meller, Margit | Margit Meller | Actor | 1981 | 1 | |
| Miserius, - | - Miserius | Actor | 1896 | 1 | |
| McFarland, Fred | Fred McFarland | Actor | 1963 | 1 | |
| Morris, Bob | Bob Morris | Actor | 1966 | 1 | |
| McCaw, Robert | Robert McCaw | Lighting Designer | 1964 | 1 | |
| Montgomery, Marcia Abbe | Marcia Abbe Montgomery | Actor | 1926 | 1 | |
| Mallen, Tara | Tara Mallen | Actor | 1987 | 1 | |
| Mallon, Brian | Brian Mallon | Actor | 1989 | 1 | |
| Müller, Marg | Marg Müller | Actor | 1894 | 1 | |
| McMahon, James B. | James B. McMahon | Actor | 1956 | 1 | |
| Murzaeva, Irina | Irina Murzaeva (Ирина Мурзаева) | Actor | 1939 | 1 | |
| Müller, V. | V. Müller | Designer | 1939 | 1 | |
| Malović, Jovana | Jovana Malović | Actor | 2000 - 2001 | 3 | |
| Mussagy, Omar | Omar Mussagy | | | | |
| Madeja, Tadeusz | Tadeusz Madeja | Actor | 1989 | 1 | |
| Murzyńska-Głybin, Bogumiła | Bogumiła Murzyńska-Głybin | Actor | 1989 | 1 | |
| Mitka, Jan | Jan Mitka | Actor | 1978 | 1 | |
| Min, Zhang | Zhang Min | Director | 1935 | 2 | |
| Miller, Chanel | Chanel Miller | Actor | 2007 | 1 | |
| Moor, Louis B. J. | Louis B. J. Moor | Actor, Director | 1880 - 1891 | 4 | |
| McDonnell, P.J. | P. J. McDonnell (P.J. McDonnell) | Actor | 1923 | 2 | |
| Marr, Hans | Hans Marr | Actor, Director | 1904 - 1938 | 101 | |
| McNulty, Finnuala | Finnuala McNulty | Lighting Designer | 2001 - 2008 | 14 | |
| Mützel-Schumann, Reinhard | Reinhard Mützel-Schumann | Lighting Designer | 2001 | 1 | |
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