| Martin, Alexis | Alexis Martin | Actor | 1991 | 2 | |
| Montpetit, Pascale | Pascale Montpetit | Actor | 1991 | 2 | |
| Marchegiani, Fiorenza | Fiorenza Marchegiani | Actor | 1988 | 2 | |
| Manzon, Carla | Carla Manzon | Actor | 1988 | 2 | |
| Mücke, Hans Christoph | Hans Christoph Mücke | Actor | 1991 | 2 | |
| McInroy, Bruce | Bruce McInroy | Costume Designer | 1982 - 1990 | 2 | |
| Malajkat, Wojciech | Wojciech Malajkat | Actor | 1991 | 2 | |
| Malmborg, Lars af | Lars af Malmborg | Translator | 1990 | 2 | |
| Manske, Wilhelm | Wilhelm Manske | Actor | 1990 - 1991 | 2 | |
| Mertz, Tibor Mertz | Tibor Mertz | Actor | 1991 - 2001 | 2 | |
| McDade, Sandy | Sandy McDade | Actor | 1990 | 2 | |
| Matshikiza, John | John Matshikiza | Actor | 1990 | 2 | |
| Muynck, Viviane, de | Viviane de Muynck | Actor | 1988 - 1991 | 2 | |
| Mrázková, Vĕra | Vĕra Mrázková | Actor | 1969 - 1991 | 2 | |
| Matouš, Dušan | Dušan Matouš | Actor | 1991 | 2 | |
| Markus, Tom | Tom Markus | Director | 1981 - 1991 | 2 | |
| Magno, Rosa, Carlos | Rosa Carlos Magno | Costume Designer | 1952 - 1956 | 2 | |
| Major, Pamela | Pamela Major | Actor | 1992 - 2015 | 2 | |
| Marques, António | António Marques | Actor | 1992 - 2015 | 2 | |
| Mounsey, Gordon | Gordon Mounsey | Actor | 1992 - 1994 | 2 | |
| Murnin, Michael J. | Michael J. Murnin | Designer, Lighting Designer | 1992 | 2 | |
| Maksimović, Boris | Boris Maksimović | Designer | 1989 - 1991 | 2 | |
| Machalica, Piotr | Piotr Machalica | Actor | 1991 - 1997 | 2 | |
| Masson, John | John Masson | Director | 1992 | 2 | |
| Milldoff, Kenneth | Kenneth Milldoff | Actor | 1992 - 1994 | 2 | |
| Madder, Leo | Leo Madder | Actor | 1992 - 1998 | 2 | |
| Mizuhara, Hideko | Hideko Mizuhara | Actor | 1968 - 1991 | 2 | |
| Melikyan, Krikor | Krikor Melikyan | Actor | 1961 - 1992 | 2 | |
| Mead, Simon | Simon Mead | Actor | 1988 | 2 | |
| Mannion, Tom | Tom Mannion | Actor | 1988 | 2 | |
| Miller, Harry | Harry Miller | Actor | 1988 | 2 | |
| McElhatton, Michael | Michael McElhatton | Actor | 1988 | 2 | |
| Maciuchová, Hana | Hana Maciuchová | Actor | 1988 - 2012 | 2 | |
| Mahr, Bettina | Bettina Mahr | Actor | 1988 - 1997 | 2 | |
| Mey, Franz | Franz Mey | Actor | 1992 | 2 | |
| Miura, Kenji | Kenji Miura | Actor | 1992 - 1994 | 2 | |
| Mortimer, Vicki | Vicki Mortimer | Designer | 1992 - 1994 | 2 | |
| Moon, David | David Moon | Lighting Designer | 1992 - 2000 | 2 | |
| Montalbán, Juan Carlos | Juan Carlos Montalbán | Actor | 1982 | 2 | |
| Morales, José | José Morales | Actor | 1982 | 2 | |
| Moser, Daniela | Daniela Moser | Dancer | 1994 | 2 | |
| Marios, Konstantinos | Konstantinos Marios | Actor, Director | 1982 | 2 | |
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