| Martinsons, Anatols | Anatols Martinsons | Actor | 1975 | 1 | |
| Mertinz, Johanna | Johanna Mertinz | Actor | 1975 | 1 | |
| Meyer, Donna | Donna Meyer | Costume Designer | 1975 | 1 | |
| Mauthe, Florian | Florian Mauthe | Actor | 1975 | 1 | |
| Mamont, Zbigniew | Zbigniew Mamont | Actor | 1975 | 1 | |
| Maślińska, Irena | Irena Maślińska | Actor | 1975 | 1 | |
| Mbuende, Willy | Willy Mbuende | Actor | 1975 | 1 | |
| McCallum, Nicholas | Nicholas McCallum | Actor | 1975 | 1 | |
| Meyer, Hans | Hans Meyer | Actor | 1975 | 1 | |
| Moran, Val | Val Moran | Costume Designer | 1975 | 1 | |
| Magee, Sean | Sean Magee | Sound Designer | 1975 | 1 | |
| Macpherson, John | John Macpherson | Actor | 1975 | 1 | |
| Marić, Veljko | Veljko Marić | Musical Director | 1975 | 1 | |
| Mesić, Cvijeta | Cvijeta Mesić | Actor | 1975 | 1 | |
| Morgan, Fidelis | Fidelis Morgan | Actor | 1975 | 1 | |
| Magnusson, Kerstin | Kerstin Magnusson | Actor | 1975 | 1 | |
| Montenegro, Manolita T. | Manolita T. Montenegro | Actor | 1975 | 1 | |
| Mauer, Lubo | Lubo Mauer | Producer, Translator | 1975 - 1976 | 4 | |
| Mikkelsen, Magnar | Magnar Mikkelsen | Adaptation | 1975 - 1976 | 9 | |
| Massara, Pino | Pino Massara | Composer | 1975 - 1976 | 3 | |
| Molron, France | France Molron | Actor | 1975 - 1977 | 10 | |
| Mestrez, Hubert | Hubert Mestrez | Actor | 1975 - 1977 | 10 | |
| Meacham, Michael | Michael Meacham | Director | 1975 - 1979 | 2 | |
| Marshall, Peggy | Peggy Marshall | Actor | 1975 - 1979 | 3 | |
| Müller, Hans-Reinhard | Hans-Reinhard Müller | Actor, Director | 1975 - 1979 | 3 | |
| Medbøe, Katja | Katja Medbøe | Actor | 1975 - 1980 | 6 | |
| Mägdefrau, Maria | Maria Mägdefrau | Actor | 1975 - 1981 | 2 | |
| Mikołajska, Halina | Halina Mikołajska | Actor | 1975 - 1981 | 2 | |
| Mackenzie, Michael | Michael Mackenzie | Actor | 1975 - 1981 | 2 | |
| Meek, Barbara | Barbara Meek | Actor | 1975 - 1983 | 5 | |
| Morger, Melchior | Melchior Morger | Actor | 1975 - 1983 | 9 | |
| Manzaneque, Manuel | Manuel Manzaneque | Director | 1975 - 1985 | 2 | |
| Mayen, Gerd | Gerd Mayen | Actor | 1975 - 1987 | 2 | |
| Mellies, Otto | Otto Mellies | Actor | 1975 - 1991 | 3 | |
| Matthias, Peter | Peter Matthias | Actor | 1975 - 1992 | 2 | |
| Michalski, Stanisław | Stanisław Michalski | Actor | 1975 - 1992 | 4 | |
| Mezzanotte, Luigi | Luigi Mezzanotte | Actor | 1975 - 1993 | 4 | |
| Meader, Derek | Derek Meader | Actor | 1975 - 1995 | 9 | |
| May, Eberhard | Eberhard May | Actor | 1975 - 1997 | 2 | |
| Mandel, Jane | Jane Mandel | Actor, Director | 1975 - 2004 | 2 | |
| Muhr, Michael | Michael Muhr | Adaptation, Translator | 1975 - 2009 | 7 | |
| Müller, Herbert | Herbert Müller | Actor | 1975 - 2011 | 9 | |
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