| Matioski, Gladyston, Roberto | Gladyston Roberto Matioski | Actor | 1966 | 1 | |
| Magno, Esmeralda | Esmeralda Magno | Actor | 1966 | 1 | |
| Menghini, Maria | Maria Menghini | Actor | 1966 | 1 | |
| Masset, Valerie | Valerie Masset | Actor | 1966 | 1 | |
| Majcenovic, Georg | Georg Majcenovic | Actor | 1966 | 1 | |
| Majewski, Hans-Martin | Hans-Martin Majewski | Composer | 1966 | 1 | |
| Maier, Gerd | Gerd Maier | Dancer | 1966 | 1 | |
| Matthes, Georg | Georg Matthes | Actor | 1966 | 1 | |
| Manhardt, Peter | Peter Manhardt | Costume Designer, Designer | 1966 | 2 | |
| Manning, Ferd | Ferd Manning | Lighting Designer | 1966 | 1 | |
| Măcelaru, Florin | Florin Măcelaru | Actor | 1966 | 1 | |
| Mărtoiu, Longin | Longin Mărtoiu | Actor | 1966 | 1 | |
| Minculescu, Cristina | Cristina Minculescu | Actor | 1966 | 1 | |
| Mirena, Ana | Ana Mirena | Actor | 1966 | 1 | |
| Meerskon, L. | L. Meerskon | Director | 1966 | 1 | |
| Massip, María | María Massip | Actor | 1966 | 1 | |
| Moreno, Mario | Mario Moreno | Actor | 1966 | 1 | |
| Monty, Ole | Ole Monty | Actor | 1966 | 1 | |
| Mellerup, Tage | Tage Mellerup | Designer | 1966 | 1 | |
| Mildner, Heinrich | Heinrich Mildner | Actor | 1966 - 1967 | 6 | |
| Morawetz, G. | Gustav Morawetz | Actor | 1966 - 1967 | 6 | |
| Mokka, Hans | Hans Mokka | Actor | 1966 - 1967 | 2 | |
| Murphy, Peter | Peter Murphy | Actor | 1966 - 1976 | 2 | |
| Massie, Paul | Paul Massie | Actor | 1966 - 1978 | 2 | |
| Mäkinen, Veikko | Veikko Mäkinen | Designer | 1966 - 1980 | 2 | |
| Murtinho, Kalma | Kalma Murtinho | Costume Designer | 1966 - 1983 | 9 | |
| Mialkovszky, Erzsébet | Erzsébet Mialkovszky | Costume Designer | 1966 - 1986 | 6 | |
| Meinecke, Otto Hans | Otto Hans Meinecke | Actor | 1966 - 1989 | 4 | |
| McRobbie, Peter | Peter McRobbie | Actor | 1966 - 1992 | 9 | 1 |
| Maertens, Peter | Peter Maertens | Actor, Director | 1966 - 1994 | 6 | |
| Murgescu, Florin | Florin Murgescu | Translator | 1966 - 2025 | 22 | |
| Möckel, Manfred | Manfred Möckel | Dramaturg | 1967 | 1 | |
| Maës, Tove | Tove Maës | Actor | 1967 | 1 | |
| McDonough, John | John McDonough | Actor | 1967 | 1 | |
| Mayberry, Tina | Tina Mayberry | Actor | 1967 | 1 | |
| Marques, Maria | Maria Marques | Actor | 1967 | 1 | |
| Marques, Argemiro | Argemiro Marques | Actor | 1967 | 1 | |
| MacDonald, Michael, Alan | Michael Alan MacDonald | Actor | 1967 | 1 | |
| Marwitz, Irene | Irene Marwitz | Actor | 1967 | 2 | |
| Miyao, Masumi | Masumi Miyao | Lighting Designer | 1967 | 1 | |
| Morisawa, Yasufumi | Yasufumi Morisawa | Actor | 1967 | 1 | |
| Mickley, Friedrich | Friedrich Mickley | Actor | 1967 | 1 | |
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