| Marsh, James | James Marsh | Actor | 1966 | 1 | |
| Marsh, James | James Marsh | Actor, Dancer | 1966 | 2 | |
| McGilliard, George | George McGilliard | Dancer | 1966 | 1 | |
| Metcalf, Mark | Mark Metcalf | Dancer | 1966 | 1 | |
| Miaka, Stephen | Stephen Miaka | Musician | 1966 | 1 | |
| Michekoff, Matthew | Matthew Michekoff | Musician | 1966 | 1 | |
| Mehlkopf, Hermann | Hermann Mehlkopf | Costume Designer | 1966 | 1 | |
| Malewski, Ursula | Ursula Malewski | Actor | 1966 | 1 | |
| McAndrew, Pat | Pat McAndrew | Actor | 1966 | 1 | |
| Manhardt, Eva | Eva Manhardt | Actor | 1966 | 2 | |
| Miron, Dan | Dan Miron | Translator | 1966 | 1 | |
| Mor, Avraham | Avraham Mor | Actor | 1966 | 1 | |
| Martius, Brigitte | Brigitte Martius | Actor | 1966 | 1 | |
| Mergel, Heiner | Heiner Mergel | Actor | 1966 | 1 | |
| McGregor, Patricia | Patricia McGregor | Actor | 1966 | 1 | |
| Mendonça, J. Luiz | J. Luiz Mendonça | Actor | 1966 | 1 | |
| Morais, Irene | Irene Morais | Actor | 1966 | 1 | |
| 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 | |
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