| Marios, Konstantinos | Konstantinos Marios | Actor, Director | 1982 | 2 | |
| Mitchell, Katie | Katie Mitchell | Director | 1993 - 1994 | 3 | |
| Mortimer, Vicki | Vicki Mortimer | Designer | 1993 - 2010 | 6 | |
| Moen, Max | Max Moen | Actor | 1993 | 1 | |
| Matuszak, Brian | Brian Matuszak | Director | 1993 | 1 | |
| Mathias, Sean | Sean Mathias | Director | 1993 | 3 | |
| MacLiammoir, Nick | Nick MacLiammoir | Lighting Designer | 1993 | 3 | |
| Magnús, Kristján, Franklin | Kristján Franklin Magnús | Actor | 1993 | 1 | |
| Mezon, Jim | Jim Mezon | Actor | 1989 - 2012 | 3 | |
| Macdonald, Robert David | Robert David Macdonald | Translator | 1991 | 1 | |
| Marsden, Roy | Roy Marsden | Actor | 1991 | 1 | |
| Muła, Franciszek | Franciszek Muła | Actor | 1991 | 1 | |
| Mauss, Wiebke | Wiebke Mauss | Actor | 1993 - 1994 | 2 | |
| Mathea, Helga | Helga Mathea | Dramaturg | 1993 | 1 | |
| Martinus, Charlotta | Charlotta Martinus | Translator | 1991 | 1 | |
| MacNaughtan, Alan | Alan MacNaughtan | Actor | 1948 - 1991 | 5 | |
| Morawetz, Dorota | Dorota Morawetz | Costume Designer | 1993 | 1 | |
| Mafham, Dominic | Dominic Mafham | Actor | 1991 - 2014 | 2 | |
| Max, Edward | Edward Max | Actor | 1991 | 3 | |
| Marx, Doris | Doris Marx | Actor | 1977 - 1991 | 2 | |
| Myrow, Shira | Shira Myrow | Actor | 1993 | 2 | |
| Monahan, Kathy | Kathy Monahan | Actor | 1993 | 4 | |
| Matin, Franziska | Franziska Matin | Actor | 1991 | 1 | |
| McCann, Donal | Donal McCann | Actor | 1993 | 1 | |
| Mai, Wolfgang | Wolfgang Mai | Designer | 1993 | 1 | |
| Malinoff, Anastasia | Anastasia Malinoff | Actor | 1993 | 32 | |
| Morritt, Stewart | Stewart Morritt | Actor | 1993 | 32 | |
| McElhinney, Mandy | Mandy McElhinney | Actor | 1993 | 1 | |
| Mayer, Stefan | Stefan Mayer | Designer | 1993 | 1 | |
| Meyer, Harry | Harry Meyer | Sound Designer | 1993 | 1 | |
| Macklin, Kersti | Kersti Macklin | Musician | 1991 | 1 | |
| Manhillen, Stefanie | Stefanie Manhillen | Designer | 1993 | 1 | |
| Madár, Zoltán, K. | Zoltán K. Madár | Actor | 2014 | 1 | |
| Muck, Anna-Katharina | Anna-Katharina Muck | Actor | 1993 - 2004 | 3 | |
| Müller-Merten, Heike | Heike Müller-Merten | Dramaturg | 1993 - 2006 | 5 | |
| Monroe, Jarion | Jarion Monroe | Actor | 1993 | 1 | |
| Maradudin, Peter | Peter Maradudin | Lighting Designer | 1993 | 2 | |
| McGaha, John | John McGaha | Actor | 1993 | 1 | |
| Martelli, Tina | Tina Martelli | Actor | 1993 | 1 | |
| Moore, Sophie | Sophie Moore | Actor | 1991 - 1992 | 2 | |
| Morcsányi, Géza | Géza Morcsányi | Dramaturg | 1993 - 2013 | 4 | |
| Moutsopoulou, Lila | Lila Moutsopoulou | Actor | 1991 | 4 | |
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