| Moore, Tallis | Tallis Moore | Actor | 2005 | 1 | 1 |
| Maffitt, Clark | Clark Maffitt | Actor | 2005 | 1 | 1 |
| Mareš, Václav | Václav Mareš | Actor | 1999 | 1 | 1 |
| Montgomery, Eleanor | Eleanor Montgomery | Actor | 2001 | 2 | 1 |
| Mostberg, Joakim | Joakim Mostberg | Actor | 1989 | 48 | 1 |
| Matĕjovský, Jan | Jan Matĕjovský | Director | 1955 - 1958 | 2 | 1 |
| Mayr, Christel | Christel Mayr | Actor | 2005 - 2015 | 5 | 1 |
| Moltzen, Peter | Peter Moltzen | Actor | 2005 - 2007 | 6 | 1 |
| Meyer, Bettina | Bettina Meyer | Costume Designer, Designer | 2005 - 2012 | 3 | 1 |
| Marston, Cathy | Cathy Marston | Adaptation, Choreographer | 2005 - 2008 | 6 | 1 |
| McNall, Sean | Sean McNall | Actor | 2005 | 1 | 1 |
| Müller-Kuhl, Manfred | Manfred Müller-Kuhl | Actor | 2001 | 5 | 1 |
| Málek, Prokop | Prokop Málek | Musician | 1940 | 1 | 1 |
| Mercier, Jules | Jules Mercier | Actor | 2005 | 1 | 1 |
| Merriam, Brendan | Brendan Merriam | Actor | 2005 | 1 | 1 |
| Millson, Joseph | Joseph Millson | Actor | 2005 | 1 | 1 |
| Masuch, Sarah | Sarah Masuch | Actor | 2001 - 2004 | 4 | 1 |
| Millerová, Petra | Petra Millerová | Actor | 1999 | 1 | 1 |
| McAndrew, Kelly | Kelly McAndrew | Actor | 2001 | 2 | 1 |
| McCracken, Dave | Dave McCracken | Adaptation | 2005 | 1 | 1 |
| Mullen, Christopher | Christopher Mullen | Actor | 2001 | 1 | 1 |
| Müller, Mike | Mike Müller | Actor | 2005 | 2 | 1 |
| Maertens, Miriam | Miriam Maertens | Actor | 2005 | 3 | 1 |
| Metten, Marcel | Marcel Metten | Actor | 2005 - 2009 | 4 | 1 |
| Mulligan, Kate A. | Kate A. Mulligan | Actor | 2006 - 2008 | 2 | 1 |
| Maybank, Preston | Preston Maybank | Actor | 2006 | 1 | 1 |
| Mullen, Conor | Conor Mullen | Actor | 1989 - 1990 | 2 | 1 |
| Mackmin, Anna | Anna Mackmin | Director | 2007 - 2012 | 3 | 1 |
| Moss, Arthur | Arthur Moss | Actor | 2007 - 2011 | 13 | 1 |
| McCartan, Simon | Simon McCartan | Actor | 2006 | 1 | 1 |
| Martin, Sabine | Sabine Martin | Actor | 2006 - 2011 | 3 | 1 |
| Métraux, Bernard | Bernard Métraux | Actor | 2007 | 1 | 1 |
| Mellein, David | David Mellein | Actor | 2007 | 1 | 1 |
| May, Gergana | Gergana May | Translator | 2006 - 2016 | 2 | 1 |
| Maxwell, James | James Maxwell | Actor | 1959 - 1963 | 7 | 1 |
| Molin, Emma | Emma Molin | Actor | 2007 | 1 | 1 |
| Mulgrew, Gerry | Gerry Mulgrew | Actor | 2007 - 2009 | 8 | 1 |
| Maronde, Julia | Julia Maronde | Actor | 2007 | 2 | 1 |
| Marlow, Billy | Billy Marlow | Actor | 2015 - 2016 | 2 | 1 |
| Macras, Constanza | Constanza Macras | Choreographer, Director | 2006 | 2 | 1 |
| Marton, David | David Marton | Choreographer, Director | 2006 | 2 | 1 |
| Munro, Neil | Neil Munro | Actor, Adaptation, Director | 1981 - 2006 | 3 | 1 |
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