| McIntosh, Duncan | Duncan McIntosh | Translator | 2011 | 2 | |
| Mockus, Anthony | Anthony Mockus | Actor | 1973 | 1 | |
| Mali, Derek | Derek Mali | Actor | 2001 | 1 | |
| McCluer, Carol | Carol McCluer | Actor | 2001 - 2009 | 2 | |
| Mack, William B. | William B. Mack | Actor | 1903 - 1907 | 8 | |
| Mittell, Karl | Karl Mittell | Actor | 1880 | 1 | |
| Mavrogeorgi, Georgia | Georgia Mavrogeorgi | Actor | 2010 | 1 | |
| Melato, Mariangela | Mariangela Melato | Actor | 2011 | 2 | |
| Moselli, Barbara | Barbara Moselli | Actor | 2011 | 1 | |
| Manon, Violeta | Violeta Manon | Actor | 1956 | 1 | |
| Mosetti, Maurizio | Maurizio Mosetti | Actor | 1990 | 1 | |
| Micheli, Stefania | Stefania Micheli | Actor | 1990 | 1 | |
| Menichelli, Patrizia | Patrizia Menichelli | Costume Designer | 1990 | 1 | |
| Maiello, Teth | Teth Maiello | Actor | 2005 - 2009 | 3 | |
| Monteiro, Bruno | Bruno Monteiro | Composer | 2009 | 1 | |
| Marsó, Silvia | Silvia Marsó | Actor | 2010 - 2011 | 40 | |
| Martínes, Pedro Miguel | Pedro Miguel Martínes | Actor | 2010 - 2011 | 40 | |
| May, Sylvia | Sylvia May | Actor | 1933 | 1 | |
| Magalhães, Mauro | Mauro Magalhães | Actor | 1945 | 1 | |
| Martinez, Derly | Derly Martinez | Lighting Designer, Sound Designer | 1945 | 2 | |
| Mitchell, Finn | Finn Mitchell | Actor | 2011 | 1 | |
| Marlow, Karla | Karla Marlow | Actor | 1917 | 1 | |
| Mork, Lutz | Lutz Mork | Actor | 1972 | 1 | |
| Müller, Rolf | Rolf Müller | Actor | 1918 - 1943 | 5 | |
| Mahmood, Barez Majeed | Barez Majeed Mahmood | Actor, Director | 2011 | 2 | |
| Main, Carolina | Carolina Main | Actor | 2010 - 2011 | 2 | |
| Miersch, Ronny | Ronny Miersch | Actor | 2010 | 1 | |
| Merlo, Silvia | Silvia Merlo | Designer | 2006 - 2019 | 7 | |
| Merritt, Michael | Michael Merritt | Designer | 1973 - 1991 | 2 | |
| Morigi, Alice Gealy | Alice Gealy Morigi | Costume Designer | 1973 | 1 | |
| Morales, Davinia | Davinia Morales | Actor | 2008 | 1 | |
| Monzó, Pilar | Pilar Monzó | Actor | 2008 | 1 | |
| McLaren, Robert | Robert McLaren | Director, Lighting Designer | 2006 - 2010 | 6 | |
| Mushayiwedu, Memory | Memory Mushayiwedu | Costume Designer | 2010 | 1 | |
| Manning, Dr. Philipp | Philipp Manning (Dr. Philipp Manning) | Actor, Director | 1898 - 1937 | 21 | |
| Müller I, - | - Müller I | Actor | 1908 | 1 | |
| Müller II, Fräul. | Fräul. Müller II | Actor | 1889 - 1908 | 4 | |
| Müller, Herbert | Herbert Müller | Actor | 1975 - 2011 | 9 | |
| Müller, Maximilian | Maximilian Müller | Composer | 2010 - 2011 | 8 | |
| Moen, Merete | Merete Moen | Actor | 1978 - 2010 | 15 | |
| Micheel, Gerd | Gerd Micheel | Actor | 1956 - 1958 | 2 | |
| Mellies, Wolfgang | Wolfgang Mellies | Actor | 1956 - 1958 | 2 | |
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