| Maloya, Chimwemwe | Chimwemwe Maloya (Chimwemwe Maloya) | Actor | 2006 | 4 | |
| Markström, Matilda | Matilda Markström (Matilda Markström) | Actor | 2007 | 1 | |
| Mitle, Max | Max Mitle (Max Mitle) | Lighting Designer | 2004 - 2013 | 3 | |
| Mikkola, Juhani | Juhani Mikkola (Juhani Mikkola) | Lighting Designer | 1981 - 1995 | 2 | |
| Manto, Erja | Erja Manto (Erja Manto) | Actor | 1992 - 1994 | 2 | |
| Minna, - | - Minna (- Minna) | Actor | 1881 | 1 | |
| Mundell, Jacob | Jacob Mundell (Jacob Mundell) | Actor | 2011 | 1 | |
| Mirowski, Malvina | Malvina Mirowski (Malvina Mirowski) | Actor | 2011 | 1 | |
| Margot, Hedwig | Hedwig Margot (Hedwig Margot) | Actor | 1896 - 1908 | 26 | |
| Makar, Valentin | Valentin Makar (Valentin Makar) | Actor | 2004 | 1 | |
| Myren, Eivind | Eivind Myren (Eivind Myren) | Lighting Designer | 2010 - 2020 | 60 | |
| Matthíasson, Ari | Ari Matthíasson (Ari Matthíasson) | Actor | 1993 | 2 | |
| Müller, Eva Verena | Eva Verena Müller (Eva Verena Müller) | Actor | 2011 - 2012 | 2 | |
| Mackert, Pia Maria | Pia Maria Mackert (Pia Maria Mackert) | Costume Designer, Designer | 2011 - 2022 | 11 | |
| Morris, Bea | Bea Morris (Bea Morris) | Actor | 1972 | 1 | |
| Mooney, Kristin | Kristin Mooney (Kristin Mooney) | Actor | 1972 | 1 | |
| Modereger, Jeff | Jeff Modereger (Jeff Modereger) | Designer | 2010 | 1 | |
| Mylonas, Niki | Niki Mylonas (Niki Mylonas) | Actor | 2011 | 1 | |
| Marshall, Caleb | Caleb Marshall (Caleb Marshall) | Actor, Director | 2011 | 4 | |
| Miller, Gordon | Gordon Miller (Gordon Miller) | Actor | 2011 | 2 | |
| McIntosh, Duncan | Duncan McIntosh (Duncan McIntosh) | Translator | 2011 | 2 | |
| Mockus, Anthony | Anthony Mockus (Anthony Mockus) | Actor | 1973 | 1 | |
| Mali, Derek | Derek Mali (Derek Mali) | Actor | 2001 | 1 | |
| McCluer, Carol | Carol McCluer (Carol McCluer) | Actor | 2001 - 2009 | 2 | |
| Mack, William B. | William B. Mack (William B. Mack) | Actor | 1903 - 1907 | 8 | |
| Mittell, Karl | Karl Mittell (Karl Mittell) | Actor | 1880 | 1 | |
| Mavrogeorgi, Georgia | Georgia Mavrogeorgi (Georgia Mavrogeorgi) | Actor | 2010 | 1 | |
| Melato, Mariangela | Mariangela Melato (Mariangela Melato) | Actor | 2011 | 2 | |
| Moselli, Barbara | Barbara Moselli (Barbara Moselli) | Actor | 2011 | 1 | |
| Manon, Violeta | Violeta Manon (Violeta Manon) | Actor | 1956 | 1 | |
| Mosetti, Maurizio | Maurizio Mosetti (Maurizio Mosetti) | Actor | 1990 | 1 | |
| Micheli, Stefania | Stefania Micheli (Stefania Micheli) | Actor | 1990 | 1 | |
| Menichelli, Patrizia | Patrizia Menichelli (Patrizia Menichelli) | Costume Designer | 1990 | 1 | |
| Maiello, Teth | Teth Maiello (Teth Maiello) | Actor | 2005 - 2009 | 3 | |
| Monteiro, Bruno | Bruno Monteiro (Bruno Monteiro) | Composer | 2009 | 1 | |
| Marsó, Silvia | Silvia Marsó (Silvia Marsó) | Actor | 2010 - 2011 | 40 | |
| Martínes, Pedro Miguel | Pedro Miguel Martínes (Pedro Miguel Martínes) | Actor | 2010 - 2011 | 40 | |
| May, Sylvia | Sylvia May (Sylvia May) | Actor | 1933 | 1 | |
| Magalhães, Mauro | Mauro Magalhães (Mauro Magalhães) | Actor | 1945 | 1 | |
| Martinez, Derly | Derly Martinez (Derly Martinez) | Lighting Designer, Sound Designer | 1945 | 2 | |
| Mitchell, Finn | Finn Mitchell (Finn Mitchell) | Actor | 2011 | 1 | |
| Marlow, Karla | Karla Marlow (Karla Marlow) | Actor | 1917 | 1 | |
|
|
