| Magrofuoco, Jacques | Jacques Magrofuoco | Sound Designer | 1986 | 2 | |
| Maguire, Eamon | Eamon Maguire | Actor | 1996 | 1 | |
| Mahler, Selma | Selma Mahler | Actor | 1924 | 1 | |
| Maier, Werner | Werner Maier | Sound Designer | 1974 - 1978 | 2 | |
| Maier-Gehring, Christoph | Christoph Maier-Gehring | Dramaturg | 2001 - 2003 | 2 | |
| Maier-Waelde, Ingeborg | Ingeborg Maier-Waelde | Composer | 1969 | 1 | |
| Majchrzycki, Henio | Henio Majchrzycki | Actor | 1905 - 1906 | 7 | |
| Majewsky, Stella | Stella Majewsky | Actor | 1995 | 2 | |
| Makai, Péter | Péter Makai | Director | 1961 | 1 | |
| Mäkinen, Heta | Heta Mäkinen | Actor | 2002 | 1 | |
| Mako, Herbert | Herbert Mako | Actor | 1987 | 1 | |
| Makwarth, Miskow | Miskow Makwarth | Actor, Director | 1941 - 1944 | 4 | |
| Malaka, Bernard | Bernard Malaka | Actor | 2003 | 2 | |
| Malan, Jacques | Jacques Malan | Actor, Choreographer | 1994 - 2003 | 5 | |
| Malcolm, Roy | Roy Malcolm | Actor | 1926 - 1930 | 3 | |
| Malherbe, Jan | Jan Malherbe | Actor | 1889 - 1894 | 4 | |
| Malinowska, Czesława | Czesława Malinowska | Actor | 1905 | 2 | |
| Mallems, Alex | Alex Mallems | Adaptation, Dramaturg, Producer | 1998 | 64 | |
| Mallett, Chris | Chris Mallett | Actor | 1984 | 1 | |
| Malmberg, Li | Li Malmberg | Actor | 1985 | 1 | |
| Malmström, Ulla | Ulla Malmström | Actor | 1956 | 1 | |
| Malone, Sylvia | Sylvia Malone | Actor | 2004 | 1 | |
| Maloy, Richard | Richard Maloy | Actor | 2002 | 1 | |
| Malsbender, Herbert | Herbert Malsbender | Actor | 1950 - 1963 | 2 | |
| Managuerra, Mercè | Mercè Managuerra | Actor | 1997 | 1 | |
| Manasiev, Plamen | Plamen Manasiev (Пламен Манасиев) | Actor | 2001 - 2023 | 3 | |
| Mandel, Ellen | Ellen Mandel | Composer | 1994 - 1997 | 2 | |
| Manegold, Barbara | Barbara Manegold | Choreographer | 2002 | 8 | |
| Mánik, László | László Mánik | Mask Maker | 1961 - 1969 | 2 | |
| Mann, Aaron | Aaron Mann | Actor | 2008 | 1 | |
| Mann, Jack | Jack Mann | Sound Designer | 1982 | 1 | |
| Mannheimer, Bodil | Bodil Mannheimer | Actor | 1968 | 2 | |
| Manoledakis, Ioanna | Ioanna Manoledakis | Costume Designer, Designer | 1988 - 2006 | 16 | |
| Manoukian, Alina | Alina Manoukian | Actor | 2004 | 1 | |
| Mansos, Holly | Holly Mansos | Costume Designer | 2000 | 1 | |
| Mansourian, Henrik | Henrik Mansourian | Lighting Designer | 2007 | 1 | |
| Mantius, Karlheinz | Karlheinz Mantius | Actor | 1964 - 1973 | 2 | |
| Maranzana, Mario | Mario Maranzana | Actor, Director | 1974 - 1998 | 8 | |
| Marcello-Chraszczewska, Helena | Helena Marcello-Chraszczewska | Actor | 1882 | 1 | |
| Marchant, Jules-Henri | Jules-Henri Marchant | Director | 2002 | 1 | |
| Marchant, Valérie | Valérie Marchant | Actor | 2002 | 1 | |
| Marchioni, Vinicio | Vinicio Marchioni | Actor | 2002 - 2005 | 16 | |
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