| McSweeney, Kevin | Kevin McSweeney | Director | 2001 | 2 | |
| McWilliams, Jack | Jack McWilliams | Actor | 1928 | 2 | |
| Meader, Derek | Derek Meader | Actor | 1975 - 1995 | 9 | |
| Medalis, Joseph | Joseph Medalis | Actor | 1974 | 1 | |
| Medina, Estela | Estela Medina | Actor | 1954 - 1979 | 3 | |
| Medina, Kristopher | Kristopher Medina | Actor | 2003 - 2011 | 35 | |
| Meduna, Jaromír | Jaromír Meduna | Actor | 1999 | 1 | |
| Meeker, Dan | Dan Meeker | Designer, Lighting Designer | 2003 | 2 | |
| Mehring, Horst | Horst Mehring | Actor | 1971 - 1975 | 3 | |
| Mehrjui, Dariush | Dariush Mehrjui | Director, Producer | 1993 - 2014 | 3 | |
| Meinhold, Reinhard | Reinhard Meinhold | Costume Designer | 1972 | 1 | |
| Mei-sim, Chan | Chan Mei-sim | Choreographer | 2001 | 1 | |
| Meister, Karel | Karel Meister | Actor | 1961 - 1966 | 2 | |
| Meixner, Karl | Karl Meixner | Actor | 1928 - 1975 | 4 | |
| Mejlænder-Hellesen, Marie | Marie Mejlænder-Hellesen | Actor | 1891 - 1921 | 16 | |
| Melander, Björn | Björn Melander | Adaptation, Director | 1999 - 2008 | 6 | |
| Melbourne, Dale | Dale Melbourne | Actor | 1944 - 1945 | 4 | |
| Melchert, Arne | Arne Melchert | Actor | 1924 - 1944 | 2 | |
| Melichar, Rudolf | Rudolf Melichar | Actor | 1957 - 2010 | 6 | |
| Mell, Maria | Maria Mell | Actor | 1909 - 1952 | 13 | |
| Mellberg, Johanna | Johanna Mellberg | Actor | 1999 | 1 | |
| Mellberg, Rasmus | Rasmus Mellberg | Actor | 1980 | 1 | |
| Melldahl, Åsa | Åsa Melldahl | Director | 2000 - 2007 | 3 | |
| Mellor, Harold | Harold Mellor | Actor | 1963 - 1977 | 3 | |
| Melsing, Svend | Svend Melsing | Actor | 1907 - 1942 | 5 | |
| Meltke, Martin | Martin Meltke | Director | 1981 | 1 | |
| Mendes, Manuel | Manuel Mendes | Actor | 1993 - 2004 | 2 | |
| Menelaus, Jane | Jane Menelaus | Actor | 1989 | 1 | |
| Menger, Willy | Willy Menger | Actor | 1966 | 1 | |
| Mensching, Herbert | Herbert Mensching | Actor | 1969 | 1 | |
| Mentzel, Horst | Horst Mentzel | Director | 1975 | 1 | |
| Menzel, Heinz | Heinz Menzel | Actor | 1973 | 1 | |
| Menzies, Robert | Robert Menzies | Actor | 1988 - 2017 | 5 | |
| Meraj, Salim | Salim Meraj | Actor | 2006 - 2012 | 4 | |
| Mercure, Jean | Jean Mercure | Director | 1952 | 1 | |
| Meredith, Carol | Carol Meredith | Actor | 1974 | 1 | |
| Meredith, John | John Meredith | Actor | 1974 | 1 | |
| Meredith, Victor | Victor Meredith | Actor | 1968 | 1 | |
| Meriläinen, Marja | Marja Meriläinen | Producer | 2006 | 1 | |
| Merino, Juana | Juana Merino | Costume Designer | 1956 | 1 | |
| Merivale, Philip | Philip Merivale | Actor | 1944 | 1 | |
| Merk, Romano | Romano Merk | Actor | 1958 | 1 | |
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