| Mann, Emily | Emily Mann | Actor, Director | 1979 - 1996 | 4 | 1 |
| Markkanen, Soili | Soili Markkanen | Actor | 1967 - 2012 | 4 | |
| Maruyama, Sadao | Sadao Maruyama | Actor, Director | 1925 - 1936 | 4 | |
| März, Daniela | Daniela März | Actor | 2001 - 2002 | 4 | |
| Marzi, Davide | Davide Marzi | Actor | 1999 - 2000 | 4 | |
| Matschuck, Rainer | Rainer Matschuck | Actor | 1973 - 2011 | 4 | 2 |
| Matsui, Suma | Suma Matsui | Actor | 1911 - 1912 | 4 | |
| Matzen, Volkert | Volkert Matzen | Actor | 1985 - 1997 | 4 | |
| Mauer, Lubo | Lubo Mauer | Producer, Translator | 1975 - 1976 | 4 | 1 |
| Mayer, Agda | Agda Mayer | Actor | 1878 - 1887 | 4 | |
| McClure, Keven | Keven McClure | Actor | 1944 - 1945 | 4 | |
| McKintosh, Peter | Peter McKintosh | Designer | 2003 - 2007 | 4 | 1 |
| Mehrjui, Dariush | Dariush Mehrjui | Director, Producer | 1993 - 2014 | 4 | 1 |
| Meixner, Karl | Karl Meixner | Actor | 1928 - 1975 | 4 | |
| Melbourne, Dale | Dale Melbourne | Actor | 1944 - 1945 | 4 | |
| Meraj, Salim | Salim Meraj | Actor | 2006 - 2012 | 4 | |
| Messana, Maurizio | Maurizio Messana | Adaptation, Director | 1996 | 4 | |
| Mete, Marco | Marco Mete | Actor | 1999 - 2000 | 4 | |
| Meyer, Hartmut | Hartmut Meyer | Designer | 1985 - 1994 | 4 | |
| Mezzanotte, Luigi | Luigi Mezzanotte | Actor | 1975 - 1993 | 4 | |
| Mihályfi, Károly | Károly Mihályfi | Actor | 1914 - 1927 | 4 | 1 |
| Miller, Manfred | Manfred Miller | Designer | 1947 - 1963 | 4 | |
| Milotová, Bárbora | Bárbora Milotová | Actor | 2004 - 2005 | 4 | 1 |
| Miura, Chieko | Chieko Miura | Actor | 1999 - 2002 | 4 | |
| Mladeck, Kyra | Kyra Mladeck | Actor | 1971 - 2003 | 4 | |
| Modugno, Lodovica | Lodovica Modugno | Actor | 1969 - 1974 | 4 | |
| Monaci, Aldo | Aldo Monaci | Actor | 1955 - 1956 | 4 | |
| Monaci, Berto | Berto Monaci | Actor | 1955 - 1956 | 4 | |
| Mori, Eijiro | Eijiro Mori | Actor | 1911 - 1912 | 4 | |
| Moszkowicz, Imo | Imo Moszkowicz | Director | 1964 - 1965 | 4 | |
| Mufti, Uns | Uns Mufti | Composer | 2006 - 2012 | 4 | |
| Muller, Myriam | Myriam Muller | Actor | 2000 - 2020 | 4 | |
| Müller, Elisabeth | Elisabeth Müller | Actor | 1946 - 1975 | 4 | |
| Müller, Erna | Erna Müller | Actor | 1894 - 1904 | 4 | |
| Müller, Hilde | Hilde Müller | Actor | 1909 - 1927 | 4 | |
| Müller, Poul | Poul Müller | Actor | 1943 - 1974 | 4 | |
| Mundrawala, Asma | Asma Mundrawala | Actor | 2006 - 2012 | 4 | |
| Murakami, Satomi | Satomi Murakami | Actor | 2006 - 2008 | 4 | |
| Myles, Chris | Chris Myles | Actor | 2008 | 4 | |
| McDonald, Frank | Frank McDonald | Actor | 1971 - 1985 | 4 | |
| Monaci, Maria Grazia | Maria Grazia Monaci | Actor | 1955 - 1956 | 4 | |
| Müller, - | - Müller | Actor | 1903 - 1918 | 4 | |
|
|
