| Müller, Walter, | Walter Müller | Actor | 1925 - 1926 | 1 | |
| Müller, Werner | Werner Müller | Director | 2006 | 2 | |
| Müller, Wiebke | Wiebke Müller | Actor | 1995 | 3 | |
| Müller, Winfried, | Winfried Müller | Actor | 1947 | 1 | |
| Müller, Wolfgang | Wolfgang Müller | Actor | 1962 | 6 | |
| Müllerová, M. | M. Müllerová | Actor | 1955 | 1 | |
| Müllerová, Marie | Marie Müllerová | Actor | 1947 | 1 | |
| Mulligan, Kate A. | Kate A. Mulligan | Actor | 2006 - 2008 | 2 | 1 |
| Mullin, Bronwen | Bronwen Mullin | Composer | 2011 | 1 | |
| Mullinar, Millie | Millie Mullinar | Lighting Designer | 1996 | 1 | |
| Mullins , Lena | Lena Mullins | Actor | 1992 | 1 | |
| Mullins, Bartlett | Bartlett Mullins | Actor | 1962 | 1 | |
| Mullins, Carol | Carol Mullins | Lighting Designer | 1988 | 1 | |
| Mullins, Laurena | Laurena Mullins | Actor | 2000 | 2 | |
| Mullins, Melinda | Melinda Mullins | Actor | 1986 | 1 | |
| Müllner, Wolfgang | Wolfgang Müllner | Actor | 1988 | 5 | |
| Mullo, -, | - Mullo | Actor | 1919 | 1 | |
| Mullot, -, | - Mullot | Actor | 1912 - 1920 | 6 | |
| Mulloy, Kate | Kate Mulloy | Actor | 1979 | 1 | |
| Mulqueen, Rachel | Rachel Mulqueen | Actor | 2009 | 2 | |
| Mulraney, Adrian | Adrian Mulraney | Actor | 1991 | 1 | |
| Mulrennan, Paul | Paul Mulrennan | Actor | 1986 | 2 | |
| Mulrine, Stephen | Stephen Mulrine | Adaptation, Translator | 2002 - 2008 | 21 | |
| Mulroney, Elena | Elena Mulroney | Actor | 2000 | 1 | |
| Mulvad, Ninette | Ninette Mulvad | Dramaturg | 2018 | 39 | |
| Mulvany, Kate | Kate Mulvany | Actor | 2017 - 2018 | 2 | |
| Mulvenna, Declan | Declan Mulvenna | Actor | 1983 | 2 | |
| Mulvik, Nils, Golberg | Nils Golberg Mulvik | Actor | 2015 - 2020 | 54 | |
| Muła, Franciszek | Franciszek Muła | Actor | 1991 | 1 | |
| Mumba, Anita | Anita Mumba | Actor | 2006 | 1 | |
| Mumcu, Hüseyin | Hüseyin Mumcu (Huseyin Mumcu) | Costume Designer, Designer | 1965 - 2013 | 5 | |
| Mumdzhiev, K., | K. Mumdzhiev | Actor | 1922 | 1 | |
| Mumenthaler, Franz | Franz Mumenthaler | Actor | 2008 - 2009 | 2 | |
| Mumenthaler, Hans | Hans Mumenthaler | Actor | 1992 | 1 | |
| Mumenthaler, Heidi | Heidi Mumenthaler | Actor | 1989 | 3 | |
| Mumford, Peter | Peter Mumford | Designer, Lighting Designer | 1996 - 2016 | 18 | |
| Mumford, Philippa | Philippa Mumford | Costume Designer | 2011 | 50 | |
| Mumford, Stephanie, | Stephanie Mumford | Actor, Costume Designer | 2002 | 2 | |
| Mumm, Bob C. | Bob C. Mumm | Lighting Designer | 1988 | 1 | |
| Mumme, Friedel, | Friedel Mumme | Actor | 1938 | 2 | |
| Mummery, Terry | Terry Mummery | Lighting Designer | 1997 | 1 | |
| Munakata, Hariya | Hariya Munakata | Actor | 1991 | 1 | |
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