| Mullins, Melinda | Melinda Mullins | Actor | 1986 | 1 | |
| Müllner, Wolfgang | Wolfgang Müllner | Actor | 1988 | 5 | |
| Mullo, - | - Mullo | Actor | 1919 | 1 | |
| Mullor, Tut | Tut Mullor | Choreographer | 2024 | 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 | 1 |
| 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 - 2022 | 55 | |
| Muła, Franciszek | Franciszek Muła | Actor | 1991 | 1 | |
| Mumba, Anita | Anita Mumba | Actor | 2006 | 1 | |
| Mumcu, Hüseyin | Hüseyin Mumcu (Huseyin Mumcu) | Costume Designer, Designer | 1965 - 2012 | 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 | 1 |
| Mumford, Philippa | Philippa Mumford | Costume Designer | 2011 | 50 | |
| Mumford, Stephanie | Stephanie Mumford | Actor, Costume Designer | 2002 | 2 | 1 |
| Mumm, Bob C. | Bob C. Mumm | Lighting Designer | 1988 | 1 | |
| Mumme, Friedel | Friedel Mumme | Actor | 1938 - 1949 | 2 | |
| Mummery, Terry | Terry Mummery | Lighting Designer | 1997 | 1 | |
| Munakata, Hariya | Hariya Munakata | Actor | 1991 | 1 | |
| Munárriz, Jorge | Jorge Munárriz | Actor | 1987 | 1 | |
| Munby, Jonathan | Jonathan Munby | Director | 2018 | 2 | |
| Munch-Møller, Asger | Asger Munch-Møller | Actor, Translator | 1983 - 1990 | 3 | 1 |
| Munch, Edvard | Edvard Munch | Designer | 1906 - 1966 | 9 | 2 |
| Münch, Erich | Erich Münch | Actor | 2010 | 7 | |
| Münch, Josef | Josef Münch | Director | 1920 | 1 | |
| Munch, Karine | Karine Munch | Actor | 1995 - 1996 | 4 | |
| Münch, Leni | Leni Münch | Actor | 1945 | 1 | |
| Münch, Marion | Marion Münch | Costume Designer | 2003 - 2013 | 6 | |
| Munch, Marlene | Marlene Munch | Actor | 1993 | 1 | |
| Münch, Mr. | Mr. Münch | Actor | 1896 | 1 | |
| Münch, Richard | Richard Münch | Actor | 1937 - 1957 | 3 | 1 |
| Münch, Sibylle | Sibylle Münch | Actor | 1946 | 1 | |
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