| McLeod, Alison | Alison McLeod | Sound Designer | 2009 | 1 | |
| Makar, Tom | Tom Makar | Sound Designer | 2009 | 1 | |
| Moran, Buzz | Buzz Moran | Sound Designer | 2010 - 2011 | 2 | |
| Magkonis, Miltiadis | Miltiadis Magkonis | Sound Designer | 2010 | 1 | |
| Moore, Nick | Nick Moore | Sound Designer | 2010 | 1 | |
| Miller, Lewis | Lewis Miller | Sound Designer | 2010 | 1 | |
| Mehra, Karandeep | Karandeep Mehra | Sound Designer | 2010 | 1 | |
| Marcum, Eric | Eric Marcum | Sound Designer | 2009 | 1 | |
| Mossler, Sam | Sam Mossler | Sound Designer | 2010 | 1 | |
| Moslehi, Mehrdad | Mehrdad Moslehi | Sound Designer | 2009 - 2010 | 1 | |
| Mathur, Sidhant | Sidhant Mathur | Sound Designer | 2009 | 1 | |
| Macrinici, Alexandru | Alexandru Macrinici | Sound Designer | 2011 | 1 | |
| McErlaine, Sheila | Sheila McErlaine | Sound Designer | 1964 | 1 | |
| Malone, Rick | Rick Malone | Sound Designer | 2011 - 2017 | 2 | |
| Mathis, Marco | Marco Mathis | Sound Designer | 2011 | 1 | |
| McMasters, Ryan | Ryan McMasters | Sound Designer | 2013 | 1 | |
| Mardikes, Tom | Tom Mardikes | Sound Designer | 1999 | 1 | |
| Mordal, Eirik | Eirik Mordal | Sound Designer | 2017 | 1 | |
| Milburn, Rob | Rob Milburn | Sound Designer | 2017 | 1 | |
| Miles, Geoff | Geoff Miles | Sound Designer | 2017 | 17 | |
| Molnar , Teodor | Teodor Molnar | Sound Designer | 2013 | 2 | |
| Matei, Doina | Doina Matei | Sound Designer | 2005 | 1 | |
| Machado, Otávio | Otávio Machado | Sound Designer | 1990 | 1 | |
| Malcolm, Jess | Jess Malcolm | Sound Designer | 2013 | 1 | |
| Magee, Sean | Sean Magee | Sound Designer | 1975 | 1 | |
| McDonald, Brian | Brian McDonald | Sound Designer | 2018 | 1 | |
| Mauder, Björn | Björn Mauder | Sound Designer | 2018 | 1 | |
| Maxwell, Brooke | Brooke Maxwell | Sound Designer | 2019 | 1 | |
| Mohamad, Halmat | Halmat Mohamad | Sound Designer | 2013 - 2014 | 3 | |
| Mirni, Andrej | Andrej Mirni | Sound Designer | 2019 | 1 | |
| Magaljas, Vadim | Vadim Magaljas | Sound Designer | 2019 | 1 | |
| Morgenstern, Christian, | Christian Morgenstern | Translator | 1899 - 2014 | 381 | 381 |
| Maniu, Adrian | Adrian Maniu | Translator | 1959 - 1992 | 4 | |
| Marciniakówna, Anna | Anna Marciniakówna | Translator | 2006 - 2016 | 34 | |
| Marker, Lise-Lone, | Lise-Lone Marker | Translator | 1972 - 2018 | 15 | |
| Marx-Aveling, Eleanor, | Eleanor Marx-Aveling | Translator | 1891 - 2010 | 7 | |
| McCarthy, Sean | Sean McCarthy | Translator | 1982 | 1 | |
| McFarlane, James Walter, | James Walter McFarlane (James Walter McFarlane) | Translator | 1962 - 2012 | 17 | |
| Meshulach, Rivka, | Rivka Meshulach | Translator | 1999 | 2 | |
| Michalatou, Maeri | Maeri Michalatou | Translator | 2006 - 2007 | 5 | |
| Miyauchi, Mitsuya | Mitsuya Miyauchi | Translator | 1986 | 1 | |
| Moder, Janko | Janko Moder | Translator | 1970 - 2009 | 15 | |
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