| Magnusson, Douglas | Douglas Magnusson | Actor | 2003 | 4 | |
| Magnusson, Erika | Erika Magnusson | Costume Designer | 2007 | 1 | |
| Magnusson, Georg | Georg Magnusson | Designer | 1955 - 1958 | 2 | |
| Magnússon, Guðmundur | Guðmundur Magnússon | Actor | 1975 | 1 | |
| Magnússon, Gunnar | Gunnar Magnússon | Actor | 1975 | 1 | |
| Magnusson, Håkan | Håkan Magnusson | Costume Designer | 1997 | 1 | |
| Magnusson, Julia | Julia Magnusson | Actor | 1892 - 1898 | 6 | |
| Magnusson, Karl | Karl Magnusson | Mask Maker | 1957 | 1 | |
| Magnusson, Kerstin | Kerstin Magnusson | Actor | 1975 | 1 | |
| Magnusson, Kim | Kim Magnusson | Producer | 2004 | 1 | |
| Magnusson, Kim | Kim Magnusson | | | | |
| Magnusson, Leif | Leif Magnusson | Actor | 1997 | 1 | |
| Magnússon, Sigurður | Sigurður Magnússon | Actor | 1943 | 1 | |
| Magnusson, Sven | Sven Magnusson | Actor | 1943 | 6 | |
| Magnussøn, Abigael Heber | Abigael Heber Magnussøn | Actor | 1916 - 1924 | 2 | |
| Magnussøn, Sigurd | Sigurd Magnussøn | Actor | 1902 - 2006 | 23 | |
| Mago, - | - Mago (Max Goldstein) | Costume Designer, Designer | 1964 - 1979 | 9 | |
| Magofuku, Takehisa | Takehisa Magofuku | Designer | 1960 | 1 | |
| Magone, Mary | Mary Magone | Actor | 1966 | 1 | |
| Mágori, Dóra | Dóra Mágori | Actor | 1927 - 1935 | 38 | |
| Mágori, Mária | Mária Mágori | Actor | 1924 - 1943 | 53 | |
| Magregor, Norval | Norval Magregor | Actor | 1904 | 2 | |
| Magris, Claudio | Claudio Magris | Translator | 1974 - 2020 | 16 | |
| Magrofuoco, Jacques | Jacques Magrofuoco | Sound Designer | 1986 | 2 | |
| Magruder, James | James Magruder | Dramaturg | 1994 | 1 | |
| Magry, Fabien | Fabien Magry | Actor | 2016 - 2023 | 4 | |
| Maguire, Eamon | Eamon Maguire | Actor | 1996 | 1 | |
| Maguire, Georgia | Georgia Maguire | Actor | 2009 | 1 | |
| Maguire, Geraldine | Geraldine Maguire | Actor | 1991 | 1 | |
| Maguire, Jim | Jim Maguire | Actor | 1960 | 2 | |
| Maguire, Leo | Leo Maguire | Actor | 1963 | 1 | |
| Magyar, Attila | Attila Magyar | Actor | 2013 | 1 | |
| Magyar, Éva | Éva Magyar | Actor | 2016 - 2018 | 27 | |
| Magyar, Fruzsina | Fruzsina Magyar | Dramaturg | 1991 - 2006 | 3 | |
| Magyari, - | - Magyari | Actor | 1909 | 1 | |
| Magyari, Etelka | Etelka Magyari | Actor | 2012 - 2013 | 5 | |
| Mahadeva | - Mahadeva | Actor | 1995 | 4 | |
| Mahaffey, Valerie | Valerie Mahaffey | Actor | 1990 | 1 | |
| Mahaffy, Jr., Robert, E. | Robert E. Mahaffy, Jr. | Designer | 1931 - 1936 | 2 | |
| Mahajan, Kartik | Kartik Mahajan | Actor | 2005 - 2006 | 2 | |
| Mahajan, Prajyot | Prajyot Mahajan | Musical Director | 2014 | 1 | |
| Mahalup, Ms | Ms Mahalup | Actor | 1891 | 1 | |
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