| Margerum, Eric | Eric Margerum | Actor | 1978 | 1 | |
| Margetić, Vera | Vera Margetić | Actor | 1964 | 1 | |
| Margetts, Monty | Monty Margetts | Actor | 1931 - 1936 | 3 | |
| Marggraf, Erhard | Erhard Marggraf | Actor | 1991 - 2003 | 12 | |
| Margid, Elizabeth | Elizabeth Margid | Director | 1998 | 1 | 1 |
| Mărgineanu, Remus | Remus Mărgineanu | Actor | 1983 | 1 | |
| Margio, Ugo | Ugo Margio | Director | 1986 | 1 | |
| Margo, Erich | Erich Margo | Actor | 1962 | 1 | |
| Margolin Lawson, David | David Margolin Lawson | Sound Designer | 2006 | 1 | |
| Margolin, Stuart | Stuart Margolin | Actor | 1965 - 2018 | 3 | |
| Margolis, Gabriel | Gabriel Margolis | Musician | 2022 | 1 | |
| Margot | Margot - | Actor | 2013 - 2016 | 24 | |
| Margot, François | François Margot | Actor, Musician | 1996 - 1998 | 4 | |
| Margot, Hedwig | Hedwig Margot | Actor | 1896 - 1908 | 26 | 1 |
| Margowski, Andrzej | Andrzej Margowski | Designer, Director | 2019 | 2 | |
| Margreiter, Fr. | Fr. Margreiter | Actor | 1892 | 2 | |
| Margulies, Armand | Armand Margulies | Actor | 1964 - 1970 | 2 | |
| Margulies, Jonathan | Jonathan Margulies | Actor | 1978 | 1 | |
| Margulies, Pär | Pär Margulies | Actor | 1985 - 1990 | 3 | 1 |
| Marholia, Roman | Roman Marholia | Director, Dramaturg | | 2 | |
| Mari, Febo | Febo Mari | Actor, Director | 1919 | 2 | |
| Mari, Franco | Franco Mari | Actor | 1974 - 1975 | 6 | |
| Mari, Mr. | Mr. Mari | Actor | 1896 - 1898 | 6 | |
| Mari, Pasquale | Pasquale Mari | Lighting Designer | 1999 - 2021 | 14 | |
| Mari, Roberto | Roberto Mari | Actor | 1974 - 1975 | 6 | |
| Mari, Sergio | Sergio Mari | Actor | 1922 | 1 | |
| Maria, Guida | Guida Maria | Actor | 1972 | 1 | |
| Maria, Guzhova | Guzhova Maria | Actor | 2016 | 1 | |
| Maria, Karla | Karla Maria | Costume Designer | 2006 | 1 | |
| Maria, Lucia | Lucia Maria | Actor | 2007 - 2008 | 6 | 1 |
| Mariam, Helen T | Helen T Mariam | Director | 2023 | 1 | |
| Marian | Marian | Actor | 1895 | 1 | |
| Marian, B. | B. Marian | Translator | 1901 | 2 | 1 |
| Marian, Erin | Erin Marian | Actor | 2003 | 1 | |
| Marian, Eugenia | Eugenia Marian | Actor | 1963 | 1 | |
| Marian, Oana | Oana Marian | Designer | 2003 | 1 | |
| Mariana, Johanna | Johanna Mariana | Actor | 2017 | 1 | |
| Marianes, Eliana | Eliana Marianes | Actor | 2009 | 7 | |
| Mariani, Guido | Guido Mariani | Lighting Designer | 1973 - 1974 | 2 | |
| Mariani, Juliette | Juliette Mariani | Actor | 2002 | 1 | |
| Mariani, Lucia | Lucia Mariani | Costume Designer | 2016 - 2018 | 42 | |
| Mariani, Mario | Mario Mariani | Actor | 1954 - 1963 | 2 | |
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