| Machowski, Ignacy | Ignacy Machowski | Actor | 1977 | 1 | |
| Macht, Claudia | Claudia Macht | Actor | 2015 - 2019 | 3 | |
| Mächtlinger, Otto | Otto Mächtlinger | Actor | 1971 - 1973 | 6 | |
| MacHugh, Melanie | Melanie MacHugh | Actor | 2000 | 1 | |
| MacHugh, Tina | Tina MacHugh | Lighting Designer | 1990 - 2000 | 13 | |
| Machunze, Rose | Rose Machunze | Actor | 1947 | 1 | |
| Maciá, Carlos | Carlos Maciá | Actor | 2006 - 2007 | 6 | |
| Maciá, Ximo | Ximo Maciá | Lighting Designer | 2006 - 2007 | 6 | |
| Maciejewska, Magdalena | Magdalena Maciejewska | Actor, Designer | 1991 - 1999 | 2 | |
| Maciejewski, Sławomir | Sławomir Maciejewski | Actor | 2009 - 2012 | 4 | |
| Maciejewski, Zygmunt | Zygmunt Maciejewski | Actor | 1963 - 1969 | 3 | |
| Maciejowski, Jan | Jan Maciejowski | Director | 1994 | 1 | |
| Maciel, Carla | Carla Maciel | Actor, Costume Designer | 2011 | 2 | |
| MacIntosh, Joan | Joan MacIntosh | Actor | 1984 | 1 | |
| MacIntyre, Carter | Carter MacIntyre | Actor | 1999 | 1 | |
| Macintyre, Marguerite | Marguerite Macintyre | Dancer | 1984 | 1 | |
| MacIntyre, Stuart | Stuart MacIntyre | Actor | 2001 | 5 | |
| MacIsaac, Martha | Martha MacIsaac | Actor | 2005 | 1 | 1 |
| Maciuchová, Hana | Hana Maciuchová | Actor | 1988 - 2012 | 2 | |
| Mack-Shafer, Irene | Irene Mack-Shafer | Costume Designer | 2022 | 1 | |
| Mack, Billy | Billy Mack | Actor | 2009 - 2021 | 6 | |
| Mack, Duncan | Duncan Mack | Director | 2002 | 1 | |
| Mack, Joe | Joe Mack | Actor | 2004 | 1 | |
| Mack, Kathleen | Kathleen Mack | Actor | 1949 | 1 | |
| Mack, Muriel | Muriel Mack | Actor | 1911 | 1 | |
| Mack, Scarlett | Scarlett Mack | Actor | 2015 | 1 | |
| Mack, Tiffany | Tiffany Mack | Actor | 2014 | 1 | |
| Mack, Tove | Tove Mack | Choreographer | 2009 | 1 | |
| Mack, William B. | William B. Mack | Actor | 1903 - 1907 | 8 | 1 |
| Mackay-Smith, Gillian | Gillian Mackay-Smith | Actor | 2001 | 1 | |
| Mackay, Edward | Edward Mackay | Actor | 1910 | 3 | 1 |
| MacKay, Fulton | Fulton MacKay | Actor | 1959 - 1968 | 6 | |
| Mackay, Gerry | Gerry Mackay | Actor | 2015 | 1 | |
| Mackay, Helen | Helen Mackay | Actor | 2007 - 2009 | 8 | |
| MacKay, Kim | Kim MacKay | Actor | 2007 | 1 | |
| Mackay, Weyman | Weyman Mackay | Actor | 1944 | 2 | |
| Macke, Hans | Hans Macke | Choreographer | 1938 | 1 | |
| Mackenbrock, Tim | Tim Mackenbrock | Actor | 2016 | 3 | |
| Mackenzie, A., M.S. | A. M.S. Mackenzie | Actor | 1931 | 1 | |
| Mackenzie, Ian | Ian Mackenzie | Actor | 2006 | 1 | |
| Mackenzie, Julia | Julia Mackenzie | Actor | 1979 | 1 | |
| Mackenzie, Michael | Michael Mackenzie | Actor | 1975 - 1981 | 2 | |
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