| Morris, Anthea | Anthea Morris | Actor | 1961 | 2 | |
| Mothershed, Barbara | Barbara Mothershed | Actor | 1961 | 1 | |
| Manning, Gerald | Gerald Manning | Actor | 1961 | 1 | |
| Murray, William | William Murray | Actor | 1961 | 1 | |
| Munke, Chris | Chris Munke | Actor | 1961 | 1 | |
| McDonald, Durward | Durward McDonald | Actor | 1961 | 1 | |
| Mockert, Iride | Iride Mockert | Actor | 2011 | 1 | |
| McMahon, Brendan | Brendan McMahon | Actor | 2012 | 1 | |
| Marti, Nina | Nina Marti | Actor | 2012 | 1 | 1 |
| Mandracchia, Manuela | Manuela Mandracchia | Actor | 2012 - 2020 | 32 | 4 |
| Meyer, Hanna | Hanna Meyer | Actor | 1954 - 1961 | 2 | |
| McMahon, Nano | Nano McMahon | Actor | 1961 | 1 | |
| Minton, Robert | Robert Minton | Actor | 1961 | 1 | |
| Malinauskas, Mark | Mark Malinauskas | Actor | 1961 | 1 | |
| McGuire, Michael | Michael McGuire | Actor | 1961 - 1962 | 2 | |
| MacGrath, Leueen | Leueen MacGrath | Actor | 1961 | 1 | 1 |
| Marino, Joseph | Joseph Marino | Actor | 1961 | 1 | 1 |
| McQuade, John | John McQuade | Actor | 1961 | 1 | 1 |
| McBride, Betsy | Betsy McBride | Actor | 2012 | 2 | |
| Martínez, Guillermo | Guillermo Martínez | Actor | 1961 | 1 | |
| Mörtel, Gerhard | Gerhard Mörtel | Actor | 1961 | 1 | |
| Mann, Günther | Günther Mann | Actor | 1961 | 1 | |
| Myrat, Dimitris | Dimitris Myrat | Actor | 1939 - 1990 | 6 | |
| Mousouri, Rita | Rita Mousouri | Actor | 1961 - 1990 | 3 | |
| McCaughey, Barbara | Barbara McCaughey | Actor | 1961 | 1 | |
| McLarnon, Patrick | Patrick McLarnon | Actor | 1961 | 1 | |
| Mitchel, Charles | Charles Mitchel | Actor | 1947 - 1961 | 3 | |
| Melnikova, Darya | Darya Melnikova | Actor | 2012 | 1 | 1 |
| Mattsson, Ulla | Ulla Mattsson | Actor | 1961 | 1 | |
| Macdonald, Ross | Ross Macdonald | Actor | 2012 | 1 | |
| Moustakis, Periklis | Periklis Moustakis | Actor | 2016 | 1 | |
| Mālkalne, Mirdza | Mirdza Mālkalne | Actor | 1960 | 1 | |
| Mikkelsen, Thorleif | Thorleif Mikkelsen | Actor | 1960 | 1 | |
| Mihalick, Stephanie | Stephanie Mihalick | Actor | 2012 | 1 | |
| Mirth, Gregg | Gregg Mirth | Actor | 2012 | 1 | |
| Melki, Michel | Michel Melki | Actor | 2012 - 2013 | 13 | |
| Müller, Christian, Bojidar | Christian Bojidar Müller | Actor | 2016 | 1 | |
| Mamier, Natascha | Natascha Mamier | Actor | 2016 | 1 | |
| Madden, James | James Madden | Actor | 1960 | 1 | |
| Münchhoff, Richard | Richard Münchhoff | Actor | 2011 - 2012 | 4 | |
| Miller, Paul G. | Paul G. Miller | Actor | 2011 | 1 | |
| Mares, Víctor | Víctor Mares | Actor | 1960 | 1 | |
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