| 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 | |
| Marino, Joseph | Joseph Marino | Actor | 1961 | 1 | |
| McQuade, John | John McQuade | Actor | 1961 | 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 | |
| Mphepo, Jasen | Jasen Mphepo | Actor | 2011 | 1 | |
| McElherron, Fergal | Fergal McElherron | Actor | 2011 | 1 | 2 |
| Minetti, Anne-Elise | Anne-Elise Minetti | Actor | 2012 | 1 | |
| McKendree, Rachel | Rachel McKendree | Actor | 2012 | 1 | 1 |
| Morton, Darrell | Darrell Morton | Actor | 1960 | 1 | |
| Mjøen, Fridtjof | Fridtjof Mjøen | Actor | 1945 - 1960 | 5 | |
| March, Lori | Lori March | Actor | 1960 | 1 | |
| Maeda, Chizuko | Chizuko Maeda | Actor | 1960 | 1 | |
| Moriya, Toshio | Toshio Moriya | Actor | 1960 | 1 | |
| Marshall, Jean | Jean Marshall | Actor | 1960 | 1 | |
| Meisner, Siegfried | Siegfried Meisner | Actor | 1960 - 1998 | 5 | |
| Moser, Hans, Heinz | Hans Heinz Moser | Actor | 1960 | 1 | |
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