| Mellies, Otto | Otto Mellies | Actor | 1975 - 1991 | 3 | |
| Müller, Herma | Herma Müller | Actor | 1896 | 1 | |
| Morgenstern, Charlotte | Charlotte Morgenstern | Actor | 1975 | 1 | |
| Müller, Hans-Rainer | Hans-Rainer Müller | Actor | 1975 | 1 | |
| Münch, Mr. | Mr. Münch | Actor | 1896 | 1 | |
| Meister, Fritz | Fritz Meister | Actor | 1895 | 1 | |
| Meyer, Georg | Georg Meyer | Actor | 1895 | 1 | |
| Morger, Melchior | Melchior Morger | Actor | 1975 - 1983 | 9 | |
| McCann, Chris | Chris McCann | Actor | 1975 | 1 | |
| Mayer, Jerry | Jerry Mayer | Actor | 1975 | 1 | |
| Mitropoulo, Kaiti | Kaiti Mitropoulo | Actor | 1975 | 4 | |
| Markolias, Giorgos | Giorgos Markolias | Actor | 1975 | 4 | |
| Mantzari, Morfoula | Morfoula Mantzari | Actor | 1975 | 4 | |
| Murray, Eden | Eden Murray | Actor | 1975 | 1 | |
| Meaubert, Henriette | Henriette Meaubert | Actor | 1878 | 1 | |
| McCalman, Macon | Macon McCalman | Actor | 1971 - 1973 | 5 | |
| Mainer, David | David Mainer | Actor | 1979 | 1 | |
| Mondanaro, Julie | Julie Mondanaro | Actor | 1979 | 1 | |
| McWeeny, Jim | Jim McWeeny | Actor | 1979 | 1 | |
| Marshall, Gregory | Gregory Marshall | Actor | 1979 | 1 | |
| MacQueen, Brian | Brian MacQueen | Actor | 1979 | 1 | |
| Murphy, Susan | Susan Murphy | Actor | 1979 | 1 | |
| Meyer, - | - Meyer | Actor | 1878 | 1 | |
| Meulman, Bea | Bea Meulman | Actor | 1976 - 1979 | 2 | |
| Manolidou, Vaso | Vaso Manolidou | Actor | 1933 - 1979 | 11 | |
| Mattes, Eva | Eva Mattes | Actor | 1973 - 1975 | 3 | |
| Mortensen, Magnus, Young | Magnus Young Mortensen | Actor | 2014 - 2017 | 5 | |
| Magnússon, Guðmundur | Guðmundur Magnússon | Actor | 1975 | 1 | |
| Magnússon, Gunnar | Gunnar Magnússon | Actor | 1975 | 1 | |
| Magnusson, Ann-Christine | Ann-Christine Magnusson | Actor | 1979 | 1 | |
| McGee, Sian | Sian McGee | Actor | 1979 | 1 | |
| Meisel, Kurt | Kurt Meisel | Actor | 1979 - 1993 | 2 | |
| Mavromatis, Vasilis | Vasilis Mavromatis | Actor | 1972 | 1 | |
| Macdonald, Mickey | Mickey Macdonald | Actor | 1972 | 1 | |
| Martin, Reeve | Reeve Martin | Actor | 1972 | 1 | |
| Martin, Michael | Michael Martin | Actor | 1972 | 1 | |
| Mandel, Edgar | Edgar Mandel | Actor | 1967 - 1972 | 2 | |
| Meußling, Sabine | Sabine Meußling | Actor | 2013 - 2014 | 3 | |
| Mikołajska, Halina | Halina Mikołajska | Actor | 1975 - 1981 | 2 | |
| Mrozowska, Zofia | Zofia Mrozowska | Actor | 1975 | 1 | |
| Musiałek, Teresa | Teresa Musiałek (Teresa Musialek) | Actor | 1975 | 1 | |
| Michalewski, Romuald | Romuald Michalewski | Actor | 1975 | 1 | |
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