| Modschiedler, Martin | Martin Modschiedler | Actor | 1982 | 1 | |
| Modschiedler, Matthias | Matthias Modschiedler | Actor | 1982 | 1 | |
| Michael, Dierk | Dierk Michael | Actor | 1982 | 1 | |
| Matos, Wilton | Wilton Matos | Actor | 1994 | 1 | |
| MacDonald, Mary | Mary MacDonald | Actor | 1994 | 1 | |
| Marchionne, Claire | Claire Marchionne | Actor | 1994 - 1995 | 4 | |
| McGillis, Kelly | Kelly McGillis | Actor | 1994 | 1 | |
| Moriconi, Valeria | Valeria Moriconi | Actor | 1980 - 2005 | 18 | |
| McGuire, Lloyd | Lloyd McGuire | Actor | 1980 | 1 | |
| McGuire, William, "Biff" | William "Biff" McGuire | Actor | 1980 | 1 | |
| Martikainen, Kauko | Kauko Martikainen | Actor | 1980 | 1 | |
| Mosiman, Marnie | Marnie Mosiman | Actor | 1980 | 1 | |
| Matsuno, Kennichi | Kennichi Matsuno | Actor | 1980 | 1 | |
| Michel, Ingulf | Ingulf Michel | Actor | 1980 - 2002 | 5 | |
| Miksch, Wolfgang | Wolfgang Miksch | Actor | 1980 | 1 | |
| Mielau, Doris | Doris Mielau | Actor | 1980 | 1 | |
| Melang, Dean | Dean Melang | Actor | 1980 | 1 | |
| Moraitis, Konstantinos | Konstantinos Moraitis | Actor | 2014 | 1 | |
| Murányi, Tünde | Tünde Murányi | Actor | 1994 | 1 | |
| Mahon, Niamh | Niamh Mahon | Actor | 1980 | 1 | |
| McCabe, Vincent | Vincent McCabe | Actor | 1980 - 2003 | 3 | |
| Moore, Richard | Richard Moore | Actor | 1980 | 1 | |
| Matull, Oskar | Oskar Matull | Actor | 1980 - 1997 | 2 | |
| Molloy, John | John Molloy | Actor | 1980 | 1 | |
| McKeown, Fintan | Fintan McKeown | Actor | 1980 - 2010 | 2 | |
| McKay, John | John McKay | Actor | 1980 | 1 | |
| Manville, Lesley | Lesley Manville | Actor | 2005 - 2015 | 5 | |
| McKenna, Charlene | Charlene McKenna | Actor | 2013 - 2015 | 4 | |
| Morick, Jeanine | Jeanine Morick | Actor | 1980 | 2 | |
| Maranto, Mark, Christopher | Mark Christopher Maranto | Actor | 1980 | 1 | |
| Marshall, William, Horace | William Horace Marshall | Actor | 1980 | 2 | |
| McGreevy, Barbara | Barbara McGreevy | Actor | 1980 | 1 | |
| Mink , David | David Mink | Actor | 1980 | 2 | |
| Moore, Andrew | Andrew Moore | Actor | 1980 | 2 | |
| Maude-Roxby, Roddy | Roddy Maude-Roxby | Actor | 2012 | 1 | |
| Mantle, Doreen | Doreen Mantle | Actor | 1975 - 2011 | 2 | |
| Minegishi, Ryoko | Ryoko Minegishi | Actor | 1994 | 1 | |
| Milner, Roger | Roger Milner | Actor | 1980 | 1 | |
| MacHugh, Melanie | Melanie MacHugh | Actor | 2000 | 1 | |
| Marcell, Joseph | Joseph Marcell | Actor | 2000 | 1 | |
| Marlowe, Christopher | Christopher Marlowe | Actor | 1980 | 1 | |
| McKenna, Kathy | Kathy McKenna | Actor | 1980 | 1 | |
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