| Mitarbeit, Kxnstlerische | Kxnstlerische Mitarbeit | | | | |
| Mitchell, Charlie | Charlie Mitchell | Actor | 2008 | 1 | |
| Mitchell, Chris | Chris Mitchell | Dramaturg | 2003 | 1 | |
| Mitchell, Maude | Maude Mitchell | Actor, Adaptation, Dramaturg | 2003 - 2011 | 102 | |
| Mitchell, Molly | Molly Mitchell | Actor | 1971 | 1 | |
| Mitchell, Robert | Robert Mitchell | Actor, Designer, Director | 1927 - 1951 | 8 | |
| Mitchell, Ruth | Ruth Mitchell | Actor | 1994 - 2005 | 7 | |
| Mitra, Sambhu | Sambhu Mitra | Actor, Adaptation, Director, Translator | 1952 - 2002 | 10 | |
| Mitzscherling, Barbara | Barbara Mitzscherling | Actor | 1966 | 1 | |
| Mitzscherling, Joachim | Joachim Mitzscherling | Actor | 1966 | 1 | |
| Mitzscherling, Klaus-Peter | Klaus-Peter Mitzscherling | Actor | 1966 | 1 | |
| Miura, Chieko | Chieko Miura | Actor | 1999 - 2002 | 4 | |
| Miyauchi, Mitsuya | Mitsuya Miyauchi | Translator | 1986 | 1 | |
| Mladeck, Kyra | Kyra Mladeck | Actor | 1971 - 2003 | 4 | |
| Moan, Henny | Henny Moan | Actor | 1957 - 2013 | 64 | |
| Mochizuki, Michiharu | Michiharu Mochizuki | Actor | 1983 - 1994 | 3 | |
| Möckel, Manfred | Manfred Möckel | Dramaturg | 1967 | 1 | |
| Mockeridge, Jeremy | Jeremy Mockeridge | Actor | 2001 | 1 | |
| Modén, Mirja | Mirja Modén | Actor | 1989 - 1991 | 3 | |
| Moder, Janko | Janko Moder | Translator | 1970 - 2019 | 15 | |
| Modjeska, Helena | Helena Modjeska | Actor | 1883 | 1 | |
| Modugno, Lodovica | Lodovica Modugno | Actor | 1969 - 1974 | 4 | |
| Modzelewska, Józefa | Józefa Modzelewska | Actor | 1891 - 1920 | 8 | |
| Moe, Stig-Werner | Stig-Werner Moe | Actor | 1992 - 1996 | 2 | |
| Moen, Erik | Erik Moen | Actor | 1997 | 1 | |
| Moggridge, Alex | Alex Moggridge | Actor | 2006 | 1 | |
| Mogyorósi, József | József Mogyorósi | Actor | 1962 | 1 | |
| Mohácsi, Irén | Irén Mohácsi | Actor | 1954 | 1 | |
| Mohamed, Makbul | Makbul Mohamed | Actor | 2005 - 2006 | 2 | |
| Mohr, Betty | Betty Mohr | Actor | 1934 - 1935 | 2 | |
| Moitra, Arati | Arati Moitra | Actor | 1958 | 1 | |
| Molander, Gustaf | Gustaf Molander | Actor | 1921 - 1925 | 2 | |
| Molander, Karin | Karin Molander | Actor | 1902 | 1 | |
| Moldovan, Dorothea | Dorothea Moldovan | Actor | 2006 | 2 | |
| Moliński, Rudolf | Rudolf Moliński | Actor | 1988 | 1 | |
| Molitorisz, Manfred | Manfred Molitorisz | Director | 1980 | 1 | |
| Molloy, David | David Molloy | Actor | 1981 | 1 | |
| Molo, Roberto | Roberto Molo | Actor | 2004 | 1 | |
| Monaci, Aldo | Aldo Monaci | Actor | 1955 - 1956 | 2 | |
| Monaci, Berto | Berto Monaci | Actor | 1955 - 1956 | 2 | |
| Monnard, Heinz | Heinz Monnard | Actor | 1897 - 1912 | 20 | |
| Montag, Seppl | Seppl Montag | Actor | 1936 | 1 | |
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