| Muszyński, Antoni | Antoni Muszyński | Designer | 1955 | 1 | |
| Müllerová, M. | M. Müllerová | Actor | 1955 | 1 | |
| Markovičová, M. | M. Markovičová | Actor | 1955 | 1 | 1 |
| Matĕjová, Libuše | Libuše Matĕjová | Actor | 1955 | 1 | |
| Manu, George | George Manu | Actor | 1955 | 1 | |
| Molin, Ica | Ica Molin | Actor | 1955 | 1 | |
| Matei, Gelu | Gelu Matei | Choreographer | 1955 | 1 | |
| Mētra, Jānis | Jānis Mētra | Actor | 1955 | 1 | |
| Magnus, Dorothy, B. | Dorothy B. Magnus | Director | 1955 | 1 | |
| Macdonald, Murray | Murray Macdonald | Director | 1955 | 1 | 1 |
| Matić, Vladislav | Vladislav Matić | Actor | 1955 | 1 | |
| Mirkin, Ja. | Ja. Mirkin | Director | 1955 | 1 | |
| Medina, Estela | Estela Medina | Actor | 1954 - 1979 | 3 | |
| Martin, Harald | Harald Martin | Designer | 1954 - 1973 | 8 | 1 |
| Meyer, Hanna | Hanna Meyer | Actor | 1954 - 1961 | 2 | |
| Medford, Don | Don Medford | Director | 1954 - 1959 | 2 | |
| Meyer, Roald | Roald Meyer | Actor | 1954 - 1958 | 3 | |
| Martínez, Lilia | Lilia Martínez | Actor | 1954 - 1956 | 2 | |
| Mateos, Héctor | Héctor Mateos | Actor | 1954 - 1956 | 2 | |
| Matute, Ivaro | Álvaro Matute (Ivaro Matute) | Actor | 1954 - 1956 | 2 | |
| Muñoz, José | José Muñoz | Actor | 1954 - 1956 | 2 | |
| Márquez, Rubén | Rubén Márquez | Actor | 1954 - 1956 | 2 | |
| Múgica, Angelita Consuelo | Angelita Consuelo Múgica | Costume Designer | 1954 - 1956 | 2 | |
| Mendizabal, Nelly | Nelly Mendizabal | Actor | 1954 - 1955 | 2 | |
| Malmé, Mona | Mona Malmé | Actor | 1954 | 1 | |
| Mohácsi, Irén | Irén Mohácsi | Actor | 1954 | 1 | |
| Moritz, Dorothea | Dorothea Moritz | Actor | 1954 | 1 | |
| Maurin, Yves-Marie | Yves-Marie Maurin | Actor | 1954 | 1 | |
| Monnier, Madeleine | Madeleine Monnier | Designer | 1954 | 1 | |
| Mantesi, Gianni | Gianni Mantesi | Actor | 1954 | 1 | |
| Moraldi, Franco | Franco Moraldi | Actor | 1954 | 1 | |
| Morelli, Hr. | Hr. Morelli | Actor | 1954 | 1 | |
| Mann, Hubert | Hubert Mann | Actor | 1954 | 1 | |
| Mochan, Carmen | Carmen Mochan | Actor | 1954 | 1 | |
| Masterson, Dorothy | Dorothy Masterson | Actor | 1954 | 1 | |
| Müller-Bütow, Hedwig | Hedwig Müller-Bütow | Actor | 1954 | 1 | |
| Muggelberg, Walter | Walter Muggelberg | Actor | 1954 | 1 | |
| McGarry, Jim | Jim McGarry | Actor | 1954 | 2 | |
| McGarry, John | John McGarry | Actor | 1954 | 1 | |
| Măruţă, Marina | Marina Măruţă | Actor | 1954 | 1 | |
| Manolescu, Ion Aurel | Ion Aurel Manolescu | Actor | 1954 | 1 | |
| Montalbán, Helena | Helena Montalbán | Actor | 1954 | 1 | |
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