| Kossowsky, Jorge | Jorge Kossowsky | Assistant Director, Director | 1952 - 1956 | 3 | |
| Kerry, Otto | Otto Kerry | Actor | 1952 - 1965 | 2 | |
| Koch, Heinrich | Heinrich Koch | Adaptation, Director, Dramaturg, Translator | 1952 - 1978 | 17 | 1 |
| Krohg, Sossen | Sossen Krohg | Actor | 1952 - 2006 | 20 | 1 |
| Kane, Patricia | Patricia Kane | Actor, Choreographer | 1953 | 2 | |
| Köhler, Kurt G. | Kurt G. Köhler | Actor | 1953 | 1 | |
| Kinzinger, Irene | Irene Kinzinger | Actor | 1953 | 3 | |
| Karlsson, Bertil | Bertil Karlsson | Actor | 1953 | 2 | |
| Kamil, Yusuf | Yusuf Kamil (Yūsuf Kāmil) | Director | 1953 | 1 | |
| Kieburg, Christel | Christel Kieburg | Actor | 1953 - 1954 | 4 | |
| Kjelle, Ragnvald | Ragnvald Kjelle | Actor | 1953 - 1954 | 2 | |
| Kampanellis, Iakovos | Iakovos Kampanellis | Adaptation | 1953 - 1957 | 4 | |
| Kranz, Mario | Mario Kranz | Actor | 1953 - 1964 | 5 | |
| Karhi, Maija | Maija Karhi | Actor | 1953 - 1967 | 3 | |
| Koch, Freddy | Freddy Koch | Actor | 1953 - 1978 | 3 | |
| Kjelsberg, Johan | Johan Kjelsberg | Actor | 1953 - 1981 | 14 | 1 |
| Köper, Carmen-Renate | Carmen-Renate Köper | Actor | 1953 - 2006 | 6 | 1 |
| Kinge, Hans Jakob | Hans Jakob Kinge | Actor | 1953 - 2006 | 7 | 1 |
| Karczewski, Zdzisław | Zdzisław Karczewski | Actor, Director | 1954 | 2 | |
| Koczka, Gyula | Gyula Koczka | Actor | 1954 | 1 | |
| Kreibich, Margit | Margit Kreibich | Costume Designer | 1954 | 1 | |
| Konšelová, Naďa | Naďa Konšelová | Actor | 1954 | 1 | |
| Kwiatkowska, Danuta | Danuta Kwiatkowska | Actor | 1954 | 1 | |
| Kamins, Alene | Alene Kamins | Actor | 1954 | 1 | |
| Klotz, Klara | Klara Klotz | Actor | 1954 | 1 | |
| Keeser, Sophie | Sophie Keeser | Actor | 1954 | 1 | |
| Kuijper, Diny | Diny Kuijper | Actor | 1954 | 1 | |
| Kortenrayx, Miek | Miek Kortenrayx | Actor | 1954 | 1 | |
| Kocks, Hans | Hans Kocks | Musician | 1954 | 1 | |
| Keus, Kees | Kees Keus | Mask Maker | 1954 | 1 | |
| Kianne, Yrjö | Yrjö Kianne | Actor | 1954 | 1 | |
| Kindler, Klaus | Klaus Kindler | Actor | 1954 | 2 | |
| Klaus, Valentin | Valentin Klaus | Actor | 1954 | 1 | |
| Kalck, Hans-Günther | Hans-Günther Kalck | Actor | 1954 | 1 | |
| Kempken, Helmut | Helmut Kempken | Actor | 1954 | 1 | |
| Kampen, Irma | Irma Kampen | Actor | 1954 | 1 | |
| Katz, Lorley | Lorley Katz | Actor | 1954 | 1 | |
| Kemper, Ruth, Maria | Ruth Maria Kemper | Actor | 1954 | 1 | |
| Krukowski, Ernst | Ernst Krukowski | Actor | 1954 | 1 | |
| Koffmane, Robert | Robert Koffmane | Actor | 1954 | 2 | |
| Kulina, Adolf | Adolf Kulina | Actor | 1954 | 1 | |
| Kraus, Herold | Herold Kraus | Actor | 1954 | 1 | |
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