| König, Brigitte | Brigitte König | Actor | 1972 - 2013 | 2 | |
| Kraft, Jürgen | Jürgen Kraft | Actor | 1972 | 1 | |
| Koktová, Vĕra | Vĕra Koktová | Actor | 1972 - 1994 | 6 | |
| Kesting, Christian | Christian Kesting | Actor | 1905 - 1911 | 3 | |
| Kreuzwieser, Hermann | Hermann Kreuzwieser | Actor | 1911 | 1 | |
| Knöfler, Fritz | Fritz Knöfler | Actor | 1905 - 1911 | 3 | |
| Kirchner, Otto | Otto Kirchner | Director | 1929 | 1 | |
| Kayser, Rosarito | Rosarito Kayser | Actor | 1930 | 1 | |
| Kayser, Manuel | Manuel Kayser | Actor | 1930 | 1 | |
| Keppler, Brigitte | Brigitte Keppler | Actor | 1947 | 1 | |
| Krügel, Gisela | Gisela Krügel | Actor | 1947 | 1 | |
| Katselis, Pelos | Pelos Katselis | Actor, Director, Translator | 1930 - 1994 | 8 | |
| Kühne, Maria | Maria Kühne | Actor | 1947 | 1 | |
| Keating, Ruth | Ruth Keating | Costume Designer, Designer | 1932 - 1939 | 4 | |
| Kubik, Karl-Heinz | Karl-Heinz Kubik | Director | 1972 | 1 | |
| Katzer, Manfred | Manfred Katzer | Actor | 1972 | 1 | |
| Kammerer, Marcella | Marcella Kammerer | Actor | 1951 - 1952 | 2 | |
| Kleinová, V. | V. Kleinová | Actor | 1940 | 1 | |
| Konečný, K. | K. Konečný | Actor | 1939 - 1940 | 2 | |
| Kouritis, Ilias | Ilias Kouritis | Actor | 1942 - 1954 | 6 | |
| Klonis, Kleovoulos | Kleovoulos Klonis | Designer | 1933 - 1965 | 16 | |
| Kurel, Rudolf | Rudolf Kurel | Mask Maker | 1972 | 1 | |
| Křiváček, Ladislav | Ladislav Křiváček | Actor | 1972 | 2 | |
| Kopřiva, Ludĕk | Ludĕk Kopřiva | Actor | 1972 | 2 | |
| Kantorková, Miriam | Miriam Kantorková | Actor | 1972 | 1 | |
| Křížek, Bohumil | Bohumil Křížek | Actor | 1972 | 1 | |
| Kotva, Jan | Jan Kotva | Actor | 1972 | 1 | |
| Koelliker, Werner | Werner Koelliker | Actor | 1952 | 1 | |
| Kantardzhiev, Nikola | Nikola Kantardzhiev | Composer | 1956 | 1 | |
| Karamitev, Apostol | Apostol Karamitev | Actor | 1956 | 1 | |
| Kazarska, Stefka | Stefka Kazarska | Actor | 1956 - 1971 | 2 | |
| Krumenacher, Fritz | Fritz Krumenacher | Designer | 1957 | 1 | |
| Kres, Hans | Hans Kres | Mask Maker | 1959 - 1963 | 6 | |
| Kersten, Herbert | Herbert Kersten | Actor | 1959 | 1 | |
| Klinger, Charlotte | Charlotte Klinger | Actor | 1960 - 1982 | 7 | |
| Krieger, Gerhard | Gerhard Krieger | Actor | 1905 | 1 | |
| Knick, Gerhard | Gerhard Knick | Director | 1961 - 1964 | 2 | |
| Kotsopoulos, Thanos | Thanos Kotsopoulos | Actor, Director | 1930 - 1979 | 14 | |
| Kirchhoff, Otti | Otti Kirchhoff | Mask Maker | 1966 - 1977 | 2 | |
| Knopp, Ruth | Ruth Knopp | Actor | 1923 | 1 | |
| Kilden, Elaine | Elaine Kilden | Actor | 1978 | 1 | |
| Kindermann, Anita | Anita Kindermann | Actor | 1923 | 1 | |
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