| Klein, Cesar | Cesar Klein | Costume Designer, Designer | 1921 - 1940 | 6 | |
| Klein, C. A. | C. A. Klein | Director | 1909 | 1 | |
| Klein, Barbara | Barbara Klein | Actor | 1975 - 1991 | 2 | |
| Klein, Anja | Anja Klein | Actor | 1999 | 1 | |
| Klein, Alida | Alida Klein | Actor | 1896 | 1 | |
| Klein, Alfred | Alfred Klein | Actor | 1918 | 1 | |
| Klein, Alexander | Alexander Klein | Actor | 1931 | 1 | |
| Klein, Albert | Albert Klein | Actor | 1896 - 1913 | 11 | |
| Klein, Adolf | Adolf Klein | Actor | 1889 - 1900 | 5 | 1 |
| Klein-Weismann, Gerda | Gerda Klein-Weismann | Actor | 1934 | 1 | |
| Klein-Rohden, Rudolf | Rudolf Klein-Rohden | Actor | 1898 - 1914 | 5 | |
| Klein-Donath, Eva | Eva Klein-Donath | Actor | 1930 | 1 | |
| Kleimo, Emily | Emily Kleimo | Actor | 2018 | 1 | |
| Kleimjonova, Lilia | Lilia Kleimjonova | Assistant Director | 1989 | 1 | |
| Kleijn, Tom | Tom Kleijn | Translator | 1992 - 2008 | 21 | 1 |
| Kleij, Lis, van der | Lis van der Kleij | Choreographer | 1991 | 1 | |
| Kleij, - | - Kleij | Actor | 1893 | 1 | |
| Kleider, Sarah | Sarah Kleider | Actor | 1918 | 1 | |
| Kleiberg, Mimi | Mimi Kleiberg | Actor | 2006 | 1 | 2 |
| Kleiber, Walter | Walter Kleiber | Dancer | 1956 | 2 | |
| Kleiber, Hermine | Hermine Kleiber | Actor | 1895 | 1 | |
| Kleiber, Erich | Erich Kleiber | Conductor | 1917 | 1 | |
| Kleiber, Eleonore | Eleonore Kleiber | Costume Designer | 1964 - 2000 | 53 | |
| Kleger, Sandro | Sandro Kleger | Actor | 1989 | 1 | |
| Kleger, Dylan | Dylan Kleger | Actor | 1987 | 1 | |
| Klefstad, Lloyd | Lloyd Klefstad | Actor | 1937 | 1 | |
| Klefberg, Hilda | Hilda Klefberg | Actor | 1879 - 1895 | 7 | 1 |
| Kleene, Guido | Guido Kleene | Actor | 2003 | 1 | |
| Kleemann, Fredi | Fredi Kleemann | Actor | 1965 | 2 | |
| Klee, Lorenz | Lorenz Klee | Actor | 2008 | 7 | |
| Klee, Juliane | Juliane Klee | Actor | 1996 | 1 | |
| Klee, Josefine | Josefine Klee | Actor | 1928 - 1931 | 2 | 1 |
| Kleczyńska, Anna (?) | Anna (?) Kleczyńska | Actor | 1909 | 1 | |
| Klecker, Angela | Angela Klecker | Actor | 1996 | 1 | 1 |
| Klebert, Paula | Paula Klebert | Actor | 1926 | 1 | |
| Klebert sen., Karl | Karl Klebert sen. | Actor | 1926 | 1 | |
| Klebert jr., Karl | Karl Klebert jr. | Actor | 1926 | 2 | |
| Kleber, Martin | Martin Kleber | Actor | 1937 | 1 | |
| Kleber, Irmgard | Irmgard Kleber | Actor | 1955 - 1968 | 2 | |
| Kleber, Hans | Hans Kleber | Costume Designer, Designer | 1972 - 1977 | 5 | |
| Kleber, Bernhard | Bernhard Kleber | Designer | 2009 | 1 | |
| Klebe, Johanna | Johanna Klebe | Actor | 1922 | 2 | |
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