| Kießling, Johanna | Johanna Kießling | Actor | 1912 | 1 | |
| Krüger-Michaelis, Melanie | Melanie Krüger-Michaelis | Actor | 1913 | 1 | |
| Keller, Rudolf | Rudolf Keller | Actor | 1913 | 1 | |
| Kuenzer, Adolf | Adolf Kuenzer | Actor | 1913 | 1 | |
| Kräger, August | August Kräger | Actor | 1913 | 1 | |
| Kroczak, Emil | Emil Kroczak | Actor | 1913 - 1916 | 4 | |
| Keller, Lilli | Lilli Keller | Actor | 1913 | 1 | |
| Karchow, Ernst Günther | Ernst Günther Karchow | Actor | 1913 - 1933 | 4 | |
| Kernic, Anka | Anka Kernic | Actor | 1909 - 1918 | 6 | |
| Kramer, Ernst | Ernst Kramer | Actor | 1913 - 1914 | 2 | |
| Kiefer, Frieda | Frieda Kiefer | Actor | 1913 - 1914 | 2 | |
| Knelke, Gerte | Gerte Knelke | Actor | 1913 | 1 | |
| Klein-Rohden, Rudolf | Rudolf Klein-Rohden | Actor | 1898 - 1914 | 5 | |
| Kessell, Nanny | Nanny Kessell | Actor | 1914 | 1 | |
| Keppler, Ernst | Ernst Keppler | Actor | 1919 - 1927 | 3 | |
| Kuhn, Marga | Marga Kuhn | Actor | 1914 | 1 | |
| Krause, Mila | Mila Krause | Actor | 1914 | 1 | |
| Kraus, Hans Adalbert | Hans-Adalbert Kraus (Hans Adalbert Kraus) | Actor | 1932 - 1961 | 6 | |
| Köllner, Herbert | Herbert Köllner | Actor | 1914 - 1960 | 2 | |
| Koßwig, Curt | Curt Koßwig | Actor | 1914 | 2 | |
| Krause, Charlotte | Charlotte Krause | Actor | 1914 - 1928 | 5 | 1 |
| Koch, Maria | Maria Koch | Actor | 1913 - 1914 | 2 | |
| Keßler, Hugo | Hugo Keßler | Actor | 1915 - 1931 | 5 | |
| Kaufmann, Martha | Martha Kaufmann | Actor | 1915 - 1918 | 3 | |
| Körner, Lothar | Lothar Körner | Actor | 1915 - 1925 | 26 | |
| König, Gisela | Gisela König | Actor | 1917 - 1921 | 3 | |
| Kahle, Elisabeth | Elisabeth Kahle | Actor | 1915 | 2 | |
| Klinder, Lotte | Lotte Klinder | Actor | 1915 | 1 | |
| Kirchberger, Leo | Leo Kirchberger | Actor | 1915 - 1918 | 2 | |
| Kleiner, Oskar | Oskar Kleiner | Actor | 1915 | 1 | |
| Kämmerer, Karl | Karl Kämmerer | Actor | 1915 | 1 | |
| Kaiser, Lola | Lola Kaiser | Actor | 1915 | 1 | |
| Korb, Ludwig | Ludwig Korb | Actor | 1915 - 1917 | 2 | |
| Keßler, Eva | Eva Keßler | Actor | 1915 | 1 | |
| Kaiser-Titz, Erich | Erich Kaiser-Titz | Actor | 1915 | 2 | |
| Kabisch, Adalbert | Adalbert Kabisch | Actor | 1915 | 1 | |
| Koch, Karl | Karl Koch | Actor | 1915 | 1 | |
| Klotz, Adolf | Adolf Klotz | Actor | 1916 | 1 | |
| Kleinert, Robert | Robert Kleinert | Actor | 1916 - 1955 | 8 | |
| Kraus, Rudolf | Rudolf Kraus | Actor | 1916 | 1 | |
| Krauß, Werner | Werner Krauß | Actor | 1913 - 1950 | 16 | 1 |
| Knapp, Cornelia | Cornelia Knapp | Actor | 1916 - 1917 | 2 | |
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