| Korb, Ludwig | Ludwig Korb | Actor | 1915 - 1917 | 2 | |
| Klossowski, Erich | Erich Klossowski | Costume Designer, Designer | 1915 | 2 | |
| Kaiser-Titz, Erich | Erich Kaiser-Titz | Actor | 1915 | 2 | |
| Kirschner, - | - Kirschner | Costume Designer | 1916 | 2 | |
| Koehler, Albert | Albert Koehler | Actor, Director | 1916 | 2 | |
| Knapp, Cornelia | Cornelia Knapp | Actor | 1916 - 1917 | 2 | |
| Koch, Betty | Betty Koch | Actor | 1917 - 1921 | 2 | |
| Kroll, Felix | Felix Kroll | Actor | 1918 | 2 | |
| Krämer, Albert | Albert Krämer | Actor | 1918 - 1923 | 2 | |
| Krahn, Maria | Maria Krahn | Actor | 1918 - 1935 | 2 | 1 |
| Kock, Katharina | Katharina Kock | Actor | 1918 - 1919 | 2 | |
| Kurz, Werner | Werner Kurz | Actor | 1918 | 2 | |
| Kolb, Hertha | Hertha Kolb | Actor | 1921 - 1922 | 2 | |
| Kulisch, Walter | Walter Kulisch | Actor | 1913 - 1919 | 2 | |
| Krüger, Otto | Otto Krüger | Actor | 1919 - 1925 | 2 | |
| Krieger, Gustav | Gustav Krieger | Actor | 1919 - 1925 | 2 | |
| Klühe, Erich | Erich Klühe | Actor | 1919 - 1920 | 2 | |
| Körner, Emma | Emma Körner | Actor | 1920 - 1924 | 2 | |
| Kner, Hermann | Hermann Kner | Actor | 1917 - 1921 | 2 | |
| Kohler, Anna | Anna Kohler | Actor | 1918 - 1921 | 2 | |
| Kremer, Tilly | Tilly Kremer | Actor | 1922 | 2 | |
| Keller-Nebri, Kurt | Kurt Keller-Nebri | Actor | 1911 - 1922 | 2 | |
| Krall, Marie | Marie Krall | Actor | 1923 - 1925 | 2 | |
| Kalischer, Margarethe | Margarethe Kalischer | Actor | 1919 - 1923 | 2 | |
| Klix, Rudolf | Rudolf Klix | Actor | 1924 - 1932 | 2 | |
| Klupp, Robert | Robert Klupp | Actor | 1912 - 1924 | 2 | |
| Kinzler, Friedrich | Friedrich Kinzler | Actor | 1924 - 1938 | 2 | |
| Krehan, Hermann | Hermann Krehan | Designer | 1925 | 2 | |
| Knüpffer, Paula | Paula Knüpffer | Actor | 1925 - 1927 | 2 | |
| Klippel, Fritz | Fritz Klippel | Actor | 1925 - 1934 | 2 | |
| Kaufmann, Tessy | Tessy Kaufmann | Actor | 1926 | 2 | |
| Kempter, Berta | Berta Kempter | Actor | 1926 | 2 | |
| Kempert, Otto | Otto Kempert | Actor | 1926 | 2 | |
| Kirschbaum, Lissy | Lissy Kirschbaum | Actor | 1926 | 2 | |
| Klebert jr., Karl | Karl Klebert jr. | Actor | 1926 | 2 | |
| Kersebaum, Rose | Rose Kersebaum | Actor | 1926 | 2 | |
| Kopp, Mila | Mila Kopp | Actor | 1928 - 1956 | 2 | 1 |
| Kaiser, Friedrich Wilhelm | Friedrich Wilhelm Kaiser | Actor | 1928 | 2 | 1 |
| Köblitz, Fritz | Fritz Köblitz | Actor | 1928 - 1929 | 2 | |
| Krohn, Max | Max Krohn | Composer | 1929 - 1935 | 2 | |
| Kraus, Hilde Maria | Hilde Maria Kraus | Actor | 1930 - 1932 | 2 | |
| Künkler, Karl | Karl Künkler | Actor | 1931 | 2 | |
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