| Kolár, Karel | Karel Kolár | Actor | 1910 - 1941 | 5 | |
| König, Erna | Erna König | Actor | 1910 - 1933 | 3 | |
| Kasprowicz, Jan | Jan Kasprowicz | Translator | 1910 - 1925 | 8 | |
| Kronbergs, Augusts | Augusts Kronbergs | Actor | 1910 - 1921 | 6 | |
| Kustermann, Otto | Otto Kustermann | Actor, Director | 1910 - 1917 | 8 | |
| Kamnitzer, Heinrich | Heinrich Kamnitzer | Actor | 1910 - 1916 | 2 | |
| Klihm, Gertrud | Gertrud Klihm | Costume Designer | 1910 - 1913 | 5 | |
| Kułakowski, Zygmunt | Zygmunt Kułakowski | Actor | 1910 - 1913 | 5 | |
| Koop, Else | Else Koop | Actor | 1910 - 1912 | 4 | |
| Karst, Charlotte | Charlotte Karst | Actor | 1910 - 1911 | 4 | |
| Kalkum, Georg | Georg Kalkum | Actor | 1910 | 1 | |
| Kirchhofer, Werner | Werner Kirchhofer | Actor | 1910 | 1 | |
| Kalter, Johanna | Johanna Kalter | Costume Designer | 1910 | 1 | |
| Köhler, Georg | Georg Köhler | Actor | 1910 | 1 | |
| Krebs, Karl | Karl Krebs | Actor | 1910 | 1 | |
| Karlinger, Adolf | Adolf Karlinger | Actor | 1910 | 1 | |
| Kaltenbach, Erich | Erich Kaltenbach | Actor | 1910 | 1 | |
| Kleine, Olly | Olly Kleine | Actor | 1910 | 1 | |
| Kofoed, Juul | Juul Kofoed | Actor | 1910 | 2 | |
| Kelly, Gregory | Gregory Kelly | Actor | 1910 | 3 | |
| Kamiński, Wiktor | Wiktor Kamiński | Actor | 1910 | 1 | |
| Kopacz, - | - Kopacz | Actor | 1910 | 1 | |
| Kaktiņš, Ādolfs | Ādolfs Kaktiņš | Actor | 1910 | 1 | |
| Kostula, H. | H. Kostula | Translator | 1910 | 1 | |
| Karasiński, Edmund | Edmund Karasiński | Actor | 1910 | 1 | |
| Kalinowski, Eugeniusz | Eugeniusz Kalinowski | Actor | 1910 | 1 | |
| Kaminsky, Esther Rachel | Esther Rachel Kaminsky | Actor | 1910 | 4 | |
| Kaminsky, Abraham Isaac | Abraham Isaac Kaminsky | Actor | 1910 | 2 | |
| Kuhlmann, Elisabeth | Elisabeth Kuhlmann | Actor | 1909 - 1960 | 5 | |
| Korth, Walter | Walter Korth | Actor | 1909 - 1931 | 6 | |
| Kennedy, Mela | Mela Kennedy | Actor | 1909 - 1929 | 7 | |
| Kaufmann, Paul | Paul Kaufmann | Actor | 1909 - 1927 | 11 | |
| Knüpfer, Felix | Felix Knüpfer | Actor, Director | 1909 - 1923 | 4 | |
| Kosel, Walter | Walter Kosel | Actor | 1909 - 1919 | 8 | |
| Knopp, Kornelia | Kornelia Knopp | Actor | 1909 - 1918 | 3 | |
| Kernic, Anka | Anka Kernic | Actor | 1909 - 1918 | 6 | |
| Kokalis, Augusts | Augusts Kokalis | Actor | 1909 - 1914 | 3 | |
| Kny, Johanna | Johanna Kny | Actor | 1909 - 1911 | 2 | |
| Kirov, Geno | Geno Kirov | Actor | 1909 - 1911 | 3 | |
| Kopczewska, Zofia | Zofia Kopczewska | Actor | 1909 - 1910 | 2 | |
| Kontogiannis, Orestis | Orestis Kontogiannis | Actor | 1909 - 1910 | 4 | |
| Kerb, Martin | Martin Kerb | Actor | 1909 - 1910 | 2 | |
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